Amended and Restated Series Supplement: Series 2003-4



 Exhibit 4.4 
 DISCOVER BANK 
 Master Servicer, Servicer and Seller 
 and 
 U.S. BANK NATIONAL ASSOCIATION 
 Trustee 
 on behalf of the Certificateholders

 AMENDED AND RESTATED SERIES SUPPLEMENT 
 Dated as of July 31, 2009 
 to 
 AMENDED AND RESTATED POOLING AND SERVICING AGREEMENT 
 Dated as of November 3, 2004, as
amended  
 Subseries 1 
 [RESERVED] 
 Subseries 2 
 $750,000,000 Class A, Subseries 2 Certificates 
 $39,474,000 Class B, Subseries 2
Certificates 
 DISCOVER CARD MASTER TRUST I 
 SERIES 2003-4 CERTIFICATES 







 TABLE OF CONTENTS 
  


					
	 	  	Page
	SERIES TERM SHEET	  	1
	ANNEX	  	1
			
	SECTION 1.	  	Definitions	  	1
			
	SECTION 2.	  	Subordination	  	27
			
	SECTION 3.	  	Representations and Warranties of the Sellers	  	27
			
	SECTION 4.	  	Representations and Warranties of Discover Bank as Master Servicer and Servicer	  	29
			
	SECTION 5.	  	Representations and Warranties of Other Servicers	  	29
			
	SECTION 6.	  	Representations and Warranties of the Trustee	  	29
			
	SECTION 7.	  	Authentication of Certificates	  	29
			
	SECTION 8.	  	Establishment and Administration of Investor Accounts and the Credit Enhancement Account	  	29
			
	SECTION 9.	  	Allocations of Collections	  	34
			
	SECTION 10.	  	Payments	  	50
			
	SECTION 11.	  	Credit Enhancement	  	53
			
	SECTION 12.	  	Alternative Credit Support Election	  	55
			
	SECTION 13.	  	Calculation of Investor Losses	  	56
			
	SECTION 14.	  	Servicing Compensation	  	56
			
	SECTION 15.	  	Class Interest Rate Caps	  	56
			
	SECTION 16.	  	Class Interest Rate Swaps	  	58
			
	SECTION 17.	  	Investor Certificateholders’ Monthly Statement	  	58
			
	SECTION 18.	  	Master Servicer’s Monthly Certificate	  	58
			
	SECTION 19.	  	Notices	  	58
			
	SECTION 20.	  	Additional Amortization Events	  	59
			
	SECTION 21.	  	Early Accumulation Events; Additional Amortization Events	  	59
			
	SECTION 22.	  	Purchase of Investor Certificates and Series Termination	  	60
			
	SECTION 23.	  	Variable Accumulation Period	  	61
			
	SECTION 24.	  	Optional Accumulation Period Commencement	  	61
			
	SECTION 25.	  	Ratification of Pooling and Servicing Agreement	  	62
			
	SECTION 26.	  	Counterparts	  	62

  

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	SECTION 27.	  	Governing Law	  	62
			
	SECTION 28.	  	Intention of Parties	  	62
			
	SECTION 29.	  	Amendment for Sale Accounting Purposes	  	62
			
	SECTION 30.	  	Election Under Delaware Asset-Backed Securities Facilitation Act	  	63
			
	SECTION 31.	  	Issuance of Additional Certificates	  	63

  

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 EXHIBITS 
  

			
	EXHIBIT A-1:	  	[RESERVED]
		
	EXHIBIT A-2:	  	Form of Investor Certificates, Subseries 2
		
	EXHIBIT B-1:	  	[RESERVED]
		
	EXHIBIT B-2:	  	Form of Certificateholders’ Monthly Statement. Subseries 2
		
	EXHIBIT C-1:	  	[RESERVED]
		
	EXHIBIT C-2:	  	Form of Master Servicer’s Monthly Certificate. Subseries 2

  

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 DISCOVER CARD MASTER TRUST I 
 SERIES 2003-4 CERTIFICATES 
 This Series of Master Trust Certificates is
established pursuant to Section 6.06 of that certain Amended and Restated Pooling and Servicing Agreement, dated as of November 3, 2004, as amended, by and between DISCOVER BANK, a Delaware banking corporation (“Discover Bank”),
as Master Servicer, Servicer and Seller and U.S. BANK NATIONAL ASSOCIATION (the “Trustee”), as Trustee (the “Pooling and Servicing Agreement”). This SERIES TERM SHEET and the ANNEX attached hereto, by and among the Master
Servicer, the Servicers, the Sellers and the Trustee, constitute the AMENDED AND RESTATED SERIES SUPPLEMENT (the “Series Supplement”). The Pooling and Servicing Agreement and this Series Supplement together establish the Series of Master
Trust Certificates to be known as the DISCOVER CARD MASTER TRUST I, SERIES 2003-4 CERTIFICATES. 
 This Series was originally comprised of
two Subseries (as such term is defined in Section 1(b) of the Annex attached hereto), each of which was treated as a separate Series of the Discover Card Master Trust I, as more fully set forth in the definition of “Subseries.” The
Subseries of the Discover Card Master Trust I, Series 2003-4 were known as “Subseries 1” and “Subseries 2.” The Investor Certificates of Subseries 1 were paid in full in accordance with their terms in November 2008 and December
2008. Accordingly, this Amended and Restated Series Supplement relates only to the Investor Certificates of Subseries 2, and the specific terms of and forms with respect to Subseries 1 are neither reflected nor amended herein. 
 RECITALS 
 WHEREAS, Discover Bank and
the Trustee are parties to that certain Series Supplement, dated as of December 30, 2003, relating to the Discover Card Master Trust I, Series 2003-4, Subseries 1 Certificates and the Series 2003-4, Subseries 2 Certificates (the “Original
Series Supplement”); 
 WHEREAS, as of the date hereof the Series 2003-4, Subseries 1 Certificates are not outstanding; 
 WHEREAS, Section 13.01(a) of the Pooling and Servicing Agreement provides, among other things, that the terms of the Original Series Supplement may
be amended to make changes in a manner that shall not adversely affect in any material respect the interests of the Holders of any Class of any Series then outstanding; 
 NOW THEREFORE, in consideration of the mutual agreements herein contained, each party agrees as follows for the benefit of the other parties and for the benefit of the Certificateholders of Series 2003-4, Subseries 2:

 SERIES TERM SHEET 
 SUBSERIES 1 
 [RESERVED] 
  


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 SUBSERIES 2 
  

			
	Date of Series Term Sheet	 	December 30, 2003.
		
	Group	 	One.
		
	Interchange Series	 	No; provided, however, that (i) to and including the date designated by the Master Servicer by notice to the Trustee as the “Interchange Series Trigger Date” (which date shall
not be earlier than the third Distribution Date after the effective date of this Series Supplement), (A) allocations of Interchange will be made to this Series as set forth herein; and (B) for purposes of any reallocations to be made to or from the
Group Interchange Reallocation Account pursuant to this Series Supplement or the Series Supplement for any other Series, related definitions, and provisions determining the Group Excess Spread, the Series Excess Spread and the Interchange Subgroup
Excess Spread, this Series shall be considered an Interchange Series; and (ii) on all dates following the Interchange Series Trigger Date, this Series shall be considered an Interchange Series for all purposes. For the avoidance of doubt, (a) all
outstanding Series shall be considered Interchange Series for purposes of determining the Series Excess Spread from after the effective date of this Series Supplement, (b) until the Interchange Series Trigger Date, (i) this Series shall not be
considered an Interchange Series for purposes of Section 9 of the applicable Series Supplements and (ii) any Amortization Event that is determined by reference to the greatest of the Series Excess Spread, the Group Excess Spread or the Interchange
Subgroup Excess Spread shall continue to be determined by reference to all three such excess spread amounts; and (c) after the Interchange Series Trigger Date, all provisions of any Series Supplement that have effect only so long as no outstanding
Series is not an Interchange Series shall cease to have effect.

  

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	Series Initial Investor Interest	 	$789,474,000.
		
	Class Initial Investor Interest of each Class of Investor Certificates	 	 Class A - $750,000,000; plus the face amount of any Class A Certificates issued in an increase of the Series Investor Interest pursuant
to Section 31.
  
 Class B - $39,474,000; plus the face amount of any Class B
Certificates issued in an increase of the Series Investor Interest pursuant to Section 31.

		
	Class A Expected Final Payment Date	 	The Distribution Date in November 2010.
		
	Class B Expected Final Payment Date	 	The Distribution Date in December 2010.
		
	Type of Structure	 	Bullet Maturity.
		
	Certificate Rates	 	Class A – LIBOR + 0.18% per annum, calculated on the basis of the actual number of days elapsed and a 360-day year.
		
		 	Class B – LIBOR + 0.43% per annum, calculated on the basis of the actual number of days elapsed and a 360-day year.
		
	Subseries	 	2 of 2.
		
	Monthly Amortization Rate	 	Not applicable.
		
	Prepayment Calculation Table	 	Not applicable.
		
	Prepayment Determination Date	 	Not applicable.
		
	Class Cap Rate	 	Not applicable.
		
	Class Maximum Rate	 	Not applicable.
		
	Class Interest Rate Swap	 	Not applicable.
		
	Interest Rate Swap Counterparty	 	Not applicable.
		
	Swap Trust Rate	 	Not applicable.
		
	Swap Counterparty Rate	 	Not applicable.
		
	Monthly Swap Deposit	 	Not applicable.
		
	LIBOR Determination Date	 	The second LIBOR Business Day immediately preceding the commencement of an Interest Accrual Period.

  

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	Series Cut-Off Date	 	December 1, 2003.
		
	Series Closing Date	 	December 30, 2003.
		
	Date from which Interest for first Interest Payment Date Shall Accrue	 	Series Closing Date.
		
	Distribution Dates	 	January 15, 2004 and the 15th
day of each calendar month thereafter (or, if such day is not a Business Day, the next succeeding Business Day).
		
	Interest Payment Dates	 	 Class A - The 15th day of each calendar month (or, if such day is not a Business Day, the next succeeding Business Day), commencing in January 2004.

  
 Class B - The 15th day of each calendar month (or, if such day is not a Business Day, the next succeeding Business Day), commencing in January 2004.


		
	Statement Dates	 	Each Distribution Date, commencing in January 2004.
		
	Principal Payment Date	 	Not applicable.
		
	Interest Calculation Dates	 	Not applicable.
		
	Accumulation Commencement Date	 	Not applicable.
		
	Accumulation Period	 	Unless an Amortization Event shall have occurred prior thereto, the period commencing on the Principal Commencement Date and ending on the earliest to occur of (x) the payment in full of the
Series Invested Amount, (y) the Amortization Commencement Date, and (z) the Series Termination Date.
		
	Accumulation Amount	 	(a) Through the Class A Expected Final Payment Date, (i) $62,500,000 or (ii) if the Master Servicer elects to delay commencement of the Accumulation Period in accordance with Section 23 or
if an increase in the Series Investor Interest pursuant to Section 31 has occurred, the Class A Initial Investor Interest divided by the number of Distribution Dates from the

  

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		 	commencement of the Accumulation Period through and including the Class A Expected Final Payment Date, and (b) thereafter, (i) $39,474,000 or (ii) if an increase in the Series Investor Interest
pursuant to Section 31 has occurred, the Class B Initial Investor Interest.
		
	Principal Commencement Date	 	The first day of the Due Period related to the December 2009 Distribution Date (or such later Distribution Date as the Master Servicer may elect in accordance with Section 23).
		
	Revolving Period	 	From the Series Cut-Off Date to but excluding the earlier to occur of (i) the Principal Commencement Date, and (ii) the Amortization Commencement Date.
		
	Controlled Liquidation Period	 	Not applicable.
		
	Early Accumulation Period	 	Not applicable.
		
	Type of Credit Enhancement	 	Cash collateral account.
		
	 Stated Shared Credit Enhancement Amount
  
 Stated Class A Credit Enhancement Amount
	 	 There shall be no Shared Credit Enhancement.
  
 There shall be no Class A Cash Collateral Credit Enhancement.

		
	Stated Class B Credit Enhancement Amount	 	$59,210,550.
		
	Credit Enhancement Provider	 	Collectively, the one or more lenders making a loan in order to provide the initial funds on deposit in the Credit Enhancement Account, or any successor provider of the Credit
Enhancement.
		
	 Maximum Shared Credit Enhancement Amount
  
 Maximum Class A Credit Enhancement Amount
	 	 There shall be no Shared Credit Enhancement.
  
 There shall be no Class A Cash Collateral Credit Enhancement.

		
	Maximum Class B Credit Enhancement Amount	 	On any Distribution Date (a) prior to the making of an Effective Alternative Credit Support Election, the greatest of (i) $7,894,740, (ii) an amount equal to 1%

  

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		 	of the Series Initial Investor Interest, and (iii) (x) if a Supplemental Credit Enhancement Event has not occurred, an amount equal to 7.5% of the Series Investor Interest as of the last
day of the related Due Period, or (y) if a Supplemental Credit Enhancement Event has occurred, an amount equal to 8.0% of the Series Investor Interest as of the last day of the related Due Period or (b) subsequent to the making of an Effective
Alternative Credit Support Election, the greatest of (i) $7,894,740, (ii) an amount equal to 1% of the Series Initial Investor Interest, and (iii) an amount equal to 12.5% of the Series Investor Interest as of the last day of the
related Due Period; provided, however, that if an Amortization Event with respect to the Series established hereby occurs, the Maximum Class B Credit Enhancement Amount for each Distribution Date thereafter shall equal the Maximum Class B Credit
Enhancement Amount for the Distribution Date immediately preceding the occurrence of the Amortization Event; and provided, further, that if a Credit Enhancement Drawing has been made, until such time as the Available Class B Credit Enhancement
Amount has been reinstated in an amount at least equal to the amount of such Credit Enhancement Drawing, the Maximum Class B Credit Enhancement Amount shall be the Maximum Class B Credit Enhancement Amount as of the date of such Credit Enhancement
Drawing.
		
	Total Maximum Credit Enhancement Amount	 	On any Distribution Date, the Maximum Class B Credit Enhancement Amount for such Distribution Date.
		
	Additional Credit Support Amount	 	The lesser of (x)(i) prior to the occurrence of a Supplemental Credit Enhancement Event, 5% of the Series Initial Investor Interest or (ii) following the occurrence of a Supplemental Credit
Enhancement Event, 4.5% of the Series Initial Investor Interest and (y) the difference between the Maximum Class B Credit Enhancement Amount (after giving effect to an Alternative Credit Support Election) and

  

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		 	the Available Class B Credit Enhancement Amount (immediately before giving effect to the Alternative Credit Support Election).
		
	Supplemental Credit Enhancement Amount	 	The lesser of (x)(i) prior to the occurrence of an Alternative Credit Support Election, 0.5% of the Series Initial Investor Interest or (ii) zero following the occurrence of an Alternative
Credit Support Election and (y) the difference between the Maximum Class B Credit Enhancement Amount (after giving effect to the occurrence of a Supplemental Credit Enhancement Event) and the Available Class B Credit Enhancement Amount (immediately
before giving effect to the occurrence of a Supplemental Credit Enhancement Event).
		
	Initial Subordinated Amount	 	$98,684,250.
		
	Additional Subordinated Amount	 	Prior to the occurrence of a Supplemental Credit Enhancement Event, 5% of the Series Initial Investor Interest and following the occurrence of a Supplemental Credit Enhancement Event, 4.5% of
the Series Initial Investor Interest.
		
	Supplemental Subordinated Amount	 	Prior to the effectiveness of an Alternative Credit Support Election, 0.5% of the Series Initial Investor Interest and zero following the effectiveness of an Alternative Credit Support Election.

		
	Series Buffer Amount	 	Zero.
		
	Interchange Subgroup Buffer Amount	 	Zero.
		
	Group Buffer Amount	 	Zero.
		
	Investor Servicing Fee Percentage	 	2.0% per annum calculated on the basis of a 360-day year of twelve 30-day months.
		
	Eligible for Reallocations to and from Other Series in Group	 	Yes.
		
	Series Termination Date	 	The first Business Day following the Distribution Date in May 2013.

  

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	Estimated Investment Shortfall	 	On any date of determination, the positive difference, if any, between (i) the Certificate Rate for the Class for whose benefit the amounts on deposit in the Series Principal Funding Account are
held as of such date of determination and (ii) the weighted average yield (expressed as a Money Market Yield) on the investments in the Series Principal Funding Account as of such date of determination.
		
	Estimated Yield	 	On any date of determination, the Portfolio Yield for the immediately preceding Due Period less 2.00%.
		
	Classes, if any, subject to Regulation S restrictions	 	Not applicable.
		
	Classes, if any, subject to ERISA restrictions	 	Class B.
		
	Bearer Certificates	 	Not applicable.
		
	Registered Certificates	 	Class A and Class B Certificates.
		
	Class A Certificate	 	Each certificate executed by the Sellers and authenticated by or on behalf of the Trustee, substantially in the form of Exhibit A-2-A.
		
	Class B Certificate	 	Each certificate executed by the Sellers and authenticated by or on behalf of the Trustee, substantially in the form of Exhibit A-2-B.
		
	Principal Paying Agent	 	 Class A – Not applicable.
  
 Class B – Not applicable.

		
	Paying Agents	 	Class A and Class B – the Corporate Trust Office of the Trustee.

  

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 IN WITNESS WHEREOF, the Sellers, the Master Servicer, the Servicers and the Trustee have caused this
Series Supplement to be duly executed by their respective officers thereunto duly authorized as of the date and year first above written. 
  

	
	DISCOVER BANK,
	    as Seller, Master Servicer and Servicer
	
	/s/ Michael F. Rickert
	Michael F. Rickert
	Vice President, Chief Financial Officer and Treasurer
	
	U.S. BANK NATIONAL ASSOCIATION,
	    as Trustee
	
	/s/ Patricia M. Child
	Patricia M. Child
	Vice President


 [Signature Page to Amended and Restated Series Supplement 2003-4] 







 ANNEX 
 In consideration of the mutual agreements herein contained, each party agrees as follows for the benefit of the other parties and for the benefit of the Certificateholders: 
 SECTION 1. Definitions 
 (a)
Capitalized terms not otherwise defined in this Series Supplement (including the Series Term Sheet) shall have the meanings ascribed to them in the Pooling and Servicing Agreement. Capitalized terms that refer to a Series refer to the Series
established hereby or a Subseries, if any, established in the Series Term Sheet of this Series Supplement specifying that such Subseries is to be treated as a separate Series herein and under the Pooling and Servicing Agreement and all of the other
Series Supplements of Discover Card Master Trust I. Capitalized terms that refer to a Class refer to a Class of the Series or Subseries, if any, established hereby, as applicable, unless the context otherwise clearly requires. 
 (b) The following terms have the definitions set forth below with respect to the Series established hereby, unless the context otherwise clearly
requires: 
 “Accumulation Amount,” if applicable, shall have the meaning set forth in the Series Term Sheet; provided,
however, that such amount may be adjusted pursuant to Section 23 or 24. 
 “Accumulation Commencement Date,” if
applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Accumulation Period,” if applicable, shall have
the meaning set forth in the Series Term Sheet. 
 “Additional Credit Support Amount” shall have the meaning set forth in
the Series Term Sheet. 
 “Additional Subordinated Amount” shall have the meaning set forth in the Series Term Sheet.

 “Alternative Credit Support Election” shall mean an election made by the Sellers pursuant to Section 12. 

“Amortization Commencement Date” shall mean the date on which an Amortization Event is deemed to occur pursuant to Section 20
hereof. 
 “Amortization Event” shall mean any event specified in Section 9.01 of the Pooling and Servicing Agreement
or in Section 20 and 21 hereof. 
 “Amortization Period” shall mean the period from, and including, the Amortization
Commencement Date to, and including, the earlier of (i) the date of the final distribution to Investor Certificateholders of the Series established hereby and (ii) the Series Termination Date. The first Distribution Date of the
Amortization Period shall be the Distribution Date in the calendar month following the Amortization Commencement Date. 







 “Available Class A Credit Enhancement Amount,” if applicable, shall have the
meaning set forth in the Series Term Sheet. Notwithstanding the foregoing, the Available Class A Credit Enhancement Amount for any Distribution Date shall not exceed the Maximum Class A Credit Enhancement Amount for such Distribution Date.

 “Available Class B Credit Enhancement Amount” shall mean, with respect to the first Distribution Date, the Stated Class B
Credit Enhancement Amount, and, thereafter, shall mean the amount available to be drawn under the Credit Enhancement with respect to the Available Class B Credit Enhancement Amount from time to time, which on any date of determination shall be equal
to the Available Class B Credit Enhancement Amount for the immediately preceding Distribution Date minus the amount of all Credit Enhancement Drawings with respect to the Available Class B Credit Enhancement Amount on or since such
immediately preceding Distribution Date, plus the amount of all payments made to the Trustee as administrator of the Credit Enhancement with respect to the Available Class B Credit Enhancement Amount pursuant to Section 9 plus,
following an Effective Alternative Credit Support Election, the Additional Credit Support Amount and, plus, following a Supplemental Credit Enhancement Event, the Supplemental Credit Enhancement Amount plus following an increase in the
Series Investor Interest pursuant to Section 31, the Increased Credit Enhancement Amount; provided, however, that from and after the Fully Funded Date, if any, the Available Class B Credit Enhancement Amount shall equal zero.
Notwithstanding the foregoing, the Available Class B Credit Enhancement Amount for any Distribution Date shall not exceed the Maximum Class B Credit Enhancement Amount for such Distribution Date. 
 “Available Shared Credit Enhancement Amount,” if applicable, shall mean, with respect to the first Distribution Date, the Stated Shared
Credit Enhancement Amount, and, thereafter, shall mean the amount available to be drawn under the Credit Enhancement with respect to the Available Shared Credit Enhancement Amount from time to time, which on any date of determination shall be equal
to the Available Shared Credit Enhancement Amount for the immediately preceding Distribution Date minus the amount of all Credit Enhancement Drawings with respect to the Available Shared Credit Enhancement Amount on or since such immediately
preceding Distribution Date, and plus the amounts of all payments made to the Trustee as administrator of the Credit Enhancement with respect to the Available Shared Credit Enhancement Amount pursuant to Section 9. Notwithstanding the
foregoing, the Available Shared Credit Enhancement Amount for any Distribution Date shall not exceed the Maximum Shared Credit Enhancement Amount for such Distribution Date. 
 “Available Subordinated Amount, “ if there is a Subordinate Class with respect to Class A, shall mean, on a Distribution Date, the
sum of 
 (a)(i) with respect to the first Distribution Date, the Initial Subordinated Amount or (ii) with respect to any
other Distribution Date, the Available Subordinated Amount after giving effect to all adjustments on the prior Distribution Date; and 
  

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 (b) the amount of Series Excess Servicing; 
 as such amount may be (x) reduced pursuant to the provisions of Section 9 to take into account (i) the amount of Class A and Class B Excess Servicing
used to reimburse the Class A Cumulative Investor Charged-Off Amount, (ii) the amount of Class B Excess Servicing used to reduce the Class A Required Amount Shortfall, (iii) the amount of the Class B Subordinated Payment and
(iv) the amount of any reduction in the Class B Investor Interest resulting from the reimbursement of the Class A Cumulative Investor Charged-Off Amount, in each case for such Distribution Date, and (y) increased pursuant to the
provisions of Section 9 to take into account the application of amounts on deposit in the Group Finance Charge Collections Reallocation Account and Group Interchange Reallocation Account (i) to reduce the Class B Required Amount Shortfall,
(ii) to reduce the Class B Cumulative Investor Charged-Off Amount and (iii) to increase the Available Class B Credit Enhancement Amount, in each case for such Distribution Date; provided, however, that from and after the Fully
Funded Date, if any, the Available Subordinated Amount will equal zero. 
 Upon the occurrence of a Supplemental Credit Enhancement Event, the Available
Subordinated Amount will be increased by the Supplemental Subordinated Amount. In addition, on the first Distribution Date following an Effective Alternative Credit Support Election, the Available Subordinated Amount shall be increased by the
Additional Subordinated Amount. On the date of an increase in the Series Investor Interest pursuant to Section 31, the Available Subordinated Amount shall be increased by the Increased Issuance Subordinated Amount. In no event, however, shall
the Available Subordinated Amount exceed (i) through the last Distribution Date preceding an Effective Alternative Credit Support Election, the Initial Subordinated Amount plus the Supplemental Subordinated Amount and the Increased Issuance
Subordinated Amount and (ii) thereafter, the sum of the Initial Subordinated Amount, the Supplemental Subordinated Amount, the Increased Issuance Subordinated Amount and the Additional Subordinated Amount. 
 “Calculation Period,” if applicable, shall have the meaning specified in the applicable interest rate cap agreement. 
 “Cedel” shall mean Clearstream Banking. 
 “Certificate Interest” shall mean, for any Class for any Interest Payment Date, the product of (a) the Class Invested Amount for such Class for such Interest Payment Date and (b) a fraction
the numerator of which is (1) with respect to each Class that has no Subclasses, the Certificate Rate for such Class or (2) with respect to each Class that has two or more Subclasses, the Class Weighted Average Certificate Rate, and the
denominator of which is (x) if the relevant Certificate Rate is to be calculated on the basis of the actual number of days elapsed and a 360-day year, 360 divided by the actual number of days from and including the immediately preceding
Interest Payment Date (or, in the case of the first Interest Payment Date, from and including the Series Closing Date) to but excluding the current Interest Payment Date or (y) if the relevant Certificate Rate is to be calculated on the basis
of a 360-day year of twelve 30-day months, twelve divided by the number of Distribution Dates from and including the preceding Interest Payment Date to but excluding the current Interest Payment Date (or, in the case of the first Interest Payment
Date, 360 divided by the number of days from and including the Series Closing Date to but excluding the 15th day of the month in which current Interest Payment Date occurs, 

  

 3 








 
assuming 30-day months); provided, that, if an increase in the Series Investor Interest has been made pursuant to Section 31 on or prior to such
Interest Payment Date but during the calendar month in which such Interest Payment Date occurred, the Class Invested Amount for each Class for such Interest Payment Date shall be deemed to exclude the portion of the Class Invested Amount represented
by Investor Certificates issued in connection with such increase and such Investor Certificates shall only bear interest from such Interest Payment Date; and provided, further, that if an increase in the Series Investor Interest has been made
pursuant to Section 31 during the related Interest Accrual Period but prior to the calendar month in which such Interest Payment Date occurred, any Investor Certificates so issued shall bear interest from the prior Interest Payment Date (or, in
the case of the first Interest Payment Date, from the Series Closing Date). 
 “Certificate Principal” shall mean, with
respect to each Class, the principal payable in respect of such Class of Investor Certificates. 
 “Certificate Rate,” with
respect to any Class or Subclass, shall mean the certificate rate set forth in the Series Term Sheet with respect to such Class or Subclass, as such rate may be adjusted as of the beginning of each Interest Accrual Period, if applicable;
provided, however, that the Certificate Rate for any Class or Subclass that does not have a fixed Certificate Rate shall not exceed the Class Cap Rate or Class Maximum Rate, as applicable, for such Class or Subclass; and provided,
further, that any interest on the Investor Certificates (including any interest accrued with respect to any Class Deficiency Amount) shall be payable or distributed to the Investor Certificateholders only to the extent permitted by applicable
law. 
 “Class A Cash Collateral Credit Enhancement” shall mean Credit Enhancement available in the Credit Enhancement
Account for the benefit of the Class A Investor Certificates. 
 “Class Alternative Deficiency Amount” shall mean, with
respect to each Class, on any Payment Date, the Class Deficiency Amount that would have been calculated for such Class on such Payment Date if the aggregate unreimbursed Investor Losses on such Payment Date equaled zero. 
 “Class B Available Collections” shall mean, if there is a Subordinated Class with respect to Class A, with respect to any
Distribution Date, an amount equal to the sum of (i) Class B Available Finance Charge Collections for such Distribution Date and (ii) Class B Principal Collections for such Distribution Date. 
 “Class B Available Finance Charge Collections” shall mean, if there is a Subordinate Class with respect to Class A, with respect to
any Distribution Date, an amount equal to the sum of Class B Finance Charge Collections, Class B Investment Income, if applicable, and Class B Interchange in each case for the related Due Period (less Class B Excess Servicing). 
 “Class Cap Rate,” if applicable, shall mean, with respect to a Class or Subclass that does not have a fixed or maximum Certificate Rate,
the rate that is specified as such in the Series Term Sheet and in the Class Interest Rate Cap with respect to such Class or Subclass. 
  

 4 








 “Class Charge-Off Reimbursement Amount” shall mean, with respect to any Class with
respect to any Distribution Date, the total amount by which the Class Cumulative Investor Charged-Off Amount for such Class is reduced on such Distribution Date pursuant to Section 9. 
 “Class Cumulative Investor Charged-Off Amount” with respect to each Class for any Distribution Date, shall mean the sum of the Class
Investor Charged-Off Amounts for such Class for all preceding Due Periods that have not been reimbursed pursuant to Section 9 prior to such Distribution Date, plus the Class Investor Charged-Off Amount for such Class for the Due Period
related to such Distribution Date, as adjusted pursuant to Section 9 on such Distribution Date. The Class Cumulative Investor Charged-Off Amount with respect to each Class initially shall be zero. 
 “Class Deficiency Amount” shall mean, with respect to each Class, on any Payment Date, the amount, if any, by which (a) the sum of
(i) Certificate Interest for such Class accrued since the immediately preceding Payment Date, (ii) if, since the immediately preceding Payment Date and prior to the current Payment Date, a Reimbursed Loss Event has occurred, the sum of
(A) the Reimbursed Loss Interest for each previous Distribution Date since the last Distribution Date on which Investor Losses for such Class equaled zero and (B) the Reimbursed Loss Interest Gross-up Amount for each previous Distribution
Date since the last Distribution Date on which the aggregate amount of unreimbursed Investor Losses for such Class equaled zero, (iii) the Class Deficiency Amount on the immediately preceding Payment Date, and (iv) the Class Deficiency
Amount on the immediately preceding Payment Date multiplied by the product of (A) a fraction the numerator of which is the weighted average of the Certificate Rates or of the Class Weighted Average Certificate Rates, as applicable, for such
Class for the relevant Due Periods and the denominator of which is (x) if the relevant Certificate Rate is to be calculated on the basis of the actual number of days elapsed and a 360-day year, 360 divided by the actual number of days from and
including the immediately preceding Distribution Date to but excluding the current Distribution Date or (y) if the relevant Certificate Rate is to be calculated on the basis of a 360-day year of twelve 30-day months, twelve and (B) the
number of Distribution Dates from and including the preceding Payment Date to but excluding the current Payment Date exceeds (b) the amount deposited since the immediately preceding Payment Date into the Series Interest Funding Account pursuant
to Section 10(a)(2)(A). 
 “Class Excess Servicing” shall mean, with respect to each Class, on any Distribution Date,
the positive difference, if any, between (i) the sum of Class Finance Charge Collections for the related Due Period, Class Investment Income for the related Due Period, if any, and Class Interchange for the related Due Period, if any, and
(ii) the Class Required Amount. 
 “Class Expected Final Payment Date” with respect to each Class, if applicable, shall
mean the date designated as such in the Series Term Sheet. 
 “Class Final Maturity Date” with respect to each Class, if
applicable, shall mean the date designated as such in the Series Term Sheet. 
  

 5 








 “Class Finance Charge Collections” shall mean, with respect to any Class, with respect
to any day or any Distribution Date or Trust Distribution Date, as applicable, an amount equal to the product of (x) the Class Percentage with respect to Finance Charge Collections for the related Distribution Date and (y) the amount of
Finance Charge Collections for such day or for the related Due Period, as applicable; provided, however, that Class Finance Charge Collections for each Class shall be increased by the lesser of (i) the amount of Class Investment
Shortfall for such Class and (ii) an amount equal to the product of the total amount of Finance Charge Collections otherwise allocable to Discover Bank on behalf of the Holder of the Seller Certificate for the related Due Period and a fraction
the numerator of which is the Class Invested Amount for such Class and the denominator of which is the Aggregate Invested Amount; and provided, further, that notwithstanding the foregoing, Class Finance Charge Collections for each Class shall
not, with respect to any such day, Distribution Date or Trust Distribution Date during the Accumulation Period or the Early Accumulation Period, as applicable, exceed the amount that would be available if the Class Percentage with respect thereto
were the percentage equivalent of a fraction the numerator of which is the amount of the Class Investor Interest on the last day of the Due Period prior to the commencement of the Accumulation Period or the Early Accumulation Period, and the
denominator of which is the greater of (i) the amount of Principal Receivables in the Trust on the first day of the related Due Period and (ii) the sum of the numerators used in calculating the components of the Series Percentage with
respect to Finance Charge Collections for each Series then outstanding (including the Series established hereby) as of such day, Distribution Date or Trust Distribution Date, as applicable. 
 “Class Initial Investor Interest” shall mean, with respect to each Class, the aggregate face amount of Investor Certificates of such
Class as specified in the Series Term Sheet. 
 “Class Interchange” shall mean, with respect to any Class, with respect to
any Distribution Date or Trust Distribution Date, as applicable, an amount equal to the product of (x) the Class Percentage with respect to Interchange for the related Distribution Date and (y) Interchange for the related Due Period.

 “Class Interest Rate Cap,” if applicable, shall mean, with respect to a Class or Subclass that does not have a fixed or
maximum Certificate Rate, the interest rate cap agreement or other interest rate protection for the benefit of the Investor Certificateholders of such Class or Subclass, dated on or before the Series Closing Date, between the Trustee, acting on
behalf of the Trust, and the Interest Rate Cap Provider, or any Replacement Interest Rate Cap or Qualified Substitute Cap Arrangement. 
 “Class Interest Rate Cap Payment” shall mean, with respect to a Class or Subclass that does not have a fixed or maximum Certificate Rate, with respect to any Interest Payment Date, any payment required to be made on such
Interest Payment Date by the Interest Rate Cap Provider with respect to the Class Interest Rate Cap for such Class or Subclass. 
 “Class Interest Rate Swap,” if applicable, shall mean, with respect to a Class or Subclass, the interest rate swap agreement or other interest rate protection agreement with respect to any Class or Subclass, dated on the
Series Closing Date, between the Trust and the Interest Rate Swap Counterparty, and any replacement or successor interest rate swap agreement or interest rate protection agreement. 
  

 6 








 “Class Invested Amount” shall mean, with respect to any Class for any Distribution Date,
an amount equal to the Class Initial Investor Interest minus the sum of (a) the aggregate amount of payments of Certificate Principal paid to such Class of Investor Certificateholders, in each case prior to such Distribution Date,
(b) the aggregate amount of Investor Losses of such Class not reimbursed prior to such Distribution Date and (c) the aggregate amount of losses of principal on investments of funds on deposit for the benefit of such Class in the Series
Principal Funding Account, if applicable. 
 “Class Investment Income” shall mean, with respect to any Class, income from
the investment of funds on deposit in the Series Principal Funding Account for the benefit of such Class less Excess Income. 
 “Class Investment Shortfall” with respect to each Class with respect to any Distribution Date during the Accumulation Period or the Early Accumulation Period, if applicable, shall mean an amount equal to the positive
difference, if any, between (i) one-twelfth of the product of (a) (x) with respect to each Class that has no Subclasses, the Certificate Rate, or (y) with respect to each Class that has two or more Subclasses, the Class Weighted
Average Certificate Rate, in each case for the related Due Period, and (b) the amount on deposit in the Series Principal Funding Account for the benefit of such Class as of the end of the previous Distribution Date and (ii) Class
Investment Income for the related Due Period. 
 “Class Investor Charged-Off Amount” shall mean, with respect to each Class
for any Distribution Date, an amount equal to the sum of (i) the product of (a) the Charged-Off Amount for such Distribution Date and (b) the Class Percentage with respect to the Charged-Off Amount and (ii) if there is a
Subordinate Class with respect to Class A, with respect to Class B only, the sum of (a) the positive difference, if any, between (x) the Class B Subordinated Payment and (y) the amount of Class B Available Finance Charge
Collections for the related Due Period and (b) the amount by which the Class A Cumulative Investor Charged-Off Amount is reduced by way of a reallocation of Class B Investor Interest pursuant to Section 9. 
 “Class Investor Interest” shall mean, with respect to any Class for any Distribution Date, an amount equal to the Class Invested Amount
for such Class for such Distribution Date minus, if applicable, the aggregate amount on deposit in the Series Principal Funding Account for the benefit of such Class in respect of Principal Collections. 
 “Class Maximum Rate,” if applicable, shall have the meaning set forth in the Series Term Sheet with respect to any Class or Subclass.

 “Class Modified Required Amount” with respect to any Class on any Distribution Date, shall mean the Class Required Amount
for such Distribution Date minus the sum of all accrued but unpaid Class Monthly Servicing Fees. 
 “Class Monthly Deficiency
Amount” with respect to any Class on any Distribution Date, shall have the meaning set forth in Section 10(a)(2)(A). The Class Monthly Deficiency Amount for each Class initially shall be zero. 
  

 7 








 “Class Monthly Servicing Fee” with respect to any Class for any Distribution Date, shall
mean an amount equal to the product of (x) a fraction the numerator of which shall be the Class Investor Interest and the denominator of which shall be the Series Investor Interest, in each case on the first day of the related Due Period and
(y) the amount of the Investor Servicing Fee for the related Due Period. For purposes of this definition, the Class Investor Interest on the first day of any Due Period in which the Series Closing Date or an increase in the Series Investor
Interest pursuant to Section 31 has occurred shall include the Class Investor Interest of all Investor Certificates issued during such Due Period. 
 “Class Percentage” shall mean, with respect to any Class with respect to any Distribution Date or any Trust Distribution Date, as applicable: 
 (a) when used with respect to the Charged-Off Amount, the percentage equivalent of a fraction the numerator of which shall be the amount
of the Class Investor Interest and the denominator of which shall be the greater of (i) the amount of Principal Receivables in the Trust and (ii) the Aggregate Investor Interest, in each case on the first day of the related Due Period; or

 (b) when used with respect to Principal Collections prior to the occurrence of a Fixed Principal Allocation Event, the
percentage equivalent of a fraction the numerator of which shall be the amount of the Class Investor Interest on the first day of the related Due Period and the denominator of which shall be the greater of (i) the amount of Principal
Receivables in the Trust on the first day of the related Due Period and (ii) the sum of the numerators used in calculating the components of the Series Percentage with respect to Principal Collections for each Series then outstanding (including
the Series established hereby) as of such Distribution Date or Trust Distribution Date, as applicable; or 
 (c) when used
with respect to Principal Collections on and after the occurrence of a Fixed Principal Allocation Event, the percentage equivalent of a fraction, the numerator of which shall be the amount of the Class Investor Interest on the last day of the Due
Period prior to the occurrence of a Fixed Principal Allocation Event and the denominator of which shall be the greater of (i) the amount of Principal Receivables in the Trust on the first day of the related Due Period and (ii) the sum of
the numerators used in calculating the components of the Series Percentage with respect to Principal Collections for each Series then outstanding (including the Series established hereby) as of such Distribution Date or Trust Distribution Date, as
applicable; provided, however, that from and after the Fully Funded Date, if any, the Class Percentage with respect to Principal Collections will equal zero; or 
 (d) when used with respect to Finance Charge Collections during the Revolving Period and the Accumulation Period or the Controlled
Liquidation Period, as applicable, and provided that an Effective Alternative Credit Support Election has been made, during the Early Accumulation Period or the Amortization Period, the percentage equivalent of a fraction the numerator of 

  

 8 








 
which shall be the amount of the Class Investor Interest on the first day of the related Due Period and the denominator of which shall be the greater of
(i) the amount of Principal Receivables in the Trust on the first day of the related Due Period and (ii) the sum of the numerators used in calculating the components of the Series Percentage with respect to Finance Charge Collections for
each Series then outstanding (including the Series established hereby) as of such Distribution Date or Trust Distribution Date, as applicable; provided, however, that from and after the Fully Funded Date, if any, the Class Percentage with
respect to Finance Charge Collections will equal zero; 
 (e) when used with respect to Finance Charge Collections during the
Early Accumulation Period or the Amortization Period, provided that an Effective Alternative Credit Support Election has not been made, the percentage equivalent of a fraction the numerator of which shall be the amount of the Class Investor Interest
on the last day of the Due Period prior to the occurrence of an Early Accumulation Event or an Amortization Event, and the denominator of which shall be the greater of (i) the amount of Principal Receivables in the Trust on the first day of the
related Due Period and (ii) the sum of the numerators used in calculating the components of the Series Percentage with respect to Finance Charge Collections for each Series then outstanding (including the Series established hereby) as of such
Distribution Date or Trust Distribution Date, as applicable; provided, however, that from and after the Fully Funded Date, if any, the Class Percentage with respect to Finance Charge Collections will equal zero; or 
 (f) when used with respect to Interchange, the percentage equivalent of a fraction the numerator of which shall be the amount of Class
Investor Interest and the denominator of which shall be the greater of (i) the amount of Principal Receivables in the Trust and (ii) the Aggregate Investor Interest, in each case on the first day of the related Due Period. 
 For purposes of this definition, the Class Investor Interest as of the first day of any Due Period in which the Series Closing Date has occurred or an
increase in the Series Investor Interest has been made pursuant to Section 31 shall include the Class Investor Interest of all Investor Certificates issued during or prior to such Due Period. 
 “Class Principal Collections” shall mean, with respect to any Class with respect to any day or any Distribution Date or Trust
Distribution Date, as applicable, an amount equal to the product of (x) the Class Percentage with respect to Principal Collections for the related Distribution Date and (y) the amount of Principal Collections for such day or for the
related Due Period, as applicable. 
 “Class Required Amount” with respect to any Class on any Distribution Date, shall mean
the sum of (i) the product of (a) the Class Invested Amount with respect to such Class for such Distribution Date and (b) a fraction, the numerator of which is the Certificate Rate for such Class, and the denominator of which is
(x) if the relevant Certificate Rate is to be calculated on the basis 

  

 9 








 
of the actual number of days elapsed and a 360-day year, 360 divided by the actual number of days from and including the immediately preceding Distribution
Date (or in the case of the first Distribution Date, from and including the Series Closing Date) to but excluding the current Distribution Date or (y) if the relevant Certificate Rate is to be calculated on the basis of a 360-day year of twelve
30-day months, twelve (or in the case of the first Distribution Date, 360 divided by the number of days from and including the Series Closing Date to but excluding the 15th day of the month in which the current Interest Payment Date occurs, assuming
each month has 30 days), (ii) the Class Monthly Deficiency Amount on the immediately preceding Distribution Date, (iii) the Class Deficiency Amount on the immediately preceding Payment Date multiplied by a fraction the numerator of which
is the weighted average of the Certificate Rates or of the Class Weighted Average Certificate Rates, as applicable, for such Class for each Due Period subsequent to the immediately preceding Payment Date plus 2.00% per annum and the denominator
of which is (x) if the relevant Certificate Rate is to be calculated on the basis of the actual number of days elapsed and a 360-day year, 360 divided by the actual number of days from and including the immediately preceding Distribution Date
to but excluding the current Distribution Date or (y) if the relevant Certificate Rate is to be calculated on the basis of a 360-day year of twelve 30-day months, twelve, (iv) if on the immediately preceding Distribution Date a Reimbursed
Loss Event occurred, the sum of (A) the Reimbursed Loss Interest for each previous Distribution Date since the last Distribution Date on which the aggregate amount of unreimbursed Investor Losses for such Class equaled zero, (B) the
Reimbursed Loss Interest Gross-up Amount for each previous Distribution Date since the last Distribution Date on which the aggregate amount of unreimbursed Investor Losses for such Class equaled zero and (C) for any Distribution Date following
the Distribution Date immediately following the Reimbursed Loss Event to and including the next Payment Date, the Reimbursed Loss Interest Gross-up Amount for such Distribution Date and (v) the sum of all accrued but unpaid Class Monthly
Servicing Fees; provided, that, if an increase in the Series Investor Interest has been made pursuant to Section 31 on or prior to such Distribution Date but during the calendar month in which such Distribution Date occurred, the Class
Invested Amount for each Class for such Distribution Date shall be deemed to exclude the portion of the Class Invested Amount represented by Investor Certificates issued in connection with such increase; and provided, further, that if an
increase in the Series Investor Interest has been made pursuant to Section 31 during the prior calendar month, the amount in clause (i) above shall be deemed to include the portion of the Class Invested Amount represented by Investor
Certificates issued as part of such increase as if such increase had taken effect on such prior Distribution Date (or, in the case of the first Distribution Date, on the Series Closing Date). 
 “Class Required Amount Shortfall” with respect to any Class on any Distribution Date, shall have the meaning set forth in
Section 9. 
 “Class Subordinated Payment” shall mean, if there is a Subordinate Class with respect to Class A,
with respect to any Distribution Date, the amount, if any, withheld from Class B Available Collections and paid to or for the benefit of the Class A Certificateholders pursuant to Section 9 on such Distribution Date. 
  

 10 








 “Class Weighted Average Certificate Rate,” if applicable, shall mean, for any Class
composed of two or more Subclasses, for any Distribution Date, the percentage equivalent of a fraction the numerator of which is the sum of, for each Subclass of such Class, the product of the Class Invested Amount for such Subclass and the
Certificate Rate for such Subclass for such Distribution Date, and the denominator of which is the Class Invested Amount for such Class. 
 “Commercial Paper Determination Date,” if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Commercial Paper Rate,” if applicable, shall mean, with respect to any Commercial Paper Determination Date, the rate equal to the Money Market Yield on such Commercial Paper Determination Date of the rate for commercial
paper having a maturity of 30 days as published by the Board of Governors of the Federal Reserve System in “Statistical Release H.15 (519), Selected Interest Rates,” or any successor publication, under the heading “Commercial
Paper.” In the event that such rate is not published on such date, then the Commercial Paper Rate will be the Money Market Yield on such date of the rate for Commercial Paper having a maturity of 30 days as published by the Federal Reserve Bank
of New York in the daily statistical release “Composite 3:30 p.m. Quotations for U.S. Government Securities” (“Composite Quotations”) under the heading “Commercial Paper.” If on such date the rate for commercial paper
is not yet published in either H.15 (519) or Composite Quotations, the Commercial Paper Rate for such date shall be calculated by the Trustee and shall be the Money Market Yield of the arithmetic mean (rounded to the nearest one-hundredth of a
percent, with five hundred one-thousandths of a percent rounded upward) of the offered rates, as of 11:00 a.m., New York City time, of three leading dealers of commercial paper in New York City selected by the Trustee on such date, for commercial
paper having a maturity of 30 days placed for an industrial issuer whose bond rating is “AA” or the equivalent, from either Rating Agency. In the event that such rates are not available on such date, then the Commercial Paper Rate shall be
the Money Market Yield of the rate for commercial paper so provided in a comparable source. The Commercial Paper Rate shall be determined by the Trustee. 
 “Controlled Accumulation Amount,” if applicable, with respect to any Distribution Date related to the Accumulation Period shall mean an amount equal to the sum of the Accumulation Amount and any
existing Deficit Accumulation Amount; provided, however, that the Controlled Accumulation Amount shall not be less than zero and through the Class Expected Final Payment Date or Class Final Maturity Date, as applicable, with respect to
each Class in turn, beginning with Class A, shall not exceed an amount equal to the Class Investor Interest for such Class. 
 “Controlled Liquidation Amount,” if applicable, with respect to any Distribution Date related to the Controlled Liquidation Period, the Accumulation Period or the Early Accumulation Period shall mean, if applicable, an
amount equal to the sum of the Liquidation Amount and any existing Deficit Liquidation Amount; provided, however, that the Controlled Liquidation Amount shall not be less than zero and shall not exceed an amount equal to the Series
Invested Amount. 
 “Controlled Liquidation Period,” if applicable, shall have the meaning set forth in the Series Term
Sheet. 
  

 11 








 “Credit Enhancement” shall mean any credit enhancement obtained by the Master Servicer
in accordance with Section 11. 
 “Credit Enhancement Account,” if applicable, shall have the meaning set forth in
Section 8. 
 “Credit Enhancement Agreement” shall mean the Agreement among the Sellers, the Master Servicer, the
Trustee and the Credit Enhancement Provider with respect to the Credit Enhancement. 
 “Credit Enhancement Drawing” shall
mean any drawing made under the Credit Enhancement. 
 “Credit Enhancement Fee” shall mean, on any Distribution Date, the
sum of all fees and interest payable to the Credit Enhancement Provider or the Trustee as administrator of the Credit Enhancement for the related Due Period pursuant to the Credit Enhancement Agreement. 
 “Credit Enhancement Provider” shall have the meaning set forth in the Series Term Sheet. 
 “Deficit Accumulation Amount” shall mean, with respect to the first Distribution Date of the Accumulation Period, zero, and with respect
to any other Distribution Date of the Accumulation Period, the amount, if any, by which the amount deposited into the Series Principal Funding Account on the preceding Distribution Date is less than the Controlled Accumulation Amount for such
preceding Distribution Date. 
 “Deficit Liquidation Amount” shall mean, with respect to the first Distribution Date
relating to the Due Period commencing on the Principal Commencement Date, zero, and with respect to any subsequent Distribution Date, the amount, if any, by which the amount of Certificate Principal paid to the Investor Certificateholders on the
preceding Distribution Date is less than the Controlled Liquidation Amount for such preceding Distribution Date. 
 “Distribution
Date” shall have the meaning set forth in the Series Term Sheet. 
 “Dollars” or “U.S. $” or
“$” shall mean the lawful currency of the United States of America. 
 “Drawing Date” shall mean the first
Business Day preceding each Distribution Date. 
 “Early Accumulation Commencement Date,” if applicable, shall mean the date
on which an Early Accumulation Event is deemed to occur. 
 “Early Accumulation Event,” if applicable, shall mean any event
specified in Section 21 hereof. 
 “Early Accumulation Period,” if applicable, shall have the meaning set forth in the
Series Term Sheet. 
  

 12 








 “Effective Alternative Credit Support Election” shall have the meaning specified in
Section 12. 
 “Estimated Investment Shortfall,” if applicable, shall have the meaning set forth in the Series Term
Sheet. 
 “Estimated Principal Distribution Amount,” if applicable, shall mean, with respect to any date of determination
during the Early Accumulation Period, an amount equal to the Series Principal Collections for the prior Distribution Date; provided, however, that such amount shall not exceed the Series Investor Interest as of such prior Distribution Date.

 “Estimated Yield,” if applicable, shall have the meaning specified in the Series Term Sheet. 
 “Excess Income” on any Distribution Date shall mean an amount equal to the excess, if any, of (a) interest and other income (net of
investment expenses) on such Distribution Date with respect to the funds on deposit in the Series Principal Funding Account during the related Interest Period over (b) the amount on deposit in the Series Principal Funding Account in respect of
Certificate Principal during such Interest Period multiplied by a fraction, the numerator of which is the Certificate Rate or the Class Weighted Average Certificate Rate, as applicable, for the Class for whose benefit the amounts on deposit in the
Series Principal Funding Account are held during such Interest Period and the denominator of which is (x) if the relevant Certificate Rate is to be calculated on the basis of the actual number of days elapsed and a 360-day year, 360 divided by
the actual number of days from and including the immediately preceding Distribution Date to but excluding the current Distribution Date or (y) if the relevant Certificate Rate is to be calculated on the basis of a 360-day year of twelve 30-day
months, twelve. 
 “Fixed Principal Allocation Event” shall mean the earliest of (a) the beginning of the Due Period
immediately following the Due Period related to the first Distribution Date during the Controlled Liquidation Period or the Accumulation Period, as applicable, with respect to the Series established hereby on which the Series Available Principal
Amount is less than zero; (b) the date on which an Early Accumulation Event or an Amortization Event with respect to the Series established hereby occurs; and (c) a date selected by the Master Servicer, if any. If the Master Servicer
establishes a date for a Fixed Principal Allocation Event pursuant to clause (c) of the preceding sentence, the Master Servicer shall provide notification of such date to Discover Bank on behalf of the Holder of the Seller Certificate, the
Trustee, the Credit Enhancement Provider and the Rating Agencies no later than two Business Days prior to such date. 
 “Fully Funded
Date,” if applicable, shall mean the first Distribution Date on which the amount of funds on deposit in the Series Principal Funding Account (after giving effect to all deposits made on such date pursuant to Section 9) equals the
Series Invested Amount for such Distribution Date (prior to any payments of principal on such date pursuant to Section 10); provided, however, that the Fully Funded Date shall only occur during the Early Accumulation Period. 

 

 13 








 “Funded Credit Enhancement” shall mean any Credit Enhancement that consists of funds on
deposit in one or more segregated trust accounts in the corporate trust department of an office or branch of the Trustee or a Qualified Institution for the benefit of the Investor Certificateholders of the Series established hereby, including,
without limitation, a reserve account or a cash collateral account. 
 “Group Available Principal Amount” shall mean, with
respect to each Distribution Date, the amount remaining on deposit in the Group Principal Collections Reallocation Account on such Distribution Date after all withdrawals have been made from such account for the benefit of any Series in the same
Group as the Series established hereby (including the Series established hereby), but before such amount is withdrawn from the Group Principal Collections Reallocation Account and deposited into the Collections Account pursuant to
Section 9(b)(39)). 
 “Group Buffer Amount,” if applicable, shall have the meaning set forth in the Series Term Sheet.

 “Group Excess Spread” shall mean, for any Distribution Date, the sum of the Series Excess Spreads for each Series
(including the Series established hereby) that is a member of the same Group as the Series established hereby, in each case for such Distribution Date. 
 “Group Finance Charge Collections Reallocation Account” shall have the meaning specified in Section 8. 
 “Group Interchange Reallocation Account” shall have the meaning specified in Section 8. 
 “Group Principal Allocation Event” shall mean the first Distribution Date, if any, on which (i) the sum of the amount of Series Principal Collections is less than (ii) the Group Required Principal Amount for such
Distribution Date. 
 “Group Principal Collections Reallocation Account” shall have the meaning specified in Section 8.

 “Group Required Principal Amount” shall mean, with respect to the Group of which the Series established hereby is a
member, for any Distribution Date, the Series Required Principal Amount for such Distribution Date plus, for each Series that is a member of such Group, the Series Required Principal Amount for such Series for such Distribution Date.

 “Increased Credit Enhancement Amount” shall have the meaning specified in Section 31. 
 “Increased Issuance Subordinated Amount” shall mean an amount equal to the product of (x) the face amount of Investor Certificates
being issued in an increase in the Series Investor Interest pursuant to Section 31 and (y) the Initial Subordinated Amount (plus, following a Supplemental Credit Enhancement Event, the Supplemental Subordinated Amount, plus, following an
Effective Alternative Credit Support Election, the Additional Subordinated Amount, as applicable) divided by the Series Initial Investor Interest (without giving effect to such increase). 
  

 14 








 “Initial Credit Enhancement” shall mean the Credit Enhancement first obtained by the
Master Servicer pursuant to Section 11. 
 “Initial Subordinated Amount,” if applicable, shall have the meaning set
forth in the Series Term Sheet. 
 “Interchange Series” shall mean each Series that indicates in its applicable Series Term
Sheet that it is an Interchange Series; provided, however, (i) to and including the Interchange Series Trigger Date, for purposes of any reallocations to be made to or from the Group Interchange Reallocations Account pursuant to this
Series Supplement or the Series Supplement for any other Series, related definitions, and provisions determining the Group Excess Spread, the Series Excess Spread and the Interchange Subgroup Excess Spread, this Series shall be considered an
Interchange Series; and (ii) on all dates following the Interchange Series Trigger Date, this Series shall be considered an Interchange Series for all purposes. 
 “Interchange Series Shortfall” shall mean, for any Interchange Series (including this Series), the sum of (i) the Class Required Amount Shortfall for each Class,
(ii) the Class Cumulative Investor Charged-Off Amount for each Class and (iii) the amount by which the Total Available Credit Enhancement Amount is less than the Total Maximum Credit Enhancement Amount, in each case after giving effect to
all withdrawals from the Group Finance Charge Collections Reallocation Account pursuant to Section 9 hereof. 
 “Interchange Series Trigger Date” shall have the meaning set forth in the Series Term Sheet. 
 “Interchange Subgroup Allocable Group Excess Spread” shall mean, if the Group Excess Spread is greater than or equal to zero, the product of the Group Excess Spread and the Interchange Subgroup Excess Allocation Percentage;
and if the Group Excess Spread is less than zero, the product of the Group Excess Spread and the Interchange Subgroup Shortfall Allocation Percentage. 
 “Interchange Subgroup Buffer Amount” if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Interchange Subgroup Excess Allocation Percentage” shall mean a ratio, the numerator of which is the sum of the Series Investor Interest for each Interchange Series that is a member of the same Group
as the Series established hereby (including the Series established hereby); and the denominator of which is the sum of the Series Investor Interests for each Series that is a member of the same Group as the Series established hereby (including each
Interchange Series and the Series established hereby). 
 “Interchange Subgroup Excess Spread” shall be equal to the Group
Excess Spread. 
 “Interchange Subgroup Shortfall Allocation Percentage” shall mean a ratio, the numerator of which is the
sum of the Series Excess Spread for each Interchange Series that is a member of the same Group as the Series established hereby (including the Series established hereby) for which the Series Excess Spread is less than zero; and the denominator of
which is the sum of the Series Excess Spread for each Series that is a member of the same Group as the Series established hereby (including each Interchange Series and the Series established hereby) for which the Series Excess Spread is less than
zero. 
  

 15 








 “Interest Accrual Period” shall mean, with respect to any Interest Payment Date, the
period from and including the Interest Payment Date immediately preceding such Interest Payment Date (or, in the case of the first Interest Payment Date, from and including the Series Closing Date) to but excluding such Interest Payment Date.

 “Interest Calculation Date,” if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Interest Payment Date” shall mean each date designated as such in the Series Term Sheet. 
 “Interest Period” shall mean each period from and including a given Distribution Date to but excluding the next following Distribution
Date commencing with the earlier to occur of (i) the first Distribution Date of the Early Accumulation Period or (ii) the first Distribution Date of the Accumulation Period. 
 “Interest Rate Cap Provider,” if any, shall mean the entity listed as the Interest Rate Cap Provider in the Series Term Sheet, in its
capacity as obligor under the Class Interest Rate Caps, or if any Replacement Class Interest Rate Caps or Qualified Substitute Cap Arrangements are obtained pursuant to Section 15, the obligor with respect to such Replacement Class Interest
Rate Caps or Qualified Substitute Cap Arrangements. 
 “Interest Rate Swap Account” shall have the meaning specified in
Section 8. 
 “Interest Rate Swap Counterparty,” if applicable, shall have the meaning set forth in the Series Term
Sheet. 
 “Investor Accounts” shall mean, in addition to Investor Accounts established pursuant to the Pooling and Servicing
Agreement, the Series Collections Account, the Series Principal Collections Account, the Series Principal Funding Account, the Series Interest Funding Account, the Series Distribution Account, the Group Finance Charge Collections Reallocation
Account, the Group Principal Collections Reallocation Account and the Group Interchange Reallocation Account. 
 “Investor Charge-Off
Loss” shall have the meaning set forth in Section 13(b). 
 “Investor Loss” with respect to each Class, shall
mean (i) the amount of any reduction in the Class Invested Amount with respect to such Class pursuant to Section 13(b), (ii) in the event the Receivables are sold pursuant to Section 12.01(b) of the Pooling and Servicing
Agreement, the amount, if any, by which the Class Investor Interest (determined immediately prior to such sale) exceeds the product of (x) a fraction, the numerator of which is the Class Investor Interest and the denominator of which is the
Aggregate Investor Interest and (y) the net proceeds of such sale and (iii) in the event Receivables are sold pursuant to Section 12.02(c) of the Pooling and Servicing Agreement, the amount, if any, by which the Class Investor
Interest (determined immediately prior to such sale) exceeds the product of (x) a fraction, the numerator of which is the Class Investor Interest and the denominator of which is the Series Investor Interest and (y) the net proceeds of such
sale. 
  

 16 








 “Investor Servicing Fee” shall mean, with respect to any Distribution Date, an amount
equal to the product of the Investor Servicing Fee Percentage and the Series Investor Interest on the first day of the Due Period related to such Distribution Date (or in the case of the first Distribution Date for the Series established hereby, the
Series Initial Investor Interest). For purposes of this definition, the Series Investor Interest on the first day of any Due Period in which an increase in the Series Investor Interest pursuant to Section 31 has occurred shall include the
Series Investor Interest of all Investor Certificates issued during such Due Period. 
 “Investor Servicing Fee Percentage”
shall mean the percentage identified as such in the Series Term Sheet. 
 “LIBOR,” if applicable, shall mean, with respect
to any LIBOR Determination Date, the rate for deposits in United States dollars with a duration comparable to the relevant Interest Accrual Period which appears on Reuters Screen LIBOR01 Page as of 11:00 a.m., London time, on such day. If such rate
does not appear on Reuters Screen LIBOR01 Page, the rate will be determined by the Trustee on the basis of the rates at which deposits in United States dollars are offered by major banks in the London interbank market, selected by the Trustee, at
approximately 11:00 a.m., London time, on such day to prime banks in the London interbank market with a duration comparable to the relevant Interest Accrual Period commencing on that day. The Trustee will request the principal London office of at
least four banks to provide a quotation of its rate. If at least two such quotations are provided, the rate will be the arithmetic mean of the quotations. If fewer than two quotations are provided as requested, the rate for that day will be the
arithmetic mean of the rates quoted by four major banks in New York City, selected by the Trustee, at approximately 11:00 a.m., New York City time, on that day for loans in United States dollars to leading European banks with a duration comparable
to the relevant Interest Accrual Period commencing on that day. 
 “LIBOR Business Day,” if applicable, shall mean a day
other than a Saturday or a Sunday on which banking institutions in the City of London, England and in New York, New York are not required or authorized by law to be closed. 
 “LIBOR Determination Date,” if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Liquidation Amount,” if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Maximum Class A Credit Enhancement Amount,” if applicable, shall have the meaning set forth in the Series Term Sheet. 

“Maximum Class B Credit Enhancement Amount,” if applicable, shall have the meaning set forth in the Series Term Sheet. 
  

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 “Maximum Shared Credit Enhancement Amount,” if applicable, shall have the meaning set
forth in the Series Term Sheet. 
 “Money Market Yield” shall mean a yield (expressed as a percentage rounded to the nearest
one-hundredth of a percent, with five hundred one-thousandths of a percent rounded upwards) calculated in accordance with the following formula: 
 Money Market Yield     =     D x 360       x    100 
                                         
                              360 - (D x M) 
 where “D” refers to the per annum rate for commercial paper quoted on a bank discount basis and expressed as a decimal, and “M” refers to the actual
number of days in the related Interest Accrual Period. 
 “Monthly Amortization Rate,” if applicable, shall have the meaning
set forth in the Series Term Sheet. 
 “Monthly Swap Deposit,” if applicable, shall have the meaning set forth in the Series
Term Sheet. 
 “Net Swap Payment,” if applicable, shall mean, with respect to any Class that is subject to a Class Interest
Rate Swap, (x) on any Interest Payment Date prior to the early termination of the Class Interest Rate Swap, the positive difference, if any, between (i) the amount owed by the Trust to the Interest Rate Swap Counterparty under the Class
Interest Rate Swap on such Interest Payment Date and (ii) the amount owed by the Interest Rate Swap Counterparty to the Trust under the Class Interest Rate Swap on such Interest Payment Date, and (y) on any Distribution Date in any
calendar month following the calendar month in which an early termination of the Class Interest Rate Swap occurred, the unpaid portion of any termination payment owed by the Trust to the Interest Rate Swap Counterparty in accordance with the terms
of the Class Interest Rate Swap. 
 “Net Swap Receipt,” if applicable, shall mean, with respect to any Class that is subject
to a Class Interest Rate Swap, (x) on any Interest Payment Date prior to the early termination of the Class Interest Rate Swap, the positive difference, if any, between (i) the amount owed by the Interest Rate Swap Counterparty to the
Trust under the Class Interest Rate Swap on such Interest Payment Date and (ii) the amount owed by the Trust to the Interest Rate Swap Counterparty under the Class Interest Rate Swap on such Interest Payment Date, and (y) on any
Distribution Date following an early termination of the Class Interest Rate Swap, the amount of any termination payment paid by the Interest Rate Swap Counterparty on or prior to such Distribution Date and after the previous Distribution Date.

 “Non-U.S. Holder,” shall mean any person who, as to the United States, is a non-resident alien individual, a foreign
corporation, a foreign estate, a foreign trust or a foreign partnership, as such terms are defined in the Internal Revenue Code of 1986, as amended. 
 “Payment Date” shall mean any Interest Payment Date and any Class Expected Final Payment Date. 
  

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 “Portfolio Yield” shall mean, with respect to any Due Period, the annualized percentage
equivalent of a fraction, the numerator of which shall be the sum of (i) the amount of Finance Charge Collections received during such Due Period and (ii) the amount of Series Interchange for each Series then outstanding for such Due
Period, and the denominator of which shall be the total amount of Principal Receivables in the Trust as of the first day of such Due Period. 
 “Prepayment Calculation Table, “ if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Prepayment Determination Date, “ if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Principal Commencement Date” shall mean the date designated as such in the Series Term Sheet. 
 “Principal Distribution Amount” shall mean, with respect to any Distribution Date occurring in (i) the Accumulation Period, the Controlled Accumulation Amount, (ii) the Controlled Liquidation Period, the
Controlled Liquidation Amount, (iii) the Early Accumulation Period, the Series Investor Interest, or (iv) in the Amortization Period, the Series Investor Interest. 
 “Principal Distribution Amount Shortfall” with respect to any Distribution Date in the Accumulation Period, the Controlled Liquidation
Period, the Early Accumulation Period or the Amortization Period, as applicable, shall have the meaning set forth in Section 9. 
 “Principal Payment Date” shall mean, if applicable, each date designated as such in the Series Term Sheet. 
 “Qualified Credit Enhancement Provider” shall mean, (i) if the Credit Enhancement is not Funded Credit Enhancement, an institution that meets the Qualified Credit Enhancement Provider Rating Requirements established by
each Rating Agency, which requirements are set forth in the Series Term Sheet if the Initial Credit Enhancement is not Funded Credit Enhancement, or (ii) if the Initial Credit Enhancement is Funded Credit Enhancement, an institution that meets
the Qualified Credit Enhancement Provider Rating Requirements established by each Rating Agency, which requirements will be established by the Rating Agencies at the time, if any, that the Master Servicer elects to replace the Initial Credit
Enhancement with Credit Enhancement that is not Funded Credit Enhancement (or, in either case, such lesser requirements as the applicable Rating Agency shall allow); provided, however, that in the event the Master Servicer elects to obtain
Credit Enhancement that is not Funded Credit Enhancement and is unable after the exercise of its best efforts to obtain from a Qualified Credit Enhancement Provider as so defined such Credit Enhancement with respect to which the representations set
forth in Section 11(a) shall be true, the term “Qualified Credit Enhancement Provider” shall mean a Person who satisfies such requirements except that its long-term unsecured debt rating by any nationally recognized rating agency may
be lower than that set forth in such requirements, but shall not be lower than the highest credit rating of any Person who otherwise satisfies said requirements and from whom the Master Servicer is able to obtain such a Credit Enhancement.

  

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 “Qualified Substitute Cap Arrangement,” if any, shall have the meaning specified in
Section 15. 
 “Reimbursed Loss Event” shall mean, with respect to each Class for any Distribution Date, the occurrence
of the reimbursement of Investor Losses pursuant to Section 13(c) with respect to such Class on such Distribution Date such that the aggregate amount of unreimbursed Investor Losses for such Class is reduced to zero. 
 “Reimbursed Loss Interest” shall mean, for any Class for any Distribution Date, an amount equal to the product of (i) the aggregate
amount of Investor Losses that have not been reimbursed pursuant to Section 13(c) prior to the commencement of the related Due Period and (ii) a fraction the numerator of which is the Certificate Rate or the Class Weighted Average
Certificate Rate, as applicable, for such Class for the related Due Period and the denominator of which is (x) if the relevant Certificate Rate is to be calculated on the basis of the actual number of days elapsed and a 360-day year,
(A) if each Interest Payment Date is also a Distribution Date, 360 divided by the actual number of days from and including the immediately preceding Distribution Date to but excluding the current Distribution Date or (B) if each Interest
Payment Date is not also a Distribution Date, 360 divided by the actual number of days from and including the Interest Calculation Date in the preceding calendar month to but excluding the Interest Calculation Date following the current Distribution
Date or (y) if the relevant Certificate Rate is to be calculated on the basis of a 360-day year of twelve 30-day months, twelve. 
 “Reimbursed Loss Interest Gross-up Amount” shall mean, for any Class for any Distribution Date, an amount equal to the product of (i) the positive difference, if any, between the Class Alternative Deficiency Amount for
the immediately preceding Payment Date and the actual Class Deficiency Amount for the immediately preceding Payment Date and (ii) a fraction the numerator of which is the Certificate Rate or the Class Weighted Average Certificate Rate, as
applicable, for such Class for the related Due Period and the denominator of which is (x) if the relevant Certificate Rate is to be calculated on the basis of the actual number of days elapsed and a 360-day year, (A) if each Interest
Payment Date is also a Distribution Date, 360 divided by the actual number of days from and including the immediately preceding Distribution Date to but excluding the current Distribution Date or (B) if each Interest Payment Date is not also a
Distribution Date, 360 divided by the actual number of days from and including the Interest Calculation Date in the preceding calendar month to but excluding the Interest Calculation Date following the current Distribution Date or (y) if the
relevant Certificate Rate is to be calculated on the basis of a 360-day year of twelve 30-day months, twelve. 
 “Replacement Class
Interest Rate Cap,” if any, shall mean an interest rate cap agreement or other interest rate protection having substantially the same terms and conditions as the Class Interest Rate Cap that it replaces, and otherwise satisfying the
conditions set forth in Section 15. 
  

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 “Required Daily Deposit” shall mean, if applicable, with respect to each Servicer, an
amount equal to: 
  

	 	(a)	during the Revolving Period and the Accumulation Period or the Controlled Liquidation Period, as applicable, the sum of 

 (x)(1) during the Revolving Period, an amount equal to the sum of (i) the Class Finance Charge Collections for each Class for such day and
(ii) the amount of Class B Principal Collections for such day; minus the sum of all accrued but unfunded Class A Monthly Servicing Fees; or 
 (2) during the Accumulation Period or the Controlled Liquidation Period, as applicable, an amount equal to the sum of (i) the amount set forth in clause (1) above and (ii)(A) until the aggregate amount
deposited during such Due Period pursuant to this clause (ii) equals the Controlled Accumulation Amount or the Controlled Liquidation Amount, as applicable, for the related Distribution Date, the amount of Class A Principal Collections for
such day, and (B) thereafter, zero provided, however, that with respect to any day on which the Controlled Accumulation Amount or the Controlled Liquidation Amount, as applicable, for the related Distribution Date cannot be
determined, the aggregate amount to be deposited for such Due Period shall be the Controlled Accumulation Amount or the Controlled Liquidation Amount, as applicable, for the Distribution Date preceding the related Distribution Date; plus

 (y) the positive difference, if any, between 
 (1) the product of the Class A Percentage for the related Distribution Date with respect to Principal Collections and the amount of Principal Collections received during the Due Period through and including such
day and less any amounts deposited into the Collections Account during the Due Period through and including such day pursuant to clause (x)(2)(ii)(A) above or previously deposited during such Due Period pursuant to this clause (y) and

 (2) the positive difference, if any, between (i) an amount equal to (A) the aggregate amount of Principal
Receivables in the Trust as of such day multiplied by a fraction the numerator of which shall be the Series Initial Investor Interest and the denominator of which shall be sum of the Series Initial Investor Interest for each Series then outstanding
minus (B) the Series Investor Interest as of the end of the immediately preceding Due Period (after giving effect to payments of principal made or to be made on the related Distribution Date) and (ii) an amount equal to the positive
difference between the Series Minimum Principal Receivables Balance and the Series Investor Interest; provided, however, that any calculation under this paragraph (y) that results in a number less than zero shall be treated as zero; or

  

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	 	(b)	during the Early Accumulation Period and the Amortization Period, an amount equal to the sum of the Series Finance Charge Collections and the Series Principal Collections for the
Series established hereby for such day minus all accrued but unfunded Class A Monthly Servicing Fees; and 

 multiplied, in each
case, by a fraction the numerator of which shall be the aggregate amount of Principal Receivables in the Trust that are serviced by such Servicer and the denominator of which shall be the aggregate amount of Principal Receivables in the Trust;
provided, however, that if any Servicer is unable to make the calculations set forth above on any day, the Required Daily Deposit for such Servicer for such day shall be equal to all the Collections received by such Servicer on such day.

 Notwithstanding the foregoing, (i) upon the occurrence of any circumstance described in Section 10.02(d), (e) or
(f) of the Pooling and Servicing Agreement with respect to any Servicer, the Required Daily Deposit for any Series then outstanding shall equal the amount described in paragraph (b) above for such Servicer and (ii) a Servicer may use
Collections received by it for its own account prior to the applicable Distribution Date as permitted by Sections 3.03(b) and 4.03(b) of the Pooling and Servicing Agreement. 
 “Reuters Screen LIBOR01 Page, “ if applicable, shall mean the display page so designated on the Reuters System (or such other rate as
may replace that page on that service or a replacement service for the purpose of displaying comparable rates or prices). 
 “Revolving Period” shall have the meaning set forth in the Series Term Sheet. 
 “Series Available
Principal Amount” shall mean, for any Distribution Date, if a Group Principal Allocation Event has occurred, an amount calculated as follows: For each Series that is a member of the same Group as the Series established hereby (including the
Series established hereby), seriatim, beginning with the Series with the largest Series Investor Interest for such Distribution Date (and if more than one Series has the same Series Investor Interest on such Distribution Date, beginning with
whichever of such Series has the longest time remaining until its latest Class Expected Final Payment Date or, if none, the last scheduled day of its Accumulation Period (assuming that no Early Accumulation Event or Amortization Event occurs with
respect to such Series)), an amount equal to (x) the Group Available Principal Amount less (y) the difference between the Series Required Principal Amount, if any, and the Principal Distribution Amount for such Series for such
Distribution Date, if any, that was funded on such Distribution Date (including any portion of such amount that was funded by amounts withdrawn from the Group Principal Collections Reallocation Account pursuant to Section 9(b)(21),
Section 9(b)(38), 9(b)(39) or a substantially similar provision). For purposes of calculating the Series Available Principal Amount for each other such Series, the Group Available Principal Amount shall be reduced by the amount calculated in
clause (y) for the prior Series for which the Series Available Principal Amount was calculated. 
 “Series Buffer
Amount,” if applicable, shall have the meaning set forth in the Series Term Sheet. 
  

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 “Series Closing Date” shall mean the date designated as such in the Series Term Sheet.

 “Series Collections Account” shall have the meaning specified in Section 8. 
 “Series Cut-Off Date” shall mean the date designated as such in the Series Term Sheet. 
 “Series Distribution Account” shall have the meaning specified in Section 8. 
 “Series Excess Servicing” shall mean, as of any Distribution Date, the sum of the amounts of Class Excess Servicing for each Class of
the Series established hereby, as such amount is modified pursuant to Section 9. 
 “Series Excess Spread” shall mean,
for any Distribution Date, an amount equal to (a) the sum of Series Finance Charge Collections, Series Interchange and any Class Investment Income for any Class of the Series established hereby minus (b) the sum of (i) with
respect to each Class, the product of (A) the Class Invested Amount for such Class for such Distribution Date and (B) a fraction, the numerator of which is the Certificate Rate for that Class, and the denominator of which is (x) if
the relevant Certificate Rate is to be calculated on the basis of the actual number of days elapsed and a 360-day year, 360 divided by the actual number of days from and including the immediately preceding Distribution Date (or in the case of the
first Distribution Date, from and including the Series Closing Date) to but excluding the current Distribution Date or (y) if the relevant Certificate Rate is to be calculated on the basis of a 360-day year of twelve 30-day months, twelve (or
in the case of the first Distribution Date, 360 divided by the number of days from and including the Series Closing Date to but excluding the current Distribution Date, assuming 30-day months), (ii) the Investor Servicing Fee, (iii) the
product of the Series Percentage with respect to the Charged-Off Amount and the Charged-Off Amount, and (iv) the Credit Enhancement Fee, in each case for such Distribution Date; provided, however, that solely for purposes of determining
the Group Excess Spread and the Interchange Subgroup Shortfall Allocation Percentage for this Series or any other Series, Series Excess Spread shall be the amount determined as set forth above minus (i) any amount paid or deposited on
such date by the Trust under the Class Interest Rate Swap and (ii) for so long as any Series that is not an Interchange Series is outstanding and the Series Excess Spread for such Series is positive without giving effect to clause (ii) of
this proviso, the lesser of Series Interchange or the amount determined as the Series Excess Spread without giving effect to this proviso; provided, that Series Excess Spread, for purposes of determining the Group Excess Spread and the
Interchange Subgroup Shortfall Allocation Percentage, shall not be reduced below zero as a result of this proviso, if any, for such Distribution Date; and provided, that if an increase in the Series Investor Interest has been made pursuant to
Section 31 on or prior to such Distribution Date but during the calendar month in which such Distribution Date occurred, the Class Invested Amount for each Class for such Distribution Date shall be deemed to exclude the portion of the Class
Invested Amount represented by Investor Certificates issued in connection with such increase; and provided, further, that if an increase in the Series Investor Interest has been made pursuant to Section 31 during the prior calendar month
on a day other than the Distribution Date in such prior calendar month, the amount in clause (i) above shall be deemed to include the portion of the Class Invested Amount represented by Investor Certificates issued as part of such increase as
if such increase had taken effect on such prior Distribution Date. For the avoidance of doubt, after giving effect to the amendment and restatement of the Series Supplements for Series 1996-4, Series 2003-3 and Series 2003-4, Series Excess Spread
shall be determined without giving effect to clause (ii) of the first proviso above. 
  

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 “Series Finance Charge Collections” shall mean, with respect to any day or any
Distribution Date or Trust Distribution Date, as applicable, the sum of the amount of Class Finance Charge Collections for each Class for such day or for the related Due Period, as applicable. 
 “Series Initial Investor Interest” shall mean the aggregate face amount of Investor Certificates authenticated and delivered pursuant to
Section 7 and, if applicable, pursuant to Section 31, as specified in the Series Term Sheet. 
 “Series
Interchange” shall mean, with respect to any Distribution Date or Trust Distribution Date, as applicable, the sum of the amount of Class Interchange for each Class of this Series for the related Due Period. 
 “Series Interest Funding Account” shall have the meaning specified in Section 8. 
 “Series Invested Amount” with respect to any Distribution Date, shall mean the sum of the Class Invested Amounts for each Class of the
Series established hereby on such Distribution Date. 
 “Series Investor Interest” with respect to any Distribution Date,
shall mean the sum of the Class Investor Interests for each Class of the Series established hereby on such Distribution Date. 
 “Series Minimum Principal Receivables Balance” shall mean, with respect to the Series established hereby, on any date of determination the sum of (A) (i) if a Fixed Principal Allocation Event has not occurred, the
Series Investor Interest on such date of determination, divided by 0.93, (ii) if a Fixed Principal Allocation Event has occurred but the Fully Funded Date has not occurred, the Series Investor Interest as of the date of the occurrence of the
Fixed Principal Allocation Event, divided by 0.93 or (iii) on and after the Fully Funded Date, if any, zero, and (B) (x) the product of (i) the sum of (1) the amount on deposit in the Series Principal Funding Account on such
date of determination and (2) for any date of determination during (x) the Early Accumulation Period, if any, the Estimated Principal Distribution Amount for the next Distribution Date and (y) for any date of determination during the
Accumulation Period, the amount specified in the Master Servicer’s notice of its election to commence the Accumulation Period as the Controlled Accumulation Amount for such Distribution Date, and (ii) a fraction the numerator of which is
the Estimated Investment Shortfall and the denominator of which is the Estimated Yield, in each case on such date of determination, divided by (y) 0.93; provided, however, that Discover Bank on behalf of the Holder of the Seller
Certificate may, upon 30 days’ prior notice to the Trustee, the Rating Agencies and the Credit Enhancement Provider, reduce the Series Minimum Principal Receivables Balance by increasing the divisors set forth above, subject to the condition
that Discover Bank on behalf of the Holder of the Seller Certificate shall have been notified by the Rating Agencies that such reduction would not result in the lowering or withdrawal of the rating of any Class of any Series then outstanding, and
provided, further, that the divisors set forth above may not be increased to more than 0.98. 
  

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 “Series Percentage” shall mean, with respect to any specified category, with respect to
any Distribution Date or Trust Distribution Date, as applicable, the sum of the Class Percentages with respect to such category for each Class of the Series established hereby on such Distribution Date or Trust Distribution Date, as applicable.

 “Series Principal Collections” shall mean, with respect to any day or any Distribution Date or Trust Distribution Date,
as applicable, the sum of the amount of Class Principal Collections for each Class for such day or for the related Due Period, as applicable. 
 “Series Principal Collections Account” shall have the meaning specified in Section 8. 
 “Series
Principal Funding Account” shall mean the Series Principal Funding Account established pursuant to Section 8. Amounts “on deposit in” the Series Principal Funding Account shall be deemed to be on deposit for the benefit of
(i) the Class A Certificateholders for the period up to and including the Class A Expected Final Payment Date or Class A Final Maturity Date, as applicable, and (ii) if there is a Subordinate Class with respect to
Class A, the Class B Certificateholders for the period beginning immediately after the Class A Expected Final Payment Date or Class A Final Maturity Date, as applicable, and ending on the Class B Expected Final Payment Date or Class B
Final Maturity Date, as applicable. Amounts “on deposit in” the Series Principal Funding Account shall be deemed to include amounts invested in Permitted Investments pursuant to Section 8 unless the context clearly requires otherwise.

 “Series Required Principal Amount” shall mean, for this Series, with respect to each Distribution Date of the Controlled
Liquidation Period or the Accumulation Period, as applicable, the product of (x) (i) if the related Due Period does not occur in February, 1.25 or (ii) if the related Due Period occurs in February, 1.05, and (y) the Controlled
Liquidation Amount or the Controlled Accumulation Amount, as applicable, for such Distribution Date, and with respect to each other Series that is a member of the same Group as the Series established hereby, the amount specified in the Series
Supplement for such Series for such Distribution Date. 
 “Series Term Sheet” shall mean the Series Term Sheet setting forth
the terms of the Series of Investor Certificates issued hereby, to which this Annex is attached. 
 “Series Termination
Date” shall mean the date designated as such in the Series Term Sheet. 
 “Shared Credit Enhancement” shall mean
Credit Enhancement available for the benefit of both the Class A Investor Certificates and the Class B Investor Certificates. 
 “Special Payment Date” shall mean each Distribution Date with respect to the Amortization Period and the Distribution Date related to each Class Expected Final Payment Date or Class Final Maturity Date, as applicable.

  

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 “Stated Class A Credit Enhancement Amount” shall mean the “stated amount”
with respect to the Class A Cash Collateral Credit Enhancement, as set forth in the Series Term Sheet. 
 “Stated Class B Credit
Enhancement Amount” shall mean the “stated amount” with respect to the Credit Enhancement that is available solely for the benefit of the Class B Investor Certificates, as set forth in the Series Term Sheet. 
 “Stated Shared Credit Enhancement Amount,” if applicable, shall mean the “stated amount” with respect to the shared portion of
the Credit Enhancement, as set forth in the Series Term Sheet. 
 “Statement Date” shall mean each date designated as such
in the Series Term Sheet. 
 “Subclass” with respect to any Class shall mean, if applicable, each portion of such Class that
has a different Certificate Rate or method of calculating its Certificate Rate. 
 “Subordinate Class” shall mean, with
respect to any Class, the Class, if any, identified by the letter of the alphabet next succeeding the letter designating such Class (e.g., the Subordinate Class with respect to Class A is Class B). 
 “Subordinate Series” shall mean any Series which is subordinated in right of payment, in whole or in part, pursuant to the Series
Supplement with respect to such Series, to the Series established hereby. 
 “Subseries” shall mean Investor Certificates of
a Series that are identified in the Series Term Sheet as constituting a “Subseries.” If a Series consists of two or more Subseries, then each provision of the Annex to this Series Supplement shall be interpreted and applied
separately for each Subseries as if such Subseries were an independent Series, and each reference to a “Series” and each term beginning with “Series” (except as used in this definition of Subseries) shall be deemed to be a
reference to the applicable Subseries or the provisions of the applicable Subseries (e.g., as applied in relation to a specific Subseries, the term “Series Termination Date” shall refer solely to the Series Termination Date identified
in the Series Term Sheet with respect to that Subseries and the term “Series Principal Funding Account” shall refer solely to the Series Principal Funding Account established with respect to that Subseries ), except where the context
clearly requires that such term refers to multiple or other Series of the Trust, in which case such term shall be interpreted to treat each Subseries as a separate Series of the Trust. Each Subseries shall be treated as a separate Series
for all purposes of the Pooling and Servicing Agreement and each other Series Supplement issued with respect to the Discover Card Master Trust I. 
 “Supplemental Credit Enhancement Amount,” if applicable, shall have the meaning set forth in the Series Term Sheet. 
 “Supplemental Credit Enhancement Event” shall occur the first time the long-term debt or deposit rating of Discover Bank or any Additional Seller is withdrawn or reduced below BBB- by Standard & Poor’s.

  

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 “Supplemental Subordinated Amount,” if applicable, shall have the meaning set forth in
the Series Term Sheet. 
 “Swap Counterparty Rate,” if applicable, with respect to any Class Interest Rate Swap, shall have
the meaning specified in the Series Term Sheet. 
 “Swap Trust Rate,” if applicable, with respect to any Class Interest Rate
Swap, shall have the meaning specified in the Series Term Sheet. 
 “Total Available Credit Enhancement Amount” shall mean,
with respect to the first Distribution Date, the Stated Class B Credit Enhancement Amount plus, if applicable, the Stated Shared Credit Enhancement Amount, and, on each Distribution Date thereafter, shall mean the Available Class B Credit
Enhancement Amount plus, if applicable, the Available Shared Credit Enhancement Amount, in each case after all adjustments thereto on the immediately preceding Distribution Date, and, in each case, as adjusted pursuant to Section 9 on
such Distribution Date. 
 “Total Maximum Credit Enhancement Amount” shall have the meaning set forth in the Series Term
Sheet. 
 “United States” or “U.S.” shall mean the United States of America, its territories and
possessions, any State of the United States and the District of Columbia. 
 SECTION 2. Subordination. 
 (a) Subordination of Certain Classes. If there is a Subordinate Class with respect to Class A, the Holders of each Class B Investor
Certificate, by their acceptance of such Investor Certificate, hereby subordinate, for the benefit of the Holders of Class A Investor Certificates, to the extent and in the manner set forth in Section 9, all of such Investor
Certificateholders’ right, title and interest in and to future distributions due on such Holders’ Investor Certificates, but only to the extent of the Available Subordinated Amount. 
 (b) No Subordination of Series. The Investor Certificates of the Series established hereby shall not be subordinated in right of payment to any
other Series, whether currently outstanding or to be issued in the future. One or more other Series, however, may be subordinated in right of payment to the Series established hereby, although the Sellers shall have no obligation to issue such a
Subordinate Series. If any Subordinate Series is issued, such Subordinate Series shall be subordinate in right of payment to the Series established hereby only to the extent set forth in the Series Supplement with respect to such Subordinate Series.

 SECTION 3. Representations and Warranties of the Sellers. The representations and warranties of the Sellers contained in
Section 2.04 of the Pooling and Servicing Agreement and the corresponding sections of any Assignment are true on and as of the date hereof and/or the date set forth in the Pooling and Servicing Agreement, as applicable. Each Seller also
represents and warrants to the Trust as of the date hereof that: 
  

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 (a) The execution, delivery and performance of this Series Supplement by such Seller have been duly
authorized by all necessary corporate action, do not require any approval or consent of any governmental agency or authority, do not and will not conflict with any material provision of the Certificate of Incorporation or By-Laws of such Seller, do
not and will not conflict with, or result in a breach which would constitute a material default under, any agreement for borrowed money binding upon or applicable to it or such of its property which is material to it, or, to the best of such
Seller’s knowledge, any law or governmental regulation or court decree applicable to it or such material property, and this Series Supplement is the valid, binding and enforceable obligation of such Seller, except as the same may be limited by
receivership, insolvency, reorganization, moratorium or other laws relating to the enforcement of creditors’ rights generally or by general equity principles. 
 (b) The Pooling and Servicing Agreement creates a valid and enforceable security interest (as defined in the applicable UCC) which security interest is prior to all other Liens and is enforceable as such against
creditors of and purchasers from Seller, except as the same may be limited by receivership, insolvency, reorganization, moratorium or other laws relating to the enforcement of creditors’ rights generally or by general equity principles.

 (c) The Receivables constitute “accounts” within the meaning of Article 9 of the applicable UCC. 
 (d) Each Seller has caused or will have caused, within ten days of the date of this Series Supplement, the filing of all appropriate financing statements
in the proper filing office in the appropriate jurisdictions under applicable law in order to perfect the security interest (as defined in the applicable UCC) in the Receivables conveyed to the Trustee under the Pooling and Servicing Agreement.

 (e) Other than the sale, transfer, assignment and conveyance of the Receivables to the Trust and the grant of a security interest therein
pursuant to the Pooling and Servicing Agreement, the Seller has not pledged, assigned, sold, granted a security interest in or otherwise conveyed any of the Receivables. 
 (f) The Seller has not authorized the filing of and is not aware of any financing statements against the Seller that include a description of collateral covering the Receivables, other than any financing statement
(i) relating to the interest of the Trust in the Receivables under the Pooling and Servicing Agreement or (ii) that has been terminated. 
 (g) The Seller is not aware of any judgment or tax lien filings against it. 
 The representations and warranties set forth in this
Section 3 shall survive the transfer and assignment to the Trust of the Receivables transferred to the Trust by the Sellers. None of (i) compliance with the representations and warranties set forth in this Section 3,
(ii) compliance with the representations and warranties set forth in Sections 2.04(d) and (e) of the Pooling and Servicing Agreement or (iii) compliance with the provisions of Section 13.02 of the Pooling and Servicing Agreement
can be waived by the Trustee without the prior written consent of Standard & Poor’s. 
  

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 SECTION 4. Representations and Warranties of Discover Bank as Master Servicer and Servicer. The
representations and warranties of Discover Bank as the Master Servicer and as a 
 Servicer contained in Section 3.04 of the Pooling and Servicing
Agreement are true on and as of the date hereof. Discover Bank as Master Servicer and Servicer also represents and warrants to the Trust as of the date hereof that the execution, delivery and performance of this Series Supplement by Discover Bank
have been duly authorized by all necessary corporate action, do not require any approval or consent of any governmental agency or authority, do not and will not conflict with any material provision of the Certificate of Incorporation or By-Laws of
Discover Bank, do not and will not conflict with, or result in a breach which would constitute a material default under, any agreement for borrowed money binding upon or applicable to it or such of its property which is material to it, or, to the
best of Discover Bank’s knowledge, any law or governmental regulation or court decree applicable to it or such material property, and this Series Supplement is the valid, binding and enforceable obligation of Discover Bank, except as the same
may be limited by receivership, insolvency, reorganization, moratorium or other laws relating to the enforcement of creditors’ rights generally or by general equity principles. 
 SECTION 5. Representations and Warranties of Other Servicers. The representations and warranties of each Servicer (other than Discover
Bank), if any, contained in Section 3.05 of the Pooling and Servicing Agreement are true and correct on and as of the date hereof. Each such Servicer also represents and warrants to the Trust as of the date hereof that the execution, delivery
and performance of this Series Supplement by such Servicer have been duly authorized by all necessary corporate action, do not require any approval or consent of any governmental agency or authority, do not and will not conflict with any material
provision of the Certificate of Incorporation or By-Laws of such Servicer, do not and will not conflict with, or result in a breach which would constitute a material default under, any agreement for borrowed money binding upon or applicable to it or
such of its property which is material to it, or, to the best of such Servicer’s knowledge, any law or governmental regulation or court decree applicable to it or such material property, and this Series Supplement is the valid, binding and
enforceable obligation of such Servicer, except as the same may be limited by receivership, insolvency, reorganization, moratorium or other laws relating to the enforcement of creditors’ rights generally or by general equity principles.

 SECTION 6. Representations and Warranties of the Trustee. The representations and warranties of the Trustee contained in
Section 11.16 of the Pooling and Servicing Agreement are true on and as of the date hereof. The Trustee also represents and warrants as of the date hereof that the Trustee has full power, authority and right to execute, deliver and perform this
Series Supplement, and has taken all necessary action to authorize the execution, delivery and performance by it of this Series Supplement, and this Series Supplement has been duly executed and delivered by the Trustee. 
 SECTION 7. Authentication of Certificates. Pursuant to the request of the Sellers, the Trustee shall cause Investor Certificates in authorized
denominations evidencing the Series established hereby to be duly authenticated and delivered as of the Series Closing Date to or upon the order of the Sellers pursuant to Section 6.06 of the Pooling and Servicing Agreement. 
 SECTION 8. Establishment and Administration of Investor Accounts and the Credit Enhancement Account. 
  

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 (a) The Series Distribution Account, Series Collections Account and Series Principal Collections
Account. The Trustee, for the benefit of the Certificateholders, shall cause to be established and maintained in the name of the Trust, with the corporate trust department of an office or branch of either the Trustee or a Qualified Institution,
three non-interest bearing segregated trust accounts (the “Series Distribution Account”; for Collections, the “Series Collections Account”; and for Series Principal Collections and certain other amounts deposited therein pursuant
to Section 9, the “Series Principal Collections Account”) bearing a designation clearly indicating that the funds deposited therein are held for the benefit of the Certificateholders. The Trust shall possess all right, title and
interest in all funds on deposit in the Series Distribution Account, the Series Collections Account and the Series Principal Collections Account; provided, however, that all interest and earnings (less investment expenses) on funds on deposit
in any such account shall be paid to the Holder of the Seller Certificate in accordance with Section 4.02(c) of the Pooling and Servicing Agreement. Pursuant to authority granted to it pursuant to Section 3.01(b) of the Pooling and
Servicing Agreement, the Master Servicer shall have the revocable power to instruct the Trustee to withdraw funds from the Series Distribution Account, the Series Collections Account and the Series Principal Collections Account for the purpose of
carrying out the duties of the Master Servicer hereunder. The Master Servicer at all times shall maintain accurate records reflecting each transaction in the Series Distribution Account, the Series Collections Account and the Series Principal
Collections Account. The Paying Agent also shall have the revocable authority to make withdrawals from the Series Distribution Account. 
 (b) Reallocation Accounts. The Trustee, for the benefit of the Certificateholders, shall cause to be established and maintained in the name of the Trust, with the corporate trust department of an office or branch of either the
Trustee or a Qualified Institution, three non-interest bearing segregated trust accounts for the Group of which the Series established hereby is a member (for reallocated Series Finance Charge Collections and Class A Investment Income, the
“Group Finance Charge Collections Reallocation Account,” for reallocated Series Principal Collections and other amounts deposited into the Series Principal Collections Account pursuant to Section 9, the “Group Principal
Collections Reallocation Account” and for reallocated Series Interchange, the “Group Interchange Reallocation Account”) bearing a designation clearly indicating that the funds deposited therein are held for the benefit of the
Certificateholders. The Trust shall possess all right, title and interest in all funds on deposit from time to time in the Group Finance Charge Collections Reallocation Account, the Group Principal Collections Reallocation Account and the Group
Interchange Reallocation Account and in all proceeds thereof. Pursuant to authority granted to it pursuant to Section 3.01(b) of the Pooling and Servicing Agreement, the Master Servicer shall have the revocable power to instruct the Trustee to
withdraw funds from the Group Finance Charge Collections Reallocation Account, the Group Principal Collections Reallocation Account and the Group Interchange Reallocation Account for the purpose of carrying out the duties of the Master Servicer
hereunder. The Master Servicer at all times shall maintain accurate records reflecting each transaction in the Group Finance Charge Collections Reallocation Account, the Group Principal Collections Reallocation Account and the Group Interchange
Reallocation Account. 
  

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 (c) The Series Principal Funding Account. The Trustee, for the benefit of the Certificateholders,
shall establish and maintain or cause to be established and maintained in the name of the Trust, with the corporate trust department of an office or branch of either the Trustee or a Qualified Institution, a non-interest bearing segregated trust
account (for principal to be paid to Investor Certificateholders of this Series, the “Series Principal Funding Account”) bearing a designation clearly indicating that the funds deposited therein are held for the benefit of the
Certificateholders. The Trust shall possess all right, title and interest in all funds on deposit from time to time in the Series Principal Funding Account and in all proceeds thereof. The Series Principal Funding Account shall be under the sole
dominion and control of the Trustee for the benefit of the Certificateholders. Pursuant to authority granted to it pursuant to Section 3.01(b) of the Pooling and Servicing Agreement, the Master Servicer shall have the revocable power to
withdraw funds from the Series Principal Funding Account for the purpose of carrying out the duties of the Master Servicer hereunder. The Master Servicer at all times shall maintain accurate records reflecting each transaction in the Series
Principal Funding Account. The Paying Agent also shall have the revocable authority to make withdrawals from the Series Principal Funding Account. 
 Funds on deposit in the Series Principal Funding Account shall be invested in Permitted Investments by the Trustee (or, at the direction of the Trustee, by the Master Servicer on behalf of the Trustee) at the direction of Discover Bank on
behalf of the Holder of the Seller Certificate, as set forth below. Any Permitted Investment with a stated maturity shall mature on or prior to the following Distribution Date. On or before the occurrence of the first Distribution Date with respect
to the Accumulation Period or Controlled Liquidation Period, as applicable (and on or before any subsequent Distribution Date in which the notice previously given is no longer correct or valid), the Master Servicer shall notify the Trustee of the
amount of Certificate Principal to be deposited into the Series Principal Funding Account on such Distribution Date, and Discover Bank on behalf of the Holder of the Seller Certificate shall direct the Trustee in writing to invest the funds that
will be on deposit in the Series Principal Funding Account on such Distribution Date (including any funds previously invested in Permitted Investments that will be available for reinvestment on such Distribution Date) in Permitted Investments.
Discover Bank’s notice to the Trustee shall specifically identify each such Permitted Investment (including its principal amount and maturity). In addition, Discover Bank on behalf of the Holder of the Seller Certificate shall from time to time
provide written notice to the Trustee directing the Trustee to reinvest funds representing principal, interest or other investment income received by it with respect to such Permitted Investments (whether upon maturity or otherwise) in additional
Permitted Investments. In the event that Discover Bank on behalf of the Holder of the Seller Certificate fails to direct the Trustee to invest or reinvest any funds that are deposited in the Series Principal Funding Account or that are received by
it with respect to Permitted Investments by 2:00 p.m. on the date such funds are available for investment, the Trustee shall use reasonable efforts to invest such funds overnight in securities represented by instruments in bearer or registered form
which evidence obligations issued or fully guaranteed, as to timely payment, by the United States of America or any instrumentality or agency thereof when such obligations are backed by the full faith and credit of the United States of America until
such time as the Trustee receives the required notice from Discover Bank; provided, however, that the Trustee shall have no liability for the failure to invest such funds if the Trustee has employed reasonable efforts to make such investment.

  

 31 








 (d) The Series Interest Funding Account. The Trustee, for the benefit of the Certificateholders,
shall establish and maintain or cause to be established and maintained in the name of the Trust, in the corporate trust department of an office or branch of either the Trustee or a Qualified Institution, a non-interest bearing segregated trust
account (for payment of Certificate Interest, the “Series Interest Funding Account”) bearing a designation clearly indicating that the funds deposited therein are held for the benefit of the Certificateholders. The Trust shall possess all
right, title and interest in all funds on deposit from time to time in the Series Interest Funding Account and in all proceeds thereof. Pursuant to authority granted to it pursuant to Section 3.01(b) of the Pooling and Servicing Agreement, the
Master Servicer shall have the revocable power to instruct the Trustee to withdraw funds from the Series Interest Funding Account for the purpose of carrying out the duties of the Master Servicer hereunder. Any funds on deposit in the Series
Interest Funding Account for more than one Business Day shall be invested in Permitted Investments pursuant to Section 4.02(c) of the Pooling and Servicing Agreement. The Master Servicer at all times shall maintain accurate records reflecting
each transaction in the Series Interest Funding Account. The Paying Agent shall also have the revocable authority to make withdrawals from the Series Interest Funding Account. 
 (e) The Credit Enhancement Account. If the Credit Enhancement is Funded Credit Enhancement, the Master Servicer, for the benefit of the
Certificateholders and the Credit Enhancement Provider, shall establish and maintain or cause to be established and maintained in the name of the Trust, with the corporate trust department of an office or branch of either the Trustee or a Qualified
Institution, a non-interest bearing segregated trust account (the “Credit Enhancement Account”) bearing a designation clearly indicating that the funds deposited therein are held for the benefit of the Certificateholders and the Credit
Enhancement Provider. The Trust shall possess all right, title and interest in all funds on deposit from time to time in the Credit Enhancement Account and in all proceeds thereof. The Credit Enhancement Account shall be under the sole dominion and
control of the Trustee as the administrator of the Credit Enhancement for the benefit of the Certificateholders and the Credit Enhancement Provider; provided, however, the Master Servicer may make Credit Enhancement Drawings pursuant to, and
for the purposes set forth in, Section 9. The interest of the Credit Enhancement Provider in the Credit Enhancement Account shall be subordinated to the interests of the Certificateholders to the extent provided herein and in the Credit
Enhancement Agreement. The Trustee, at the direction of the Master Servicer, shall (i) on the Series Closing Date, deposit into the Credit Enhancement Account an amount equal to the sum of the Stated Class A Credit Enhancement Amount, the
Stated Shared Credit Enhancement Amount, and the Stated Class B Credit Enhancement Amount, as applicable (such amounts to be funded by the Credit Enhancement Provider pursuant to the Credit Enhancement Agreement) and (ii) make withdrawals from,
and deposits to, the Credit Enhancement Account from time to time in the amounts and for the purposes set forth in this Series Supplement. The Credit Enhancement Provider shall not be entitled to reimbursement from the assets of the Trust for any
withdrawals from the Credit Enhancement Account except as specifically provided in this Series Supplement. The Master Servicer at all times shall maintain accurate records reflecting each transaction in the Credit Enhancement Account. 
 Funds on deposit in the Credit Enhancement Account shall be invested in Permitted Investments by the Trustee as administrator of the Credit Enhancement
at the direction of the Master Servicer, as set forth below. Any Permitted Investment with a stated maturity shall mature on or prior to the following Distribution Date and any funds received with respect to the maturity of a Permitted 

  

 32 








 
Investment shall be available in sufficient time to allow for any payments to be made to the Investor Certificateholders on such Distribution Date. The
Master Servicer’s notice to the Trustee shall specifically identify each such Permitted Investment (including its principal amount and maturity). In addition, the Master Servicer shall from time to time provide written notice to the Trustee
directing the Trustee to reinvest funds representing principal, interest or other investment income received by it with respect to such Permitted Investments (whether upon maturity or otherwise) in additional Permitted Investments. In the event that
the Master Servicer fails to direct the Trustee to invest or reinvest any funds that are deposited in the Credit Enhancement Account or that are received by it with respect to Permitted Investments by 2:00 p.m. on the date such funds are available
for investment, the Trustee shall use reasonable efforts to invest such funds overnight in securities represented by instruments in bearer or registered form which evidence obligations issued or fully guaranteed, as to timely payment, by the United
States of America or any instrumentality or agency thereof when such obligations are backed by the full faith and credit of the United States of America until such time as the Trustee receives the required notice from the Master Servicer;
provided, however, that the Trustee shall have no liability for the failure to invest such funds if the Trustee has employed reasonable efforts to make such investment. 
 On each Distribution Date, all interest and earnings (net of losses and investment expenses) accrued since the preceding Distribution Date on funds on
deposit in the Credit Enhancement Account shall be paid to the Trustee as administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. For purposes of determining the availability of
funds or the balances in the Credit Enhancement Account, all investment earnings on such funds shall be deemed not to be available or on deposit. If, on any Distribution Date, after giving effect to all other deposits to and withdrawals from the
Credit Enhancement Account as of such Distribution Date, the amount on deposit in the Credit Enhancement Account is greater than the Total Maximum Credit Enhancement Amount, then the excess of the amount on deposit over the Total Maximum Credit
Enhancement Amount shall be withdrawn from the Credit Enhancement Account and paid to the Trustee as administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. 
 Upon the earliest to occur of (i) the termination of the Trust, (ii) the Series Termination Date and (iii) the day on which the Class
Invested Amount for each Class of the Series established hereby is paid in full, and after payment of all amounts to be paid on such day from the Credit Enhancement Account to or for the benefit of Investor Certificateholders of the Series
established hereby, all amounts remaining on deposit in the Credit Enhancement Account shall be withdrawn from such account and paid to the Trustee as administrator of the Credit Enhancement for application in accordance with the provisions of the
Credit Enhancement Agreement. 
 (f) The Interest Rate Swap Account. The Trustee shall establish and maintain or cause to be
established and maintained in the name of the Trust, in the corporate trust department of an office or branch of either the Trustee or a Qualified Institution, a non-interest bearing segregated trust account (for payment of Net Swap Payments, the
“Interest Rate Swap Account”). The Trust shall possess all right, title and interest in all funds on deposit from time to time in the Interest Rate Swap Account and in all proceeds 

  

 33 








 
thereof. Pursuant to authority granted to it pursuant to Section 3.01(b) of the Pooling and Servicing Agreement, the Master Servicer shall have the
revocable power to instruct the Trustee to withdraw funds from the Interest Rate Swap Account for the purpose of carrying out the duties of the Master Servicer hereunder. Any funds on deposit in the Interest Rate Swap Account for more than one
Business Day shall be invested in Permitted Investments pursuant to Section 4.02(c) of the Pooling and Servicing Agreement. The Master Servicer at all times shall maintain accurate records reflecting each transaction in the Interest Rate Swap
Account. The Paying Agent shall also have the revocable authority to make withdrawals from the Interest Rate Swap Account. 
 (g) Transfer
of Investor Accounts. If at any time any of the Investor Accounts established in Sections 8(a) through 8(f) is not being held by the Trustee and the institution holding such Investor Account ceases to be a Qualified Institution, the Master
Servicer shall within 10 Business Days establish a new Investor Account (meeting any conditions specified in this Series Supplement with respect to such Investor Account) with a Qualified Institution and transfer any cash and/or any investments to
such new Investor Account. 
 SECTION 9. Allocations of Collections. 
 (a) Deposits to Series Collections Account. On or before each Distribution Date, the Master Servicer shall direct the Trustee in writing to
withdraw from the Group Collections Account and deposit into the Series Collections Account an amount equal to the sum of the Series Finance Charge Collections, the Series Principal Collections and the Series Interchange for the related Due Period.

 (b) Deposits During the Revolving Period, Early Accumulation Period, Accumulation Period, Controlled Liquidation Period or Amortization
Period, as Applicable. The Master Servicer shall, on or before each Distribution Date during the Revolving Period, the Early Accumulation Period, the Accumulation Period, the Controlled Liquidation Period or any Amortization Period, as
applicable, direct the Trustee in writing that funds be paid or deposited in the following amounts, to the extent such funds are available and in the order of priority specified, to the account or Person indicated, in each case as set forth below;
provided, however, that if the Credit Enhancement is not Funded Credit Enhancement, then no amounts (other than any Credit Enhancement Fees or any amounts paid to the Trustee as Administrator of the Credit Enhancement in respect of the Total
Available Credit Enhancement Amount) that are measured or determined by reference to Class Excess Servicing for any Class, Series Excess Servicing or the amount on deposit at any time in the Group Finance Charge Collections Reallocation Account or
Group Interchange Reallocation Account shall be paid or deposited if, on the related Drawing Date, the Credit Enhancement Provider is unable to pay its debts as they become due. 
 (1) During the Accumulation Period or the Early Accumulation Period, if any, or on the first Distribution Date of the Amortization Period,
if applicable, an amount equal to the amount of Class Investment Income for the related Due Period for any Class shall be withdrawn from the Series Principal Funding Account and deposited into the Series Collections Account. 
 (2) With respect to Class A, an amount equal to the lesser of 
  

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	 	(x)	the Class A Required Amount and 

  

	 	(y)	the sum of (1) Class A Finance Charge Collections, (2) Class A Investment Income, if applicable, and (3) Class A Interchange 


shall be withdrawn from the Series Collections Account and deposited into the Series Distribution Account. The amount by which the Class A Required Amount
exceeds the amount of such deposit shall be the “Class A Required Amount Shortfall.” 
 (3) With respect to
Class A, an amount equal to the lesser of 
  

	 	(x)	the Class A Required Amount Shortfall and 

  

	 	(y)	funds, if any, available to pay such Class A Required Amount Shortfall from funds initially allocated to any Subordinate Series 

 shall be deposited into the Series Distribution Account. The Class A Required Amount Shortfall shall be reduced by the amount of such deposit. 
 (4) With respect to Class A, an amount equal to the lesser of 
  

	 	(x)	the Class A Cumulative Investor Charged-Off Amount and 

  

	 	(y)	Class A Excess Servicing 

 shall be withdrawn from the Series
Collections Account and deposited into the Series Principal Collections Account. The Class A Cumulative Investor Charged-Off Amount, Series Excess Servicing and the Available Subordinated Amount shall be reduced by the amount of such deposit.

 (5) An amount equal to the lesser of 
  

	 	(x)	the Class A Cumulative Investor Charged-Off Amount and 

  

	 	(y)	funds, if any, available to pay such Class A Cumulative Investor Charged-Off Amount from funds initially allocated to any Subordinate Series 

 shall be deposited into the Series Principal Collections Account. The Class A Cumulative Investor Charged-Off Amount shall be reduced by the amount of such deposit.

 (6) If there is a Subordinate Class with respect to Class A, an amount equal to the least of 
  

	 	(x)	the Class A Required Amount Shortfall, 

  

	 	(y)	the Available Subordinated Amount, and 

  

 35 









	 	(z)	Class B Available Collections 

 shall be withdrawn from the Series
Collections Account and deposited into the Series Distribution Account. The Class B Subordinated Payment shall be increased by, and the Class A Required Amount Shortfall, the Available Subordinated Amount and Class B Available Collections shall
be decreased by, the amount of such deposit. 
 (7) If there is a Subordinate Class with respect to Class A, an amount
equal to the least of 
  

	 	(x)	the Class A Cumulative Investor Charged-Off Amount, 

  

	 	(y)	the Available Subordinated Amount, and 

  

	 	(z)	Class B Available Collections 

 shall be withdrawn from the Series
Collections Account and deposited into the Series Principal Collections Account. The Class B Subordinated Payment shall be increased by, and the Class A Cumulative Investor Charged-Off Amount, the Available Subordinated Amount and Class B
Available Collections shall be reduced by, the amount of such deposit. 
 (8) If there is a Subordinate Class with respect to
Class A, an amount equal to the lesser of 
  

	 	(x)	the Class B Required Amount and 

  

	 	(y)	the positive difference, if any, between 

  

	 	(1)	the amount of Class B Available Finance Charge Collections, and 

  

	 	(2)	the Class B Subordinated Payment 

 shall be withdrawn from the Series
Collections Account and deposited into the Series Distribution Account. The amount by which the Class B Required Amount exceeds the amount of such deposit shall be the “Class B Required Amount Shortfall.” 
 (9) If there is a Subordinate Class with respect to Class A, an amount equal to the lesser of 
  

	 	(x)	the Class B Required Amount Shortfall and 

  

	 	(y)	funds, if any, available to pay such Class B Required Amount Shortfall from funds initially allocated to any Subordinate Series 

 shall be deposited into the Series Distribution Account. The Class B Required Amount Shortfall shall be reduced by the amount of such deposit. 
  

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 (10) If there is a Subordinate Class with respect to Class A, an amount equal to the
lesser of 
  

	 	(x)	the Class B Cumulative Investor Charged-Off Amount and 

  

	 	(y)	funds, if any, available to pay such Class B Cumulative Investor Charged-Off Amount from funds initially allocated to any Subordinate Series 

 shall be deposited into the Series Principal Collections Account. The Class B Cumulative Investor Charged-Off Amount shall be reduced by the amount of such deposit.

 (11) If there is a Subordinate Class with respect to Class A, an amount equal to the least of 
  

	 	(x)	the Class A Required Amount Shortfall, 

  

	 	(y)	the Available Subordinated Amount, and 

  

	 	(z)	Series Excess Servicing 

 shall be withdrawn from the Series Collections
Account and deposited into the Series Distribution Account. The Class A Required Amount Shortfall, the Available Subordinated Amount and the amount of Series Excess Servicing shall be reduced by the amount of such deposit. 
 (12) If there is a Subordinate Class with respect to Class A, an amount equal to the least of 
  

	 	(x)	the Class A Cumulative Investor Charged-Off Amount, 

  

	 	(y)	the Available Subordinated Amount, and 

  

	 	(z)	Series Excess Servicing 

 shall be withdrawn from the Series Collections
Account and deposited into the Series Principal Collections Account. The Class A Cumulative Investor Charged-Off Amount, the Available Subordinated Amount and the amount of Series Excess Servicing shall be reduced by the amount of such deposit.
If the Class A Cumulative Investor Charged-Off Amount is greater than zero after such reduction, the Class A Cumulative Investor Charged-Off Amount shall be further reduced by an amount equal to the least of 
  

	 	(x)	the Class A Cumulative Investor Charged-Off Amount, 

  

	 	(y)	the Available Subordinated Amount, and 

  

	 	(z)	the Class B Investor Interest. 

  

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 The Class A Cumulative Investor Charged-Off Amount, the Available Subordinated Amount and the Class B Investor
Interest shall each be reduced by such least amount, and the Class B Cumulative Investor Charged-Off Amount shall be increased by such amount. 
 (13) If there is a Subordinate Class with respect to Class A, an amount equal to the lesser of 
  

	 	(x)	the Class B Required Amount Shortfall and 

  

	 	(y)	Series Excess Servicing 

 shall be withdrawn from the Series Collections
Account and deposited into the Series Distribution Account. The Class B Required Amount Shortfall and the amount of Series Excess Servicing shall be reduced by the amount of such deposit. 
 (14) If there is a Subordinate Class with respect to Class A, an amount equal to the lesser of 
  

	 	(x)	the Class B Cumulative Investor Charged-Off Amount and 

  

	 	(y)	Series Excess Servicing 

 shall be withdrawn from the Series Collections
Account and deposited into the Series Principal Collections Account. The Class B Cumulative Investor Charged-Off Amount and the amount of Series Excess Servicing shall be reduced by the amount of such deposit. 
 (15) On each Distribution Date prior to the Fully Funded Date, if any, an amount equal to the lesser of 
  

	 	(x)	the amount by which the Total Available Credit Enhancement Amount is less than the Total Maximum Credit Enhancement Amount and 

  

	 	(y)	Series Excess Servicing 

 shall be withdrawn from the Series Collections
Account and paid to the Trustee as administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. If there is Shared Credit Enhancement or Class A Cash Collateral Credit
Enhancement, such deposit shall increase the Available Shared Credit Enhancement Amount or Available Class A Credit Enhancement Amount, until the Available Shared Credit Enhancement Amount or Available Class A Credit Enhancement Amount, as
applicable, equals the Maximum Shared Credit Enhancement Amount or the Maximum Class A Credit Enhancement Amount, as applicable. If there is a Subordinate Class with respect to Class A, any remaining portion of such deposit shall increase
the Available Class B Credit Enhancement Amount until the Available Class B Credit Enhancement Amount equals the Maximum Class B Credit Enhancement Amount. The Total Available Credit Enhancement Amount shall be increased by, and the amount of Series
Excess Servicing shall be decreased by, the amount of such deposit. 
  

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 (16) If there is Shared Credit Enhancement or Class A Cash Collateral Credit
Enhancement, and if the Class A Required Amount Shortfall is greater than zero, the Master Servicer, on the related Drawing Date, shall make a Credit Enhancement Drawing in an amount equal to the lesser of 
  

	 	(x)	the Class A Required Amount Shortfall and 

  

	 	(y)	the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as applicable, 

 and such amount shall be deposited into the Series Distribution Account. The Class A Required Amount Shortfall and the Available Shared Credit Enhancement Amount or
Available Class A Credit Enhancement Amount, as applicable, shall be reduced by the amount of such deposit. 
 (17) If
there is Shared Credit Enhancement or Class A Cash Collateral Credit Enhancement, and if the Class A Cumulative Investor Charged-Off Amount is greater than zero, the Master Servicer, on the related Drawing Date, shall make a Credit
Enhancement Drawing in an amount equal to the lesser of 
  

	 	(x)	the Class A Cumulative Investor Charged-Off Amount and 

  

	 	(y)	the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as applicable, 

 and such amount shall be deposited into the Series Principal Collections Account. The Class A Cumulative Investor Charged-Off Amount and the Available Shared Credit
Enhancement Amount or Available Class A Credit Enhancement Amount, as applicable, shall be reduced by the amount of such deposit. 
 (18) If there is Shared Credit Enhancement, and if there is a Subordinate Class with respect to Class A, and if the Class B Required Amount Shortfall is greater than zero, the Master Servicer, on the related
Drawing Date, shall make a Credit Enhancement Drawing in an amount equal to the lesser of 
  

	 	(x)	the Class B Required Amount Shortfall and 

  

	 	(y)	the Available Shared Credit Enhancement Amount 

 and such amount shall be
deposited into the Series Distribution Account. The Class B Required Amount Shortfall and the Available Shared Credit Enhancement Amount shall be reduced by the amount of such deposit. 
  

 39 








 (19) If there is Shared Credit Enhancement, and if there is a Subordinate Class with
respect to Class A, and if the Class B Cumulative Investor Charged-Off Amount is greater than zero, the Master Servicer, on the related Drawing Date, shall make a Credit Enhancement Drawing in an amount equal to the lesser of 
  

	 	(x)	the Class B Cumulative Investor Charged-Off Amount and 

  

	 	(y)	the Available Shared Credit Enhancement Amount 

 and such amount shall be
deposited into the Series Principal Collections Account. The Class B Cumulative Investor Charged-Off Amount and the Available Shared Credit Enhancement Amount shall be reduced by the amount of such deposit. 
 (20) If there is Subordinate Class with respect to Class A, and if the Class B Required Amount Shortfall is greater than zero, the
Master Servicer, on the related Drawing Date, shall make a Credit Enhancement Drawing in an amount equal to the lesser of 
  

	 	(x)	the Class B Required Amount Shortfall and 

  

	 	(y)	the Available Class B Credit Enhancement Amount 

 and such amount shall be
deposited into the Series Distribution Account. The Class B Required Amount Shortfall and the Available Class B Credit Enhancement Amount shall be reduced by the amount of such deposit. 
 (21) If there is a Subordinate Class with respect to Class A, and if the Class B Cumulative Investor Charged-Off Amount is greater
than zero, the Master Servicer, on the related Drawing Date, shall make a Credit Enhancement Drawing in an amount equal to the lesser of 
  

	 	(x)	the Class B Cumulative Investor Charged-Off Amount and 

  

	 	(y)	the Available Class B Credit Enhancement Amount 

 and such amount shall be
deposited into the Series Principal Collections Account. The Class B Cumulative Investor Charged-Off Amount and the Available Class B Credit Enhancement Amount shall be reduced by the amount of such deposit. 
 (22) An amount equal to the lesser of 
  

	 	(x)	the Credit Enhancement Fee and 

  

	 	(y)	Series Excess Servicing 

 shall be withdrawn from the Series Collections
Account and paid to the Trustee as the administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. The amount of Series Excess Servicing shall be reduced by the amount of such
payment. 
  

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 (23) An amount equal to the Monthly Swap Deposit, if any, up to the remaining amount of
Series Excess Servicing, shall be withdrawn from the Series Collections Account and deposited into the Interest Rate Swap Account. 
 (24) The positive difference, if any, of the amount of Series Excess Servicing minus, for so long as any Series that is not an Interchange Series is outstanding, the amount of Series Interchange, shall be withdrawn from the Series
Collections Account and deposited into the Group Finance Charge Collections Reallocation Account. 
 (25) The allocations set
forth in clauses (25)(A) and (25)(B) shall be made, first, with respect to Class A, and then, if there is a Subordinate Class with respect to Class A, the allocations set forth in clauses (25)(A) and (25)(B) shall be
made with respect to Class B, to the extent that funds are available pursuant to this clause (25): 
 (A) An amount equal to
the lesser of 
  

	 	(x)	the Class Required Amount Shortfall and 

  

	 	(y)	the product of 

  

	 	(1)	a fraction the numerator of which is the Class Required Amount Shortfall and the denominator of which is the sum of the Class Required Amount Shortfalls for all Classes designated
by the same letter of the alphabet of all Series in the Group to which the Series established hereby belongs (after giving effect to provisions in the applicable Series Supplements substantially similar to the clauses preceding this clause
(25)) and 

  

	 	(2)	the amount on deposit in the Group Finance Charge Collections Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause
in the applicable Series Supplements, 

 shall be withdrawn from the Group Finance Charge Collections Reallocation Account and deposited into
the Series Distribution Account. The Class Required Amount Shortfall shall be reduced by the amount of such deposit. The Available Subordinated Amount shall be increased by the amount of any such deposit that reduces the Class B Required Amount
Shortfall. 
 (B) An amount equal to the lesser of 
  

	 	(x)	the Class Cumulative Investor Charged-Off Amount and 

  

	 	(y)	the product of 

  

 41 









	 	(1)	a fraction the numerator of which is the Class Cumulative Investor Charged-Off Amount and the denominator of which is the sum of the Class Cumulative Investor Charged-Off Amounts
for all Classes designated by the same letter of the alphabet of all Series in the Group to which the Series established hereby belongs (after giving effect to provisions in the applicable Series Supplements substantially similar to the clauses
preceding this clause (25)) and 

  

	 	(2)	the amount on deposit in the Group Finance Charge Collections Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause
in the applicable Series Supplements, 

 shall be withdrawn from the Group Finance Charge Collections Reallocation Account and deposited into
the Series Principal Collections Account. The Class Cumulative Investor Charged-Off Amount shall be reduced by the amount of such deposit. The Available Subordinated Amount shall be increased by the amount of any such deposit that reduces the Class
B Cumulative Investor Charged-Off Amount. 
 (C) After the allocations set forth in clauses (25)(A) and (25)(B) are
made with respect to Class A and Class B, then, if there are one or more Subordinate Classes other than Class B, the allocations set forth in clauses (25)(A) and (25)(B) shall be made with respect to each other such Class, in
alphabetical order, to the extent that funds are available pursuant to this clause (25). 
 (26) The allocations set forth in
clauses (26)(A) and (26)(B) shall be made, to the extent that funds are available pursuant to this clause (26): 
 (A) If there is Shared Credit Enhancement or Class A Cash Collateral Credit Enhancement, an amount equal to the lesser of 
  

	 	(x)	the amount by which the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as applicable, is less than the Maximum Shared Credit
Enhancement Amount or the Maximum Class A Credit Enhancement Amount, as applicable and 

  

 42 









	 	(y)	the product of 

  

	 	(1)	a fraction, the numerator of which is the amount by which the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as applicable, is
less than the Maximum Shared Credit Enhancement Amount or the Maximum Class A Credit Enhancement Amount, as applicable, and the denominator of which is the sum of, for each Series in the Group of which the Series established hereby is a member,
the amount by which the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as applicable, for such Series is less than the Maximum Shared Credit Enhancement Amount or the Maximum Class A Credit
Enhancement Amount, as applicable, for such Series (after giving effect to provisions in the applicable Series Supplements substantially similar to the clauses preceding this clause (26)) and 

  

	 	(2)	the amount on deposit in the Group Finance Charge Collections Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause
in the applicable Series Supplements, 

 shall be withdrawn from the Group Finance Charge Collections Reallocation Account and paid to the
Trustee as administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. Such deposit shall increase the Available Shared Credit Enhancement Amount or the Available Class A Credit
Enhancement Amount, as applicable. 
 (B) If there is a Subordinate Class with respect to Class A, an amount equal to the
lesser of 
  

	 	(x)	the amount by which the Available Class B Credit Enhancement Amount is less than the Maximum Class B Credit Enhancement Amount and 

  

	 	(y)	the product of 

  

	 	(1)	a fraction, the numerator of which is the amount by which the Available Class B Credit Enhancement Amount is less than the Maximum Class B Credit Enhancement Amount and the
denominator of which is the sum of, for each Series in the Group of which the Series established hereby is a member, the amount by which the Available Class B Credit Enhancement Amount for such Series is less than the Maximum Class B Credit
Enhancement Amount for such Series (after giving effect to provisions in the applicable Series Supplements substantially similar to the clauses preceding this clause (26)) and 

  

 43 









	 	(2)	the amount on deposit in the Group Finance Charge Collections Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause
in the applicable Series Supplements, 

 shall be withdrawn from the Group Finance Charge Collections Reallocation Account and paid to the
Trustee as administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. Each of the Available Class B Credit Enhancement Amount and the Available Subordinated Amount shall be
increased by the amount of such deposit. 
 (27) After all allocations from the Group Finance Charge Collections Reallocation
Account to be made pursuant to any other Series Supplement for any Series that is a member of the same Group of which the Series established hereby is a member have been made, an amount equal to the product of (x) a fraction the numerator of
which shall be the Series Investor Interest and the denominator of which shall be the sum of the Series Investor Interests for each Series that is a member of the same Group as the Series established hereby (including the Series established hereby)
and (y) the amount remaining on deposit in the Group Finance Charge Collections Reallocation Account shall be withdrawn from the Group Finance Charge Collections Reallocation Account and paid to the Trustee as administrator of the Credit
Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. Amounts remaining on deposit in the Group Finance Charge Collections Reallocation Account shall be withdrawn from such account and allocated pursuant
to the provisions of the Series Supplements for each other Series that is a member of the same Group as the Series established hereby. 
 (28) For so long as any Series that is not an Interchange Series is outstanding, an amount equal to the lesser of: 
  

	 	(x)	Series Excess Servicing and 

  

	 	(y)	Series Interchange 

 shall be withdrawn from the Series Collections
Account and deposited into the Group Interchange Reallocation Account. 
 (29) Any amounts remaining on deposit in the Series
Collections Account shall be withdrawn from the Series Collections Account and deposited into the Series Principal Collections Account. 
  

 44 








 (30) For so long as any Series that is not an Interchange Series is outstanding, the
allocations set forth in clauses (30)(A) and (30)(B) shall be made, first, with respect to Class A, and then, if there is a Subordinate Class with respect to Class A, the allocations set forth in clauses (30)(A) and
(30)(B) shall be made with respect to Class B, to the extent that funds are available pursuant to this clause (30): 
 (A) An amount equal to the lesser of 
  

	 	(x)	the Class Required Amount Shortfall and 

  

	 	(y)	the product of 

  

	 	(1)	a fraction the numerator of which is the Class Required Amount Shortfall and the denominator of which is the sum of the Class Required Amount Shortfalls for all Classes designated
by the same letter of the alphabet of all Interchange Series in the Group to which the Series established hereby belongs (after giving effect to provisions in the applicable Series Supplements substantially similar to the clauses preceding this
clause (30)) and 

  

	 	(2)	the amount on deposit in the Group Interchange Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause in the
applicable Series Supplements, 

 shall be withdrawn from the Group Interchange Reallocation Account and deposited into the Series Distribution
Account. The Class Required Amount Shortfall shall be reduced by the amount of such deposit. The Available Subordinated Amount shall be increased by the amount of any such deposit that reduces the Class B Required Amount Shortfall. 
 (B) An amount equal to the lesser of 
  

	 	(x)	the Class Cumulative Investor Charged-Off Amount and 

  

	 	(y)	the product of 

  

	 	(1)	a fraction the numerator of which is the Class Cumulative Investor Charged-Off Amount and the denominator of which is the sum of the Class Cumulative Investor Charged-Off Amounts
for all Classes designated by the same letter of the alphabet of all Interchange Series in the Group to which the Series established hereby belongs (after giving effect to provisions in the applicable Series Supplements substantially similar to the
clauses preceding this clause (30)) and 

  

 45 









	 	(2)	the amount on deposit in the Group Interchange Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause in the
applicable Series Supplements, 

 shall be withdrawn from the Group Interchange Reallocation Account and deposited into the Series Principal
Collections Account. The Class Cumulative Investor Charged-Off Amount shall be reduced by the amount of such deposit. The Available Subordinated Amount shall be increased by the amount of any such deposit that reduces the Class B Cumulative Investor
Charged-Off Amount. 
 (C) After the allocations set forth in clauses (30)(A) and (30)(B) are made with respect to
Class A and Class B, then, if there are one or more Subordinate Classes other than Class B, the allocations set forth in clauses (30)(A) and (30)(B) shall be made with respect to each other such Class, in alphabetical order, to the
extent that funds are available pursuant to this clause (30). 
 (31) For so long as any Series that is not an Interchange
Series is outstanding, the allocations set forth in clauses (31)(A) and (31)(B) shall be made, to the extent that funds are available pursuant to this clause (31): 
 (A) If there is Shared Credit Enhancement or Class A Cash Collateral Credit Enhancement, an amount equal to the lesser of 

 

	 	(x)	the amount by which the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as applicable, is less than the Maximum Shared Credit
Enhancement Amount or the Maximum Class A Credit Enhancement Amount, as applicable and 

  

	 	(y)	the product of 

  

	 	(1)	 a fraction, the numerator of which is the amount by which the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as
applicable, is less than the Maximum Shared Credit Enhancement Amount or the Maximum Class A Credit Enhancement Amount, as applicable, and the denominator of which is the sum of, for each Interchange Series in the Group to which the Series
established hereby 



  

 46 









	 	 
belongs, the amount by which the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as applicable, for such
Series is less than the Maximum Shared Credit Enhancement Amount or the Maximum Class A Credit Enhancement Amount, as applicable, for such Series (after giving effect to provisions in the applicable Series Supplements substantially similar to
the clauses preceding this clause (31)) and 


  

	 	(2)	the amount on deposit in the Group Interchange Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause in the
applicable Series Supplements, 

 shall be withdrawn from the Group Interchange Reallocation Account and paid to the Trustee as administrator
of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. Such deposit shall increase the Available Shared Credit Enhancement Amount or the Available Class A Credit Enhancement Amount, as
applicable. 
 (B) If there is a Subordinate Class with respect to Class A, an amount equal to the lesser of 

 

	 	(x)	the amount by which the Available Class B Credit Enhancement Amount is less than the Maximum Class B Credit Enhancement Amount and 

  

	 	(y)	the product of 

  

	 	(1)	a fraction, the numerator of which is the amount by which the Available Class B Credit Enhancement Amount is less than the Maximum Class B Credit Enhancement Amount and the
denominator of which is the sum of, for each Interchange Series in the Group to which the Series established hereby belongs, the amount by which the Available Class B Credit Enhancement Amount for such Series is less than the Maximum Class B Credit
Enhancement Amount for such Series (after giving effect to provisions in the applicable Series Supplements substantially similar to the clauses preceding this clause (31)) and 

  

 47 









	 	(2)	the amount on deposit in the Group Interchange Reallocation Account before any withdrawals therefrom with respect to any other Series pursuant to a comparable clause in the
applicable Series Supplements, 

 shall be withdrawn from the Group Interchange Reallocation Account and paid to the Trustee as
administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. Each of the Available Class B Credit Enhancement Amount and the Available Subordinated Amount shall be increased by the
amount of such deposit. 
 (32) After all allocations from the Group Interchange Reallocation Account to be made pursuant to
any other Series Supplement for any Interchange Series that is a member of the same Group of which the Series established hereby is a member have been made, an amount equal to the product of (x) a fraction the numerator of which shall be the
Series Investor Interest and the denominator of which shall be the sum of the Series Investor Interests for each Interchange Series in the Group to which the Series established hereby belongs (including the Series established hereby) and
(y) the amount remaining on deposit in the Group Interchange Reallocation Account shall be withdrawn from the Group Interchange Reallocation Account and paid to the Trustee as administrator of the Credit Enhancement for application in
accordance with the provisions of the Credit Enhancement Agreement. 
 (33) The Net Swap Receipt, to the extent paid to the
Trustee by the Interest Rate Swap Counterparty pursuant to the Class Interest Rate Swap, shall be deposited in the Series Collections Account. 
 (34) Any amount remaining on deposit in the Series Collections Account will be withdrawn from the Series Collections Account and paid to the Holder of the Seller Certificate. 
 (35) Unless the Distribution Date is a Distribution Date in the Revolving Period, the lesser of 
  

	 	(x)	the Principal Distribution Amount and 

  

	 	(y)	the amount on deposit in the Series Principal Collections Account 

 shall
be withdrawn from the Series Principal Collections Account and deposited into the Series Principal Funding Account. The amount by which the Principal Distribution Amount exceeds the amount of such deposit shall be the “Principal Distribution
Amount Shortfall.” 
 (36) Unless the Distribution Date is a Distribution Date in the Revolving Period, the lesser of

  

	 	(x)	the Principal Distribution Amount Shortfall and 

  

	 	(y)	funds, if any, available to pay such Principal Distribution Amount Shortfall from funds initially allocated to any Subordinate Series 

  

 48 








 shall be deposited into the Series Principal Funding Account. The Principal Distribution Amount Shortfall shall be
reduced by the amount of such deposit. 
 (37) Any amounts remaining on deposit in the Series Principal Collections Account
shall be withdrawn from the Series Principal Collections Account and be deposited into the Group Principal Collections Reallocation Account. 
 (38) During the Accumulation Period or the Controlled Liquidation Period, as applicable, the allocation set forth below shall be made with respect to each Class, beginning with Class A and continuing, seriatim,
for each Class, to the extent that funds are available pursuant to this clause (38): 
 An amount equal to the lesser of

  

	 	(x)	the portion of the Principal Distribution Amount Shortfall that is allocable to such Class and 

  

	 	(y)	the product of 

  

	 	(1)	a fraction the numerator of which is the portion of the Principal Distribution Amount Shortfall that is allocable to such Class and the denominator of which is the sum of the
portions of the Principal Distribution Amount Shortfalls allocable to all Classes designated by the same letter of the alphabet of all Series in the Group to which the Series established hereby belongs that are in their Accumulation Periods or
Controlled Liquidation Periods, as applicable (after giving effect to provisions in the applicable Series Supplements substantially similar to the clauses preceding this clause (38)) and 

  

	 	(2)	the amount on deposit in the Group Principal Collections Reallocation Account before any withdrawals therefrom with respect to any other Series 

 shall be withdrawn from the Group Principal Collections Reallocation Account and deposited into the Series Principal Funding Account. The Principal Distribution Amount
Shortfall shall be reduced by the amount of such deposit. 
 (39) After all allocations from the Group Principal Collections
Reallocation Account to be made pursuant to any other Series Supplement for any Series that is a member of the same Group of which the Series established hereby is a member have been made, the amount remaining on deposit in the Group Principal
Collections Reallocation Account shall be withdrawn from the Group Principal Collections Reallocation Account and deposited into the Collections Account. 
  

 49 








 (40) After all other allocations have been provided for with respect to each Series then
outstanding (whether or not such Series is a member of the same Group as the Series established hereby), the lesser of 
  

	 	(x)	the amount of the Seller Interest and 

  

	 	(y)	the amount on deposit in the Collections Account 

 shall be paid to the
Holder of the Seller Certificate. If, after such payment, any amounts remain on deposit in the Collections Account, such amounts shall remain in the Collections Account for allocation as Principal Collections on the next Trust Distribution Date.

 SECTION 10. Payments. 
 (a) Payments. 
 (1) On each Distribution Date related to a Due Period in the Accumulation Period or the Early
Accumulation Period, and on the first Distribution Date of the Amortization Period, the Master Servicer shall direct the Trustee in writing to withdraw the amount of Excess Income, if any, on deposit in the Series Principal Funding Account from the
Series Principal Funding Account and pay such amount to the Holder of the Seller Certificate. 
 (2) On each Distribution
Date, after giving effect to payments made pursuant to Section 9 and the calculation of Investor Losses and adjustment of the Class Investor Interest and Class Invested Amount with respect to each Class pursuant to Section 13, the Master
Servicer shall direct the Trustee in writing to withdraw and cause the Paying Agent to pay funds from the applicable Investor Account to or for the benefit of each Class of Investor Certificateholders, seriatim, with respect to each Class, beginning
with Class A, until such payments have been made with respect to each Class, as set forth below: 
 (A) First, an amount
equal to the lesser of 
  

	 	(x)	the Class Modified Required Amount and 

  

	 	(y)	the amount on deposit in the Series Distribution Account. 

 shall be
withdrawn from the Series Distribution Account and deposited into the Series Interest Funding Account. The amount by which the Class Modified Required Amount exceeds the amount so deposited into the Series Interest Funding Account shall be the
“Class Monthly Deficiency Amount” with respect to such Distribution Date. 
 (B) Second, an amount equal to the
lesser of 
  

	 	(x)	the sum of the Class Monthly Servicing Fee for such Distribution Date and all accrued but unpaid Class Monthly Servicing Fees from prior months and 

  

 50 









	 	(y)	the amount deposited into the Series Distribution Account with respect to such Class on such Distribution Date pursuant to Section 9 less the amount deposited into the
Series Interest Funding Account with respect to such Class pursuant to clause (A) above 

 shall be withdrawn from the Series Distribution
Account and paid to the Master Servicer. 
 (3) On each Interest Payment Date, the Master Servicer shall direct the Trustee in
writing to deposit into the Series Interest Funding Account any Class Interest Rate Cap Payment made by any Interest Rate Cap Provider for any Class or Subclass pursuant to the Class Interest Rate Cap for such Class or Subclass. 
 (4) On each Interest Payment Date, after giving effect to the payments described above on such day, the Master Servicer shall direct the
Trustee in writing to withdraw the amount deposited into the Series Interest Funding Account with respect to each Class or Subclass since the preceding Interest Payment Date. The Master Servicer shall cause the Paying Agent to pay such amount on
each Interest Payment Date to the Investor Certificateholders of such Class or Subclass in accordance with Section 5.01 of the Pooling and Servicing Agreement. 
 (5) On each Interest Payment Date (or, following the early termination of the Class Interest Rate Swap, on each Distribution Date), the
Master Servicer shall direct the Trustee in writing to withdraw any Net Swap Payment from the Interest Rate Swap Account and pay such amount to the Interest Rate Swap Counterparty in accordance with the provisions of the Class Interest Rate Swap.

 (6) On each Principal Payment Date, after giving effect to the payments described above on such day, an amount equal to the
lesser of 
  

	 	(x)	the Controlled Liquidation Amount and 

  

	 	(y)	the amount deposited into the Series Principal Funding Account on any Distribution Date pursuant to Section 9 

 shall be withdrawn from the Series Principal Funding Account. The Master Servicer shall cause the Paying Agent to pay such amount to the Investor Certificateholders of
such Class or Subclass in accordance with Section 5.01 of the Pooling and Servicing Agreement. Except as set forth in the following sentence, all such amounts shall be paid to or with respect to the Class A Investor Certificateholders
until the Class A Invested Amount is reduced to zero; and, thereafter, if there is a Subordinate Class with respect to Class A, such amounts shall be paid to or with respect to the Class B Investor Certificateholders until the Class B
Invested Amount is reduced to zero, unless the Series Termination Date occurs prior to such date; provided, however, that on the Fully Funded Date, if any, the Class B Invested Amount shall be withdrawn from the Series Principal Funding
Account and paid to the Class B Investor Certificateholders. In no event shall any amounts be paid with respect to any Class of Investor Certificates pursuant to this clause (6) in excess of the Class Invested Amount for such Class. Any amounts
remaining on deposit in the Series Principal Funding Account after the Class Invested Amount for each Class has been reduced to zero shall be paid to the Holder of the Seller Certificate. 
  

 51 








 (7) On each Special Payment Date during the Amortization Period, after giving effect to
the payments described above on such day, an amount equal to the lesser of 
  

	 	(x)	the Principal Distribution Amount and 

  

	 	(y)	the amount deposited into the Series Principal Funding Account on such Special Payment Date pursuant to Section 9 

 shall be withdrawn from the Series Principal Funding Account. The Master Servicer shall cause the Paying Agent to pay such amount to the Investor Certificateholders of
such Class or Subclass in accordance with Section 5.01 of the Pooling and Servicing Agreement. Except as set forth in the following sentence, all such amounts shall be paid to or with respect to the Class A Investor Certificateholders
until the Class A Invested Amount is reduced to zero; and, thereafter, if there is a Subordinate Class with respect to Class A, such amounts shall be paid to or with respect to the Class B Investor Certificateholders until the Class B
Invested Amount is reduced to zero, unless the Series Termination Date occurs prior to such date. In no event shall any amounts be paid with respect to any Class of Investor Certificates pursuant to this clause (7) in excess of the Class
Invested Amount for such Class. Any amounts remaining on deposit in the Series Principal Funding Account after the Class Invested Amount for each Class has been reduced to zero shall be paid to the Holder of the Seller Certificate. 
 (8) On the first Distribution Date of the Amortization Period, if any, after giving effect to the payments and withdrawals and conversions
described above on such day, an amount equal to the lesser of 
  

	 	(x)	the Series Invested Amount and 

  

	 	(y)	the amount on deposit in the Series Principal Funding Account 

 shall be
withdrawn from the Series Principal Funding Account. The Master Servicer shall cause the Paying Agent to pay such amount to the Investor Certificateholders of such Class or Subclass in accordance with Section 5.01 of the Pooling and Servicing
Agreement. Except as set forth in the following sentence, all such amounts shall be paid to or with respect to the Class A Investor Certificateholders until the Class A Invested Amount is reduced to zero; and, thereafter, if there is a
Subordinate Class with respect to Class A, such amounts shall be paid to or with respect to the Class B Investor Certificateholders until the Class B Invested Amount is reduced to zero, unless the Series Termination Date occurs prior to such
date. In no event shall any amounts be paid with respect to any Class of Investor Certificates pursuant to this clause (8) in excess of the Class Invested Amount for such Class. Any amounts remaining on deposit in the Series Principal Funding
Account after the Class Invested Amount for each Class has been reduced to zero shall be paid to the Holder of the Seller Certificate. 
  

 52 








 (9) On the Class Expected Final Payment Date or the Class Final Maturity Date, if
applicable (or, if such Class Expected Final Payment Date or Class Final Maturity Date is not also a Distribution Date, on the Distribution Date occurring in the same calendar month as the Class Expected Final Payment Date or the Class Final
Maturity Date, if applicable), the Master Servicer shall direct the Trustee in writing to withdraw the amount on deposit in the Series Principal Funding Account with respect to each Class; provided that (i) such amount shall be no greater than
the Class Invested Amount and (ii) funds, if any, remaining on deposit in the Series Principal Funding Account after the payment in full of the Class Invested Amount with respect to each Class shall be withdrawn and paid to the Holder of the
Seller Certificate. The Master Servicer shall cause the Paying Agent to pay such amount to the Investor Certificateholders of such Class or Subclass in accordance with Section 5.01 of the Pooling and Servicing Agreement. 
 (b) Payments to the Sellers and/or the Master Servicer. Notwithstanding the other provisions in Section 9 and this Section 10,
any amounts payable to Discover Bank on behalf of the Holder of the Seller Certificate or to the Master Servicer on any Distribution Date pursuant to Section 9 and this Section 10 may be paid prior to such Distribution Date pursuant to
Section 4.03(d) of the Pooling and Servicing Agreement. 
 SECTION 11. Credit Enhancement. 
 (a) Initial Credit Enhancement. The Master Servicer hereby represents with respect to the Initial Credit Enhancement and shall be deemed to
represent with respect to any successor Credit Enhancement that (i) the Master Servicer has provided for the Credit Enhancement for the account of the Trustee and for the benefit of the Investor Certificateholders, (ii) the Master Servicer
has entered into a Credit Enhancement Agreement, (iii) the Credit Enhancement permits the Trustee or the Master Servicer, acting as the Trustee’s attorney-in-fact or otherwise, to make Credit Enhancement Drawings from time to time in an
amount up to the Total Available Credit Enhancement Amount at such time, for the purposes set forth in this Agreement and (iv) the Credit Enhancement and the respective Credit Enhancement Agreement may be terminated by the Trustee without
penalty if (x) the Master Servicer elects to obtain a successor Credit Enhancement and such successor Credit Enhancement does not cause the ratings of the Investor Certificates of the Series established hereby to be withdrawn or lowered by
either of the Rating Agencies from the respective ratings of such Investor Certificates immediately prior to such election or (y) if the Credit Enhancement is not Funded Credit Enhancement, the Credit Enhancement Provider ceases to be a
Qualified Credit Enhancement Provider. 
 (b) Successor Credit Enhancement. 
 (i) If the Credit Enhancement is not Funded Credit Enhancement and if, at any time, the provider of such Credit Enhancement ceases to be a
Qualified Credit Enhancement Provider, the Master Servicer shall obtain a successor Credit Enhancement within 30 days or such longer period as will not result in the lowering or withdrawal of the rating of any Class of any Series then outstanding by
the Rating Agencies (a) which, if such successor Credit Enhancement is not to be Funded Credit Enhancement, will be issued by a Qualified Credit Enhancement Provider and (b) with respect to which the representations set forth in
Section 11(a) will be satisfied; provided, however, that the Master Servicer shall not be required to continue efforts to obtain a successor Credit Enhancement if the then existing Credit Enhancement Provider again becomes a Qualified
Credit 

  

 53 








 
Enhancement Provider and remains such; and, provided, further, that unless otherwise agreed to by the Rating Agencies, the Credit Enhancement and
Credit Enhancement Agreement will not be terminated and no successor Credit Enhancement Provider shall be selected if the successor Credit Enhancement, the successor Credit Enhancement Agreement, or the selection of such successor Credit Enhancement
Provider would cause the ratings of the Investor Certificates of the Series established hereby to be withdrawn or lowered by either Rating Agency from the respective ratings of such Investor Certificates immediately prior to such selection. The
Master Servicer, the Trustee and the Sellers shall promptly enter into any such successor Credit Enhancement Agreement, and the Master Servicer shall use its best efforts to secure the signature of any other required party to such agreement.

 (ii) Regardless of whether the Credit Enhancement is Funded Credit Enhancement, the Master Servicer may elect, at any time,
to obtain a successor Credit Enhancement, provided that such successor Credit Enhancement does not cause the ratings of the Investor Certificates of the Series established hereby to be withdrawn or lowered by either of the Rating Agencies from the
respective ratings of such Investor Certificates immediately prior to such election. 
 (iii) In any case, subject to the
foregoing, any successor Credit Enhancement obtained by the Master Servicer need not consist of the same type of Credit Enhancement as the Initial Credit Enhancement, but may consist of a different type of facility, including, but not limited to, a
reserve account, a cash collateral account, an irrevocable standby letter of credit, a surety bond or a combination of any of the above. Upon issuance of, or other provision for, any such successor Credit Enhancement, the Trustee shall terminate the
prior Credit Enhancement and Credit Enhancement Agreement. 
 (c) Supplemental Credit Enhancement Event. Upon the occurrence of a
Supplemental Credit Enhancement Event, Discover Bank as Servicer shall, within 60 days of notice from Standard & Poor’s of the withdrawal or downgrade (or such longer period as may be agreed to by Standard & Poor’s),
arrange for the payment of the Supplemental Credit Enhancement Amount, if any, by a Person other than Discover Bank to the Trustee as administrator of the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement
Agreement. Both the form and the provider of the Supplemental Credit Enhancement Amount, if any, shall be determined at the time it is to be paid; provided, that the Master Servicer shall have received confirmation from Standard &
Poor’s that the arrangements with respect to the Supplemental Credit Enhancement Amount, if any, will not result in the rating of the Investor Certificates of the Series established hereby being withdrawn or lowered. In addition to the
foregoing, the Master Servicer shall notify Moody’s of the occurrence of a Supplemental Credit Enhancement Event as soon as practicable after such occurrence, and shall notify Moody’s in advance of its implementation of the form and
provider of the Supplemental Credit Enhancement Amount, if any. 
  

 54 








 SECTION 12. Alternative Credit Support Election. 
 (a) The Sellers may elect to effect a change in the calculation of the Class Percentage with respect to Finance Charge Collections during the Early
Accumulation Period or the Amortization Period, as set forth in the definition of “Class Percentage,” and increase the Available Class B Credit Enhancement Amount, by making an Alternative Credit Support Election. An Alternative Credit
Support Election may be made as follows: 
 (i) at any time during the Revolving Period, Discover Bank on behalf of the Holder
of the Seller Certificate shall deliver written notice of such Alternative Credit Support Election to the Rating Agencies, the Trustee and the Credit Enhancement Provider; 
 (ii) prior to the last day of the Revolving Period, the Additional Credit Support Amount shall be paid to the Trustee as administrator of
the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement; provided, however, that following an Early Accumulation Event or an Amortization Event, the Additional Credit Support Amount may be
paid to the Trustee as administrator of the Credit Enhancement at any time on or prior to the last day of the Due Period in which the Early Accumulation Event or the Amortization Event occurs; 
 (iii) prior to the last day of the Revolving Period (or, following an Early Accumulation Event or an Amortization Event during the
Revolving Period, on or prior to the last day of the Due Period in which the Early Accumulation Event or the Amortization Event occurs), the Rating Agencies shall have confirmed that the Alternative Credit Support Election shall not cause a
reduction in or withdrawal of the rating of any Class of Investor Certificates of the Series established hereby; and 
 (iv)
prior to the last day of the Revolving Period (or, following an Early Accumulation Event or an Amortization Event during the Revolving Period, on or prior to the last day of the Due Period in which the Early Accumulation Event or the Amortization
Event occurs), Discover Bank on behalf of the Holder of the Seller Certificate shall have delivered to the Rating Agencies written confirmation that the conclusions reached in the legal opinions delivered on the Initial Closing Date regarding the
absolute transfer of the Receivables and the security interest of the Trust in the Receivables are not affected by the Alternative Credit Support Election. 
 (b) If each of the actions set forth in Section 12(a) above has been taken or satisfied as required, the Alternative Credit Support Election shall become effective on the last day of the Due Period in which the
Additional Credit Support Amount has been paid to the Trustee as administrator of the Credit Enhancement (an “Effective Alternative Credit Support Election”). 
 (c) At any time until the Alternative Credit Support Election becomes effective, such Alternative Credit Support Election may be cancelled upon notice to the Rating Agencies, the Trustee and the Credit Enhancement
Provider. Thereafter, the Additional Credit Support Amount, if any, shall be returned by the Trustee as administrator of the Credit Enhancement in accordance with the Credit Enhancement Agreement. 
  

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 SECTION 13. Calculation of Investor Losses. 
 (a) For each Distribution Date, the Master Servicer shall calculate the Class Investor Charged-Off Amount and the Class Cumulative Investor Charged-Off
Amount with respect to each Class, in each case as of the end of the related Due Period. 
 (b) If on any Distribution Date, the Class
Investor Charged-Off Amount with respect to any Class exceeds the Class Charge-Off Reimbursement Amount with respect to such Class, the Class Investor Interest and the Class Invested Amount for such Class shall each be reduced by the amount of such
excess (an “Investor Charge-Off Loss” with respect to such Class). 
 (c) On each Distribution Date the Class Investor Interest and
the Class Invested Amount for each Class shall be increased by, and the amount of aggregate unreimbursed Investor Losses for each such Class shall be decreased by, the positive difference, if any, between the Class Charge-Off Reimbursement Amount on
such Distribution Date and the Class Investor Charged-Off Amount for such Distribution Date; provided, however, that neither the Class Invested Amount nor the Class Investor Interest shall exceed the Class Initial Investor Interest (after
giving effect to any increase therein pursuant to Section 31) for such Class minus the sum of (x) the aggregate amount of payments of Certificate Principal paid to the Investor Certificateholders of such Class prior to such
Distribution Date, (y) in the case of the Class Investor Interest, the amount on deposit in the Series Principal Funding Account for the benefit of such Class in respect of Certificate Principal and (z) the aggregate amount of losses, if
any, on investments of principal of funds on deposit in the Series Principal Funding Account for the benefit of such Class; and provided, further, that the amount of Investor Losses with respect to any Class shall not be reduced to an amount
less than zero. 
 SECTION 14. Servicing Compensation. As compensation for its servicing activities hereunder and under the Pooling
and Servicing Agreement and reimbursement of its expenses as set forth in Section 3.03 of the Pooling and Servicing Agreement, the Master Servicer shall be entitled to receive the Class Monthly Servicing Fees with respect to the Series
established hereby in respect of any Due Period (or portion thereof) prior to the earlier of the date on which the Series Investor Interest is reduced to zero and the Series Termination Date. The Class Monthly Servicing Fees shall be paid to the
Master Servicer on behalf of each Class on each Distribution Date pursuant to Section 10. 
 SECTION 15. Class Interest Rate
Caps. 
 (a) In the event that the Master Servicer has obtained a Class Interest Rate Cap in favor of the Trustee for the benefit of a
Class or Subclass that does not have a fixed or maximum Certificate Rate, the Master Servicer hereby represents that such Class Interest Rate Cap provides that (i) the Trust shall not be required to make any payments thereunder and
(ii) the Trust shall be entitled to receive payments (determined in accordance with the Class Interest Rate Cap) from the Interest Rate Cap Provider on an Interest Payment Date if LIBOR or the Commercial Paper Rate, as applicable, for the
related Calculation Period exceeds the Class Cap Rate for the applicable Class or Subclass. Any Class Interest Rate Cap Payment shall be deposited into the Series Interest Funding Account. 
  

 56 








 (b) In the event that the commercial paper or certificate of deposit rating of the Interest Rate Cap
Provider is withdrawn or reduced below the ratings specified in the Series Term Sheet (or, in either case, such lower rating as the applicable Rating Agency shall allow), then within 30 days after receiving notice of such decline in the
creditworthiness of the Interest Rate Cap Provider as determined by either Rating Agency, either (x) the Interest Rate Cap Provider, with the prior confirmation of the Rating Agencies that such arrangement will not result in the reduction or
withdrawal of the rating of any Investor Certificates of the Series established hereby, will enter into an arrangement the purpose of which shall be to assure performance by the Interest Rate Cap Provider of its obligations under the Class Interest
Rate Caps; or (y) the Master Servicer shall at its option either (i) with the prior confirmation of the Rating Agencies that such action will not result in a reduction or withdrawal of the rating of any Investor Certificates of the Series
established hereby, cause the Interest Rate Cap Provider to pledge securities in the manner provided by applicable law, which shall be held by the Trustee or its agent free and clear of the Lien of any third party, in a manner conferring on the
Trustee a perfected first Lien in such securities securing the Interest Rate Cap Provider’s performance of its obligations under the Class Interest Rate Caps, or (ii) provided that Replacement Class Interest Rate Caps or Qualified
Substitute Cap Arrangements meeting the requirements of Section 15(c) have been obtained, direct the Trustee (A) to provide written notice to the Interest Rate Cap Provider of its intention to terminate the Class Interest Rate Caps within
such 30-day period and (B) to terminate the Class Interest Rate Caps within such 30-day period, to request the payment to it of all amounts due to the Trust under the Class Interest Rate Caps through the termination date and to deposit any such
amounts so received, on the day of receipt, to the Series Interest Funding Account, or (iii) establish any other arrangement (including an arrangement or arrangements in addition to or in substitution for any prior arrangement made in
accordance with the provisions of this Section 15(b)) satisfactory to the Rating Agencies such that the Rating Agencies will not reduce or withdraw the rating of any Investor Certificates of the Series established hereby (a “Qualified
Substitute Cap Arrangement”); provided, however, that in the event at any time any alternative arrangement established pursuant to clause (x) or (y)(i) or (y)(iii) above shall cease to be satisfactory to the Rating Agencies then the
provisions of this Section 15(b) shall again be applied and in connection therewith the 30-day period referred to above shall commence on the date the Master Servicer receives notice of such cessation. 
 (c) Unless an alternative arrangement pursuant to clause (x) or (y)(i) of Section 15(b) is being established, the Master Servicer shall use its
best efforts to obtain Replacement Class Interest Rate Caps or Qualified Substitute Cap Arrangements meeting the requirements of this Section 15(c) during the 30-day period referred to in Section 15(b). The Trustee shall not terminate the
Class Interest Rate Caps unless, prior to the expiration of the 30-day period referred to in Section 15(b), the Master Servicer delivers to the Trustee (i) Replacement Class Interest Rate Caps or Qualified Substitute Cap Arrangements,
(ii) to the extent applicable, an Opinion of Counsel as to the due authorization, execution and delivery and validity and enforceability of each such Replacement Class Interest Rate Cap or Qualified Substitute Cap Arrangement, as the case may
be, and (iii) confirmation from each Rating Agency that the termination of the Class Interest Rate Caps and their replacement with such Replacement Class Interest Rate Caps or Qualified Substitute Cap Arrangements will not adversely affect its
rating of the Investor Certificates of the Series established hereby. 
  

 57 








 (d) Master Servicer shall notify the Trustee, the Rating Agencies and the Credit Enhancement Provider
within five Business Days after obtaining knowledge that the commercial paper or certificate of deposit rating of the Interest Rate Cap Provider has been withdrawn or reduced by either Rating Agency. 
 (e) Notwithstanding the foregoing, the Master Servicer may at any time obtain Replacement Class Interest Rate Caps, provided that the Master Servicer
delivers to the Trustee (i) an Opinion of Counsel as to the due authorization, execution and delivery and validity and enforceability of such Replacement Class Interest Rate Caps and (ii) confirmation from the Rating Agencies that the
termination of the then current Class Interest Rate Caps and their replacement with such Replacement Class Interest Rate Caps will not adversely affect the rating of the Investor Certificates of the Series established hereby. 
 (f) The Trustee hereby appoints the Master Servicer to perform the duties of the calculation agent under the Class Interest Rate Caps and the Master
Servicer accepts such appointment. 
 SECTION 16. Class Interest Rate Swaps. In the event that the Investor Certificates of any Class
are subject to a Class Interest Rate Swap, the Trust will enter into a Class Interest Rate Swap in a form approved by the Master Servicer. Pursuant to the terms of the Class Interest Rate Swap, the Interest Rate Swap Counterparty shall pay to the
Trust the Net Swap Receipt or the Trust shall pay to the Interest Rate Swap Counterparty the Net Swap Payment, as applicable. If the Trust does not receive payment from the Interest Rate Swap Counterparty on each Interest Payment Date (if due), the
Trustee, on behalf of the Trust, shall attempt to determine from the Interest Rate Swap Counterparty the reasons therefore and whether such payment is to be made by the Interest Rate Swap Counterparty on such Interest Payment Date. If the Class
Interest Rate Swap has not been terminated and the Trust has not received any payment due from the Interest Rate Swap Counterparty on the related Interest Payment Date, the Trustee shall notify the Master Servicer of such fact prior to 1:00 p.m.
Chicago time on such Interest Payment Date. 
 SECTION 17. Investor Certificateholders’ Monthly Statement. On each Statement
Date, a statement substantially in the form of Exhibit B-2 to Subseries 2 and as prepared by the Trustee (based on information provided by the Master Servicer) setting forth the information listed thereon shall be available from the Trustee, each
Paying Agent and, if applicable, the Listing Agent. 
 SECTION 18. Master Servicer’s Monthly Certificate. On or before the second
Business Day preceding each Statement Date, the Master Servicer shall forward to Discover Bank on behalf of the Holder of the Seller Certificate, the Trustee and each Paying Agent a certificate of a Servicing Officer substantially in the form of
Exhibit C-2 for Subseries 2 setting forth the information listed thereon. 
 SECTION 19. Notices. Any notices to holders of Investor
Certificates issued in bearer form shall be given as described in the Series Term Sheet. 
  

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 SECTION 20. Additional Amortization Events. If any one of the following events shall occur:

 (a) after giving effect to payments and distributions on the Class Expected Final Payment Date or the Class Final Maturity Date, as
applicable, with respect to any Class, the Class Invested Amount for such Class is not reduced to zero; 
 (b) if applicable, following
either (i) the withdrawal or reduction of the commercial paper or certificate of deposit rating of any Interest Rate Cap Provider to below the ratings specified in the Series Term Sheet (or, in either case, such lower rating as the applicable
Rating Agency has allowed) or (ii) notice from either Rating Agency that any Qualified Substitute Cap Arrangement or any other arrangement established pursuant to Section 15 is no longer satisfactory to such Rating Agency, the Master
Servicer shall fail, within the applicable time period specified in Section 15, to (x) obtain Replacement Class Interest Rate Caps or Qualified Substitute Cap Arrangements or (y) cause the Interest Rate Cap Provider to pledge
securities as collateral securing the obligations of the Interest Rate Cap Provider or establish any other arrangement as provided in Section 15, in each case in a manner satisfactory to the Trustee and the Rating Agencies (such that neither
Rating Agency will reduce or withdraw the ratings of the Investor Certificates of the Series established hereby); or 
 (c) if the amount of
Principal Receivables in the Trust at the end of any Due Period for three consecutive Due Periods of the Early Accumulation Period shall be less than the Minimum Principal Receivables Balance and Discover Bank shall have failed to assign Receivables
in Additional Accounts or Participation Interests to the Trust in at least the amount of the deficiency by the tenth day of the calendar month of the following Due Period; 
 an Amortization Event shall occur with respect to the Investor Certificates of the Series established hereby, immediately upon the occurrence of such event. If an Amortization Event described in this Section 20
shall occur, this Section 20 constitutes written notice by the Trustee and not less than 51% of the Class Invested Amount of each Class of the Series established hereby to the Master Servicer and the Sellers that such Amortization Event has
occurred. No additional notice of any kind, which is hereby waived by the Sellers and the Master Servicer, shall be required as a condition of the occurrence of any Amortization Event described in this Section 20. In addition, the events set
forth in Section 21 shall constitute either Early Accumulation Events or additional Amortization Events with respect to the Series established hereby. 
 SECTION 21. Early Accumulation Events; Additional Amortization Events. If the Series established hereby is eligible to have an Early Accumulation Period, each of the events described in clause (a), (b), (g),
(i) or (j) of Section 9.01 of the Pooling and Servicing Agreement shall not be Amortization Events but shall instead be Early Accumulation Events. In addition, for purposes of this Series Supplement, each of the following events shall
be (i) Early Accumulation Events, if the Series established hereby is eligible to have an Early Accumulation Period, or (ii) Amortization Events, if the Series established hereby is not eligible to have an Early Accumulation Period:

 (a) on any Distribution Date, the three month rolling average Series Excess Spread is less than the Series Buffer Amount, the three month
rolling average Group Excess Spread is less than the Group Buffer Amount and for so long as any Series that is not an Interchange Series is outstanding, the three month rolling average Interchange Subgroup Excess Spread is less than the Interchange
Subgroup Buffer Amount; 
  

 59 








 (b) if a Supplemental Credit Enhancement Event shall have occurred and Discover Bank as Servicer shall
have failed to arrange for the Supplemental Credit Enhancement in accordance with the requirements of Section 11(c) hereof (including, without limitation, receipt of the confirmation from Standard & Poor’s required thereby).

 If any event described in clause (a), (b), (g), (i) or (j) of Section 9.01 of the Pooling and Servicing Agreement occurs, an Early
Accumulation Event shall occur with respect to the Investor Certificates of such Class only if the event has a material adverse effect on the Investor Certificateholders of such Class and if, after the applicable grace period described in those
clauses, either the Trustee declares or the Investor Certificateholders of such Class evidencing Fractional Undivided Interests aggregating not less than 51% of the Class Invested Amount for either Class declare by written notice to Discover Bank
and the Master Servicer (and to the Trustee if given by the Investor Certificateholders) that an Early Accumulation Event has occurred as of the date of the notice. In the case of any event described in clause (a) or (b) of this
Section 21, an Early Accumulation Event shall occur with respect to the Investor Certificates of such Class immediately upon the occurrence of the event without any notice or other action on the part of the Trustee or the Investor
Certificateholders of such Class. On the date on which an Early Accumulation Event is deemed to have occurred the Early Accumulation Period will commence. 
 SECTION 22. Purchase of Investor Certificates and Series Termination. 
 (a) If as of any Distribution
Date during the Amortization Period (after giving effect to any payments calculated pursuant to Section 9 made on such Distribution Date) the Series Investor Interest of the Series established hereby is less than or equal to 5% of the Series
Initial Investor Interest, Discover Bank on behalf of the Holder of the Seller Certificate may purchase and cancel the Investor Certificates of the Series established hereby by depositing into the Series Distribution Account, on the immediately
succeeding Distribution Date, an amount equal to the Series Investor Interest as of the last day of the Due Period related to such immediately succeeding Distribution Date. The Master Servicer shall direct the Trustee in writing to withdraw the
amount allocable to such Class from the Series Distribution Account and pay such amount to the Investor Certificateholders of such Class pursuant to Section 12.02 of the Pooling and Servicing Agreement. All Investor Certificates of the Series
established hereby that are purchased by Discover Bank on behalf of the Holder of the Seller Certificate pursuant to this Section 22(a) shall be delivered by Discover Bank on behalf of the Holder of the Seller Certificate upon such purchase to,
and be cancelled by, the Transfer Agent and be disposed of in a manner satisfactory to the Trustee and Discover Bank on behalf of the Holder of the Seller Certificate. 
  


 60 








 (b) If as of any Distribution Date during the Accumulation Period, the Early Accumulation Period or the
Controlled Liquidation Period, as applicable (after giving effect to any payments calculated pursuant to Section 9 made on such Distribution Date), the Series Investor Interest of the Series established hereby is less than or equal to 5% of the
Series Initial Investor Interest (before giving effect to any reduction in the Series Initial Investor Interest pursuant to Section 6.14 of the Pooling and Servicing Agreement), Discover Bank on behalf of the Holder of the Seller Certificate
may, but shall not be obligated to, purchase the Investor Certificates of the Series established hereby by depositing into the Series Principal Funding Account, on such Distribution Date, an amount equal to such Series Investor Interest. After
giving effect to such deposit, such Series Investor Interest shall be reduced to zero, and the Seller Interest shall be increased by the amount of such deposit. 
 (c) Following the sale of Receivables pursuant to Section 12.02 of the Pooling and Servicing Agreement, the Master Servicer shall direct the Trustee in writing to withdraw the amount allocable to each Class from
the Series Distribution Account and pay such amount to the Investor Certificateholders of such Class pursuant to Section 12.02 of the Pooling and Servicing Agreement. 
 SECTION 23. Variable Accumulation Period. If the Series Term Sheet for the Series established hereby so provides, the Master Servicer may
elect, by written notice to the Trustee, Discover Bank on behalf of the Holder of the Seller Certificate and the Credit Enhancement Provider, to delay the commencement of the Accumulation Period, and extend the length of the Revolving Period,
subject to the conditions set forth in this Section 23; provided, however, that the Accumulation Period shall commence no later than the first day of the Due Period related to the Class A Expected Final Payment Date. Any such
election by the Master Servicer shall be made no later than the first day of the last scheduled Due Period of the Revolving Period (including any prior extension of the Revolving Period pursuant to this Section 23). 
 The Master Servicer may make such election only if the following conditions are satisfied: (i) the Master Servicer shall have delivered to the
Trustee a certificate to the effect that the Master Servicer reasonably believes that the delay in the commencement of the Accumulation Period would not result in the Class Invested Amount with respect to any Class of the Series established hereby
not being paid in full on the relevant Class Expected Final Payment Date; (ii) the Rating Agencies shall have advised the Master Servicer and Discover Bank on behalf of the Holder of the Seller Certificate that such election to delay the
commencement of the Accumulation Period would not cause the rating of any Class of any Series then outstanding to be lowered or withdrawn; and (iii) the amount to be deposited in the Series Principal Funding Account in respect of the
Accumulation Amount shall have been adjusted. 
 SECTION 24. Optional Accumulation Period Commencement. If the Series Term
Sheet for the Series established hereby so provides, unless the Amortization Period or the Early Accumulation Period shall have commenced prior thereto, the Master Servicer may elect to commence the Accumulation Period by delivering written notice
to the Trustee, Discover Bank, on behalf of the Holder of the Seller Certificate and the Credit Enhancement Provider at least 5 Business Days prior to the Accumulation Commencement Date subject to the conditions set forth in this Section 24;
provided, however, that the Accumulation Period shall commence no later than the first day of the following Due Period. Such written notice shall set forth the Accumulation Amount for each Distribution Date relating to the Accumulation
Period. 
  

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 SECTION 25. Ratification of Pooling and Servicing Agreement. As supplemented and amended by
this Series Supplement, the Pooling and Servicing Agreement is in all respects ratified and confirmed and the Pooling and Servicing Agreement as so supplemented by this Series Supplement shall be read, taken, and construed as one and the same
instrument. 
 SECTION 26. Counterparts. This Series Supplement may be executed in any number of counterparts, each of which so
executed shall be deemed to be an original, but all of such counterparts shall together constitute but one and the same instrument. 
 SECTION 27. Governing Law. This Series Supplement shall be construed in accordance with the internal laws of the State of New York, without reference to its conflict of law provisions, and the obligations, rights and remedies
of the parties hereunder shall be determined in accordance with such laws. 
 SECTION 28. Intention of Parties. The parties intend the
sale, transfer, assignment or conveyance of Receivables, Interchange and all proceeds thereof in connection herewith to be a sale of financial assets in connection with a securitization, an absolute transfer for all purposes (other than for federal,
state and local income and franchise tax purposes) and to be treated as a sale for accounting purposes. 
 SECTION 29. Amendment for Sale
Accounting Purposes. If any Seller determines that (i) an amendment to this Agreement or the Pooling and Servicing Agreement is necessary or desirable for such Seller to maintain or establish sale accounting treatment under then-applicable
financial accounting standards, and (ii) such Seller cannot enter into such amendment pursuant to Section 13.01 of the Pooling and Servicing Agreement without obtaining the consent of a specified percentage of Investor Certificateholders,
then the Master Servicer, the Sellers, the Trustee and the Servicers may nonetheless enter into such amendment without obtaining the consent of any Certificateholder of any Investor Certificates of this Series so long as the Trustee shall have been
advised by the Rating Agencies that such amendment will not result in the downgrading or withdrawal of the rating assigned to any Class of any Series then outstanding. 
 Any such amendment may include, without limitation, any changes necessary to convert the Trust from a “one-tier” securitization structure to a “two-tier” securitization structure. Notwithstanding
the foregoing, any Investor Certificateholder that acquires an Investor Certificate of this Series will be deemed to have consented to any such amendment for all purposes, including for purposes of calculating whether the requisite consent
percentage, if any, under Section 13.01 of the Pooling and Servicing Agreement has been received for any amendment that requires such consent because of the lack of provisions comparable to this Section 29 in the Series Supplements for
other Series then outstanding (except that Investor Certificates beneficially owned by any Seller or any affiliate or agent of any Seller will not be included in any such calculation). 
  

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 SECTION 30. Election Under Delaware Asset-Backed Securities Facilitation Act. Without limiting any
other provisions of the Pooling and Servicing Agreement or this Series Supplement, the parties hereto agree that (a) the transactions contemplated hereby constitute a “securitization transaction” and (b) to the fullest extent
permitted under applicable law, including without limitation, the Asset-Backed Securities Facilitation Act Delaware Code Ann. tit. 6, § 2703A et seq: (1) all right, title and interest to the Receivables, whether now existing or hereafter
acquired, all monies due or to become due with respect thereto, all proceeds of such Receivables and all Interchange (the “Transferred Assets”), which have been transferred to the Trust in connection with the securitization transactions
contemplated herein, shall be deemed to no longer be the property, assets or rights of the Seller; (2) the Seller, its creditors or, in any insolvency proceeding with respect to the Seller or the Seller’s property, a bankruptcy trustee,
receiver, debtor, debtor in possession or similar person, shall have no rights, legal or equitable, whatsoever to reacquire, reclaim, recover, repudiate, disaffirm, redeem or recharacterize as property of the Seller any of the Transferred Assets;
and (3) in the event of a bankruptcy, receivership or other insolvency proceeding with respect to the Seller or the Seller’s property, such Transferred Assets shall not be deemed to be part of the Seller’s property, assets, rights or
estate. 
 SECTION 31. Issuance of Additional Certificates. The Sellers may direct the Trustee to issue, at any time and from time to
time when this Series is outstanding, additional Investor Certificates of this Series to increase the Series Investor Interest, subject to the satisfaction of the conditions described below: 
 (a) The additional Investor Certificates shall increase the Class Invested Amounts of the Class A Certificates and the Class B Certificates, if
applicable, and all amounts related to the Credit Enhancement for this Series proportionately from their initial levels. 
 (b) The Sellers
shall have notified the Trustee, in writing, at least three days in advance of the date upon which the Series Investor Interest is to be increased, which notice shall state the designation of the Series under which the additional Investor
Certificates are to be issued and shall include: (i) the amount of Investor Certificates being offered and the resulting Class Initial Investor Interests and Series Initial Investor Interest; (ii) the date from which interest on the
additional Investor Certificates will accrue (which may be a date prior to the date of issuance thereof); (iii) the first Interest Payment Date on which interest will be paid on such new Investor Certificates; (iv) the Increased Credit
Enhancement Amount and the Increased Issuance Subordinated Amount for such increase; and (v) any other terms that the Sellers set forth in such notice of such increase in the Series Investor Interest to clarify the rights of holders of such new
Investor Certificates or the effect of such new Investor Certificates on any calculations to be made with respect to this Series, the Group of which this Series is a member, or the Trust. All such terms shall be incorporated into and form a part of
this Series Supplement on and after the effective date of such increase in the Series Investor Interest. The notice shall also include a revised Series Term Sheet that specifies the terms of this Series after giving effect to the increase.

  

 63 








 (c) The Sellers shall have delivered to the Trustee written confirmation from the Rating Agencies that
they will not, as a result of the increase, change the rating of any class of any series outstanding at the time of the increase and that they will rate the additional Investor Certificates the same as those Investor Certificates currently
outstanding in this Series. 
 (d) Discover Bank as Servicer shall have arranged for the payment of an additional amount related to the
Credit Enhancement required to increase the amount on deposit in the Credit Enhancement Account so that such amount, after giving effect to such increase and the issuance of the additional Investor Certificates, represents the same percentage of the
Series Investor Interest that the original amount on deposit in the Credit Enhancement Account, plus any amounts deposited in the Credit Enhancement Account as a result of a Supplemental Credit Enhancement Event or an Effective Alternative Credit
Support Election, represented of the original Series Investor Interest (such additional amount, the “Increased Credit Enhancement Amount”). Such payment shall be made by a Person other than Discover Bank to the Trustee as administrator of
the Credit Enhancement for application in accordance with the provisions of the Credit Enhancement Agreement. Both the form and the provider of the Increased Credit Enhancement Amount shall be determined at the time it is to be paid. 
 (e) Discover Bank on behalf of the Holder of the Seller Certificate shall not be required to designate Additional Accounts or convey Participation
Interests to the Trust pursuant to Section 2.10(a) of the Pooling and Servicing Agreement as a result of the increase in Series Investor Interest. 
 (f) No Amortization Event shall have occurred for this Series. 
 (g) No such additional Investor
Certificates shall be issued with more than de minimis original issue discount. 
 Upon any increase in the Series Investor Interest,
Discover Bank on behalf of the Holder of the Seller Certificate shall execute and deliver to the Trustee, and the Trustee shall authenticate and deliver, upon the order of Discover Bank on behalf of the Holder of the Seller Certificate, new Investor
Certificates in the amount of the increase, each of which shall bear, upon its face, the designation for this Series. 
  

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 EXHIBIT A-1-A 
 [RESERVED] 
  

 A-1-A-1 








 EXHIBIT A-1-B 
 [RESERVED] 
  

 A-1-B-1 








 EXHIBIT A-2-A 
 FORM OF CLASS A CERTIFICATE 
 [FORM OF THE FACE OF THE CLASS A CERTIFICATES] 
 UNLESS THIS CLASS A CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE ISSUER OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CLASS A CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS
MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
  

			
	NO.	  	$                        
		
		  	CUSIP NO. ____________

 DISCOVER CARD MASTER TRUST I, SERIES 2003-4 
 FLOATING RATE CLASS A, SUBSERIES 2 CREDIT CARD PASS-THROUGH 
 CERTIFICATE 
 DISCOVER BANK 
 MASTER SERVICER, SERVICER AND SELLER 
 (NOT AN INTEREST IN OR OBLIGATION OF DISCOVER BANK AND
NOT INSURED OR GUARANTEED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.) 
 This certifies that
Cede & Co. (the “Class A Certificateholder”) is the registered owner of a Fractional Undivided Interest in the Discover Card Master Trust I (the “Trust”), the corpus of which consists of a portfolio of receivables (the
“Receivables”) existing as of the Cut-Off Date (or, with respect to Receivables in Additional Accounts, as of the applicable Additional Account Cut-Off Date) or thereafter created under certain open end credit card accounts for specified
Persons (the “Accounts”) originated by Discover Bank, a Delaware banking corporation (“Discover Bank”), or an affiliate of Discover Bank, and transferred to the Trust by Discover Bank or one or more Additional Sellers, all monies
due or to become due with respect thereto, all proceeds (as defined in Section 9-102(a)(64) of the Uniform Commercial Code as in effect in the Applicable State or any successor provision thereto) of such Receivables and interchange pursuant to
an Amended and Restated Pooling and Servicing Agreement, dated as of November 3, 2004, as amended, by and between U.S. Bank National Association as Trustee (the “Trustee”) and Discover Bank as Master Servicer, Servicer and Seller (the
“Pooling and Servicing Agreement”), a summary of certain of the pertinent provisions of which is set forth herein below, and benefits under any Credit Enhancement with respect to any Series of investor certificates issued from time to time
pursuant to the 

  

 A-2-A-1 








 
Pooling and Servicing Agreement, to the extent applicable. Reference is hereby made to the further provisions of this Class A Certificate set forth on
the reverse hereof, and such further provisions shall for all purposes have the same effect as if set forth at this place. 
 This
Class A Certificate shall not be entitled to any benefit under the Pooling and Servicing Agreement or any amendment thereto, or the Amended and Restated Series Supplement, dated as of July 31, 2009 (the “Series Supplement”), by and
between the Trustee and Discover Bank or any amendment thereto, or become vested or obligatory for any purpose until the certificate of authentication hereon shall have been signed by or on behalf of the Trustee under the Pooling and Servicing
Agreement. 
  

 A-2-A-2 








 IN WITNESS WHEREOF, Discover Bank has caused this Class A Certificate to be duly executed and
authenticated. 
  

			
	DISCOVER BANK
		
	By:	 	 
		 	


  

 A-2-A-3 








 [FORM OF THE REVERSE OF THE CLASS A CERTIFICATES] 
 It is the intent of the Sellers and the Investor Certificateholders that, for federal, state and local income and franchise tax purposes only, the
Investor Certificates will be evidence of indebtedness of the Sellers. The Sellers and the Class A Certificateholder, by the acceptance of this Class A Certificate, agree to treat this Class A Certificate for federal, state and local
income and franchise tax purposes as indebtedness of the Sellers secured by the Receivables and other assets held in the Trust. 
 To the
extent not defined herein, the capitalized terms used herein have the meanings assigned in the Pooling and Servicing Agreement or the Series Supplement; provided, however, that such capitalized terms shall only have the meanings applicable to
Subseries 2 of Series 2003-4. This Class A Certificate is issued under and is subject to the terms, provisions and conditions of the Pooling and Servicing Agreement and the Series Supplement, to which Pooling and Servicing Agreement and Series
Supplement, as each may be amended from time to time, the Class A Certificateholder by virtue of the acceptance hereof assents and by which the Class A Certificateholder is bound. 
 This Class A Certificate is one of a series of Certificates entitled “Discover Card Master Trust I, Series 2003-4 Floating Rate Class A,
Subseries 2 Credit Card Pass-Through Certificates” (the “Class A Certificates”), each of which represents a Fractional Undivided Interest in the Trust including the right to receive the Collections and other amounts at the times and
in the amounts specified in the Pooling and Servicing Agreement and the Series Supplement to be deposited in the Investor Accounts with respect to Discover Card Master Trust I, Series 2003-4, Subseries 2 or paid to the Class A
Certificateholders. Also issued under the Pooling and Servicing Agreement and the Series Supplement are Investor Certificates designated as “Discover Card Master Trust I, Series 2003-4 Floating Rate Class B, Subseries 2 Credit Card Pass-Through
Certificates” (the “Class B Certificates”). The Class A Certificates and the Class B Certificates are collectively referred to herein as the Investor Certificates. 
 The aggregate interest represented by the Class A Certificates at any time in the assets of the Trust shall not exceed an amount equal to the
Class A Investor Interest at such time, plus accrued but unpaid Certificate Interest for the Class A Certificates and any interest thereon. The Class Initial Investor Interest of the Class A Certificates is $750,000,000; plus
the face amount of any Class A Certificates issued in an increase of the Series Investor Interest pursuant to Section 31 of the Series Supplement. The Class A Invested Amount on any Distribution Date will be an amount equal to the
Class A Initial Investor Interest minus the sum of (a) the aggregate amount of payments of Certificate Principal paid to the Class A Certificateholders prior to such Distribution Date, (b) the aggregate amount of Investor Losses
for such Class not reimbursed prior to such Distribution Date and (c) the aggregate amount of losses of principal on investments in funds on deposit for the benefit of such Class in the Series Principal Funding Account. In addition to the
Investor Certificates, a Seller Certificate has been issued pursuant to the Pooling and Servicing Agreement which represents, at any time, the undivided interest in the Trust not represented by the Investor Certificates or the investor certificates
of any other Series of investor certificates then outstanding. Subject to the terms and conditions of the Pooling and Servicing Agreement, the Sellers may from time to time direct the Trustee, on behalf of the Trust, to issue one or more new Series
of investor certificates, which will represent Fractional Undivided Interests in the Trust. 
  

 A-2-A-4 








 During the Revolving Period, which begins on the Series Cut-Off Date, and during the Accumulation Period,
Certificate Interest will be distributed on the 15th day of each calendar month with respect to interest accrued during the preceding Interest Accrual Period, commencing in January 2004, or if such 15th day is not a Business Day, on the next
succeeding Business Day (an “Interest Payment Date”), to the Class A Certificateholders of record as of the last day of the month preceding the related Interest Payment Date. Principal on the Class A Certificates is scheduled to
be paid in a single payment on the Distribution Date in November 2010 (the “Class A Expected Final Payment Date”), but may be paid sooner or later and in installments if an Amortization Event occurs. During the Amortization Period, if any,
Certificate Interest and Certificate Principal collected by the Master Servicer will be distributed to the Class A Certificateholders on the Distribution Date of each calendar month, commencing in the month following the commencement of the
Amortization Period. In any event, the final payment of principal of either class will be made no later than the first Business Day following the Distribution Date in May 2013 (the “Series Termination Date”). 
 The amount to be distributed on each Principal Payment Date to the holder of this Class A Certificate will be equal to the product of (a) the
percentage equivalent of a fraction, the numerator of which is the portion of the Class A Initial Investor Interest evidenced by this Class A Certificate and the denominator of which is the Class A Initial Investor Interest and
(b) the aggregate of all payments to be made to the Class A Certificateholders on such Distribution Date. Distributions with respect to this Class A Certificate will be made by the Paying Agent by check mailed to the address of the
Class A Certificateholder of record appearing in the Certificate Register (except for the final distribution in respect of this Class A Certificate) without the presentation or surrender of this Class A Certificate or the making of
any notation thereon, except that with respect to Class A Certificates registered in the name of Cede & Co., the nominee registrant for The Depository Trust Company, distributions will be made in the form of immediately available
funds. 
 This Class A Certificate does not represent an obligation of, or an interest in, the Master Servicer. This Class A
Certificate is limited in right of payment to certain Collections respecting the Receivables and certain other assets of the Trust, all as more specifically set forth hereinabove and in the Pooling and Servicing Agreement and the Series Supplement.

 The Pooling and Servicing Agreement permits, with certain exceptions, the amendment and modification of the rights and obligations of the
Master Servicer, and the rights of Investor Certificateholders under the Pooling and Servicing Agreement and Series Supplement, at any time by the Master Servicer, the Sellers and the Trustee in certain cases (some of which require confirmation from
the Rating Agencies that such amendment will not result in the downgrading or withdrawal of the rating assigned to the Investor Certificates) without the consent of the Investor Certificateholders, and in all other cases with the consent of the
Investor Certificateholders owning Fractional Undivided Interests aggregating not less than 66-2/3% of the Class Invested Amount of each such affected Class (and with confirmation from the Rating Agencies that such amendment will not result in the
downgrading or withdrawal of the rating assigned to the Investor Certificates); provided, however, that no such amendment shall (a) have a material adverse effect on any Class of Investor Certificateholders by reducing in any manner the
amount of, or delaying the timing of, 

  

 A-2-A-5 








 
distributions which are required to be made on any Investor Certificate without the consent of the affected Investor Certificateholders or (b) reduce
the aforesaid percentage required to consent to any such amendment, without the consent of each Investor Certificateholder of each affected Class then of record; and provided, further, that the permitted activities of the Trust may be
significantly changed only with the consent of the Holders of Investor Certificates evidencing Fractional Undivided Interests aggregating not less than 51% of the Aggregate Invested Amount. Any such amendment and any such consent by the Class A
Certificateholder, including the deemed consent described in the following sentence, shall be conclusive and binding on such Class A Certificateholder and upon all future Holders of this Class A Certificate and of any Class A
Certificate issued in exchange hereof or in lieu hereof whether or not notation thereof is made upon this Class A Certificate. The Class A Certificateholder, by acceptance of this Class A Certificate, will be deemed to have consented
for all purposes to any amendment that any Seller determines is necessary or desirable for such Seller to maintain or establish sale accounting treatment under then-applicable financial accounting standards. 
 The transfer of this Class A Certificate shall be registered in the Certificate Register upon surrender of this Investor Certificate for
registration of transfer at any office or agency maintained by the Transfer Agent and Registrar accompanied by a written instrument of transfer in a form satisfactory to the Trustee and the Transfer Agent and Registrar duly executed by the
Class A Certificateholder or such Class A Certificateholder’s attorney duly authorized in writing, and thereupon one or more new Class A Certificates of authorized denominations and for the same aggregate Fractional Undivided
Interest will be issued to the designated transferee or transferees. 
 As provided in the Pooling and Servicing Agreement and subject to
certain limitations therein set forth, Class A Certificates are exchangeable for new Class A Certificates evidencing like aggregate Fractional Undivided Interests, as requested by the Class A Certificateholder surrendering such
Class A Certificates. No service charge may be imposed for any such exchange but the Master Servicer or Transfer Agent and Registrar may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in
connection therewith. 
 The Master Servicer, the Trustee, the Paying Agent and the Transfer Agent, and any agent of any of them, may treat
the person in whose name this Class A Certificate is registered as the owner hereof for all purposes, and neither the Master Servicer, the Trust nor the Trustee, the Paying Agent, the Transfer Agent, nor any agent of any of them or any such
agent shall be affected by notice to the contrary except in certain circumstances described in the Pooling and Servicing Agreement. 
 Subject to certain conditions in the Pooling and Servicing Agreement and the Series Supplement, if the principal of the Investor Certificates has not been paid in full prior to the Series Termination Date, the obligations created by the
Pooling and Servicing Agreement and the Series Supplement with respect to the Investor Certificates shall terminate on the Series Termination Date. 
  

 A-2-A-6 








 [FORM OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION] 
 This is one of the Class A Certificates referred to in the within mentioned Pooling and Servicing Agreement and Series Supplement. 
  

			
	U.S. BANK NATIONAL ASSOCIATION, as Trustee
		
	By:	 	 
		 	Authorized Officer


  

 A-2-A-7 








 EXHIBIT A-2-B 
 FORM OF CLASS B CERTIFICATE 
 [FORM OF THE FACE OF THE CLASS B CERTIFICATES] 
 UNLESS THIS CLASS B CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE ISSUER OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CLASS B CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS
MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
  

					
	NO.	 	$	  	
			
		 	CUSIP NO. 	  	 

 THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE CLASS A CERTIFICATES AND TO THE
RIGHTS OF THE MASTER SERVICER AS DESCRIBED IN THE POOLING AND SERVICING AGREEMENT AND SERIES SUPPLEMENT REFERRED TO HEREIN. 
 DISCOVER
CARD MASTER TRUST I, SERIES 2003-4 
 FLOATING RATE CLASS B, SUBSERIES 2 
 CREDIT CARD PASS-THROUGH CERTIFICATE 
 DISCOVER BANK 
 MASTER SERVICER, SERVICER AND SELLER 
 (NOT AN
INTEREST IN OR OBLIGATION OF DISCOVER BANK AND NOT INSURED OR GUARANTEED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.) 
 THIS INVESTOR CERTIFICATE MAY NOT BE ACQUIRED BY OR FOR THE ACCOUNT OF ANY EMPLOYEE BENEFIT PLAN (AS DEFINED BELOW). 
 This certifies that Cede & Co. (the “Class B Certificateholder”) is the registered owner of a Fractional Undivided Interest in the Discover Card Master Trust I (the “Trust”), the corpus of
which consists of a portfolio of receivables (the “Receivables”) existing as of the Cut-Off Date (or, with respect to Receivables in Additional Accounts, as of the applicable Additional Account Cut-Off Date) or thereafter created under
certain open end credit card accounts for specified Persons (the “Accounts”) originated by Discover Bank, a Delaware banking corporation (“Discover Bank”), or an affiliate of Discover Bank, and transferred to the Trust by
Discover Bank or one or more Additional Sellers, all monies due or to become due with respect thereto, all proceeds (as defined in Section 9-102(a)(64) 

  

 A-2-B-1 








 
of the Uniform Commercial Code as in effect in the Applicable State or any successor provision thereto) of such Receivables and interchange pursuant to an
Amended and Restated Pooling and Servicing Agreement, dated as of November 3, 2004, as amended, by and between U.S. Bank National Association as Trustee (the “Trustee”) and Discover Bank as Master Servicer, Servicer and Seller (the
“Pooling and Servicing Agreement”), a summary of certain of the pertinent provisions of which is set forth herein below, and benefits under any Credit Enhancement with respect to any Series of investor certificates issued from time to time
pursuant to the Pooling and Servicing Agreement, to the extent applicable. Reference is hereby made to the further provisions of this Class B Certificate set forth on the reverse hereof, and such further provisions shall for all purposes have the
same effect as if set forth at this place. 
 This Class B Certificate shall not be entitled to any benefit under the Pooling and Servicing
Agreement or any amendment thereto, or the Amended and Restated Series Supplement, dated as of July 31, 2009 (the “Series Supplement”), by and between the Trustee and Discover Bank or any amendment thereto, or become vested or
obligatory for any purpose until the certificate of authentication hereon shall have been signed by or on behalf of the Trustee under the Pooling and Servicing Agreement. 
  


 A-2-B-2 








 IN WITNESS WHEREOF, Discover Bank has caused this Class B Certificate to be duly executed and
authenticated. 
  

			
	DISCOVER BANK
		
	By:	 	 


  

 A-2-B-3 








 [FORM OF THE REVERSE OF THE CLASS B CERTIFICATES] 
 It is the intent of the Sellers and the Investor Certificateholders that, for federal, state and local income and franchise tax purposes only, the
Investor Certificates will be evidence of indebtedness of the Sellers. The Sellers and the Class B Certificateholder, by the acceptance of this Class B Certificate, agree to treat this Class B Certificate for federal, state and local income and
franchise tax purposes as indebtedness of the Sellers secured by the Receivables and other assets held in the Trust. 
 To the extent not
defined herein, the capitalized terms used herein have the meanings assigned in the Pooling and Servicing Agreement or the Series Supplement; provided, however, that such capitalized terms shall only have the meanings applicable to Subseries 2 of
Series 2003-4. This Class B Certificate is issued under and is subject to the terms, provisions and conditions of the Pooling and Servicing Agreement and the Series Supplement, to which Pooling and Servicing Agreement and Series Supplement, as each
may be amended from time to time, the Class B Certificateholder by virtue of the acceptance hereof assents and by which the Class B Certificateholder is bound. 
 This Class B Certificate is one of a class of Certificates entitled “Discover Card Master Trust I, Series 2003-4 Floating Rate Class B, Subseries 2 Credit Card Pass-Through Certificates” (the “Class B
Certificates”), each of which represents a Fractional Undivided Interest in the Trust including the right to receive the Collections and other amounts at the times and in the amounts specified in the Pooling and Servicing Agreement and the
Series Supplement to be deposited in the Investor Accounts with respect to Discover Card Master Trust I, Series 2003-4, Subseries 2 or paid to the Class B Certificateholders. Also issued under the Pooling and Servicing Agreement and the Series
Supplement are Investor Certificates designated as “Discover Card Master Trust I, Series 2003-4 Floating Rate Class A, Subseries 2 Credit Card Pass-Through Certificates” (the “Class A Certificates”). The Class A
Certificates and the Class B Certificates are collectively referred to herein as the Investor Certificates. 
 The aggregate interest
represented by the Class B Certificates at any time in the assets of the Trust shall not exceed an amount equal to the Class Investor Interest of the Class B Certificates at such time, plus accrued but unpaid Certificate Interest for the Class B
Certificates and any interest thereon. The Class B Certificateholders are also entitled to the benefit of the Credit Enhancement, to the extent provided in the Series Supplement. The Class Initial Investor Interest of the Class B Certificates is
$39,474,000; plus the face amount of any Class B Certificates issued in an increase of the Series Investor Interest pursuant to Section 31 of the Series Supplement. The Class B Invested Amount on any Distribution Date will be an amount
equal to the Class B Initial Investor Interest minus the sum of (a) the aggregate amount of payments of Certificate Principal paid to the Class B Certificateholders prior to such Distribution Date, (b) the aggregate amount of Investor
Losses for such Class not reimbursed prior to such Distribution Date and (c) the aggregate amount of losses of principal on investments in funds on deposit for the benefit of such Class in the Series Principal Funding Account. In addition to
the Investor Certificates, a Seller Certificate has been issued pursuant to the Pooling and Servicing Agreement which represents, at any time, the undivided interest in the Trust not represented by the Investor Certificates or the investor
certificates of any other Series of investor certificates then outstanding. Subject to the terms and conditions of the Pooling and Servicing Agreement, the Sellers may from time to time direct the Trustee, on behalf of the Trust, to issue one or
more new Series of investor certificates, which will represent Fractional Undivided Interests in the Trust. 
  

 A-2-B-4 








 During the Revolving Period, which begins on the Series Cut-Off Date, and during the Accumulation Period,
Certificate Interest will be distributed on the 15th day of each calendar month with respect to interest accrued during the preceding Interest Accrual Period, commencing in January 2004, or if such 15th day is not a Business Day, on the next
succeeding Business Day (each, an “Interest Payment Date”), to the Class B Certificateholders of record as of the last day of the month preceding the related Interest Payment Date. Principal on the Class B Certificates is scheduled to be
paid in a single payment on the Distribution Date in December 2010 (the “Class B Expected Final Payment Date”), but may be paid sooner or later or in installments under certain circumstances. During the Amortization Period, if any,
Certificate Interest and Certificate Principal collected by the Master Servicer will be distributed to the Class B Certificateholders on the Distribution Date of each calendar month, commencing in the month following the commencement of the
Amortization Period; provided, however, that no Certificate Principal will be distributed to the Class B Certificateholders until the Class A Investor Interest has been reduced to zero. The rights of the Class B Certificateholders to
receive the distributions to which they would otherwise be entitled on the Receivables will be subordinated to the rights of the Class A Certificateholders and the Master Servicer to the extent described in the Pooling and Servicing Agreement
and Series Supplement. In any event, the final payment of principal of either Class will be made no later than the first Business Day following the Distribution Date in May 2013 (the “Series Termination Date”). 
 The amount to be distributed on each Distribution Date to the holder of this Class B Certificate will be equal to the product of (a) the percentage
equivalent of a fraction, the numerator of which is the portion of the Class B Initial Investor Interest evidenced by this Class B Certificate and the denominator of which is the Class B Initial Investor Interest and (b) the aggregate of all
payments to be made to the Class B Certificateholders on such Distribution Date. Distributions with respect to this Class B Certificate will be made by the Paying Agent by check mailed to the address of the Class B Certificateholder of record
appearing in the Certificate Register (except for the final distribution in respect of this Class B Certificate) without the presentation or surrender of this Class B Certificate or the making of any notation thereon, except that with respect to
Class B Certificates registered in the name of Cede & Co., the nominee registrant for The Depository Trust Company, distributions will be made in the form of immediately available funds. 
 This Class B Certificate does not represent an obligation of, or an interest in, the Master Servicer. This Class B Certificate is limited in right of
payment to certain Collections respecting the Receivables and certain other assets of the Trust, all as more specifically set forth hereinabove and in the Pooling and Servicing Agreement and the Series Supplement. 
  

 A-2-B-5 








 The Pooling and Servicing Agreement permits, with certain exceptions, the amendment and modification of
the rights and obligations of the Master Servicer, and the rights of Investor Certificateholders under the Pooling and Servicing Agreement and Series Supplement, at any time by the Master Servicer, the Sellers and the Trustee in certain cases (some
of which require confirmation from the Rating Agencies that such amendment will not result in the downgrading or withdrawal of the rating assigned to the Investor Certificates) without the consent of the Investor Certificateholders, and in all other
cases with the consent of the Investor Certificateholders owning Fractional Undivided Interests aggregating not less than 66-2/3% of the Class Invested Amount of each such affected Class (and with confirmation from the Rating Agencies that such
amendment will not result in the downgrading or withdrawal of the rating assigned to the Investor Certificates); provided, however, that no such amendment shall (a) have a material adverse effect on any Class of Investor
Certificateholders by reducing in any manner the amount of, or delaying the timing of, distributions which are required to be made on any Investor Certificate without the consent of the affected Investor Certificateholders or (b) reduce the
aforesaid percentage required to consent to any such amendment, without the consent of each Investor Certificateholder of each affected Class then of record; and, provided, further, that the permitted activities of the Trust may be
significantly changed only with the consent of the Holders of Investor Certificates evidencing Fractional Undivided Interests aggregating not less than 51% of the Aggregate Invested Amount. Any such amendment and any such consent by the Class B
Certificateholder, including the deemed consent described in the following sentence, shall be conclusive and binding on such Class B Certificateholder and upon all future Holders of this Class B Certificate and of any Class B Certificate issued in
exchange hereof or in lieu hereof whether or not notation thereof is made upon this Class B Certificate. The Class B Certificateholder, by acceptance of this Class B Certificate, will be deemed to have consented for all purposes to any amendment
that any Seller determines is necessary or desirable for such Seller to maintain or establish sale accounting treatment under then-applicable financial accounting standards. 
 The transfer of this Class B Certificate shall be registered in the Certificate Register upon surrender of this Investor Certificate for registration of
transfer at any office or agency maintained by the Transfer Agent and Registrar accompanied by a written instrument of transfer in a form satisfactory to the Trustee and the Transfer Agent and Registrar duly executed by the Class B Certificateholder
or such Class B Certificateholder’s attorney duly authorized in writing, and thereupon one or more new Class B Certificates of authorized denominations and for the same aggregate Fractional Undivided Interest will be issued to the designated
transferee or transferees. 
 The transfer of this Investor Certificate is subject to certain restrictions set forth in the Pooling and
Servicing Agreement. In no event shall this Investor Certificate, or any interest therein, be transferred to an employee benefit plan, trust or account subject to the Employee Retirement Income Security Act of 1974, as amended (“ERISA”),
or described in Section 4975(e)(1) of the Internal Revenue Code of 1986, as amended (the “Code”), and not excepted under Section 4975(g). Any Holder of this Investor Certificate, by its acceptance hereof, shall be deemed to
represent and warrant that it is not (i) an employee benefit plan (as defined in Section 3(3) of ERISA), that is subject to Title I of ERISA, (ii) a plan described in Section 4975(e)(l) of the Code, and not excepted under
Section 4975(g), or (iii) an entity using assets to purchase such Certificates which constitute plan assets by reason of a plan’s investment in such Holder. 
  


 A-2-B-6 








 As provided in the Pooling and Servicing Agreement and subject to certain limitations therein set forth,
Class B Certificates are exchangeable for new Class B Certificates evidencing like aggregate Fractional Undivided Interests, as requested by the Class B Certificateholder surrendering such Class B Certificates. No service charge may be imposed for
any such exchange but the Master Servicer or Transfer Agent and Registrar may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection therewith. 
 The Master Servicer, the Trustee, the Paying Agent and the Transfer Agent, and any agent of any of them, may treat the person in whose name this Class B
Certificate is registered as the owner hereof for all purposes, and neither the Master Servicer, the Trust nor the Trustee, the Paying Agent, the Transfer Agent, nor any agent of any of them or any such agent shall be affected by notice to the
contrary except in certain circumstances described in the Pooling and Servicing Agreement. 
 Subject to certain conditions in the Pooling
and Servicing Agreement and the Series Supplement, if the principal of the Investor Certificates has not been paid in full prior to the Series Termination Date, the obligations created by the Pooling and Servicing Agreement and the Series Supplement
with respect to the Investor Certificates shall terminate on the Series Termination Date. 
  

 A-2-B-7 








 [FORM OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION] 
 This is one of the Class B Certificates referred to in the within mentioned Pooling and Servicing Agreement and Series Supplement. 
  

			
	U.S. BANK NATIONAL ASSOCIATION, as Trustee
		
	By:	 	 
		 	Authorized Officer


  

 A-2-B-8 








 Exhibit B-1 
 [RESERVED] 
  

 B-2-1 








 Exhibit B-2 
 Form of Investor Certificateholders’ Monthly Statement 
 Discover Card Master Trust I 
 Series 2003-4, Subseries 2 Monthly Statement 
 Class A Certificate CUSIP # __________ 
 Class B Certificate CUSIP # __________ 
  

			
	 Distribution Date:
                             ,
            
	  	Month Ending:                     
        ,             

 Pursuant to the Amended and Restated Series Supplement dated as of July 31, 2009 relating to the Amended and
Restated Pooling and Servicing Agreement dated as of November 3, 2004, as amended, by and between Discover Bank and U.S. Bank National Association as Trustee, the Trustee is required to prepare certain information each month regarding current
distributions to investors and the performance of the Trust. We have set forth below this information and certain other information required under the Securities Exchange Act of 1934, as amended, for the Distribution Date listed above, as well as
for the calendar month ended on the date listed above. The Pooling and Servicing Agreement was filed by the Trust as Exhibit 4.1 to the Trust’s Current Report on Form 8-K filed on October 29, 2004, and the Series Supplement was filed by
the Trust as Exhibit 4.4 to the Trust’s Current Report on Form 8-K filed on [[    ], 2003], in each case under the file number [000-23108]. Capitalized terms used in this report without definition have the meanings
given to them in the Pooling and Servicing Agreement and the Series Supplement. 
  

	1.	Payments to investors in Series 2003-4, Subseries 2 on this Distribution Date (per $1,000 of Class Initial Investor Interest) 

  

										
	 	  	Total	  	Interest	  	Principal
	 Series 2003-4, Subseries 2
	  			  			  		
	 Class A
	  	$	____________	  	$	____________	  	$	____________
	 Class B
	  	$	____________	  	$	____________	  	$	____________

 Interest Accrual Period: From and including ___________ __, 20__ to but excluding __________ __,
20__ 
 LIBOR determination date: ___________ __, 20__ 
  

	2.	Principal Receivables at the end of [Month][Year] 

  

									
	  	  	 	  	Beginning
Principal Balances	  	Ending
Principal Balances
	 (a)
	  	Aggregate Investor Interest	  	$	____________	  	$	____________
		  	Seller Interest	  	$	____________	  	$	____________
		  	TOTAL MASTER TRUST	  	$	____________	  	$	____________
	 (b)
	  	Group One Investor Interest	  	$	____________	  	$	____________
	 (c)
	  	Group One Investor Interest for Interchange Series	  	$	____________	  	$	____________
	 (d)
	  	Series 2003-4, Subseries 2 Investor Interest	  	$	____________	  	$	____________
	 (e)
	  	Class A Investor Interest	  	$	____________	  	$	____________
		  	Class B Investor Interest	  	$	____________	  	$	____________
	 (f)
	  	Total Master Trust # of Accounts	  	 	____________	  	 	____________
	 (g)
	  	Minimum Principal Receivables Balance at end of Month1	  			  	$	____________
	 (h)
	  	Amount by which Master Trust Receivables Exceeded the Minimum Principal Receivables Balance at end of Month	  			  	$	____________

  

	1
	 The Discover Card Master Trust I is required to maintain Principal Receivables greater than or equal to the Minimum Principal Receivables Balance. The Minimum
Principal Receivables Balance is generally calculated by dividing the Investor Interest by 93%. If the Principal Receivables in the Trust are less than the Minimum Principal Receivables Balance, and Discover Bank fails to assign sufficient
Receivables to eliminate the deficiency, then an amortization event would occur. 


  

 B-2-2 









	3.	Allocation of Receivables and other amounts collected during [Month][Year] 

  

												
	 	 	 	  	Finance Charge
Collections	  	Principal
Collections	  	Interchange
	 (a)
	 	Allocation of Collections between Investors and Seller	  			  			  		
		 	Aggregate Investor Allocation	  	$	____________	  	$	____________	  	$	____________
		 	Seller Allocation	  	$	____________	  	$	____________	  	$	____________
	 (b)
	 	Group One Allocation	  	$	____________	  	$	____________	  	$	____________
	 (c)
	 	Series 2003-4, Subseries 2 Allocations	  	$	____________	  	$	____________	  	$	____________
	 (d)
	 	Class A Allocations	  	$	____________	  	$	____________	  	$	____________
		 	Class B Allocations	  	$	____________	  	$	____________	  	$	____________
	 (e)
	 	Group One Portfolio Yield (FCC yield excludes principal recoveries, see Item 17(b))	  	$	____________	  	$	____________	  	$	____________
	 (f)
	 	Series 2003-4, Subseries 2 Portfolio Yield (yield excludes principal recoveries, see Item 17(b))	  	$	____________	  	$	____________	  	$	____________


						
	 (g)
	 	Principal Collections as a monthly percentage of Master Trust Receivables at the beginning of [Month][Year]	  	____________	% 
	 (h)
	 	Finance Charge Collections as a monthly percentage of Master Trust Receivables at the beginning of [Month][Year]	  	____________	% 
	 (i)
	 	Total Collections as a monthly percentage of Master Trust Receivables at the beginning of [Month][Year]	  	____________	% 
	 (j)
	 	Interchange as a monthly percentage of Master Trust Receivables at the beginning of the [Month][Year]	  	____________	% 
	 (k)
	 	Total Collections and Interchange as a monthly percentage of Master Trust Receivables at the beginning of [Month][Year]	  	____________	% 


									
	 (l)
	 	Trust Collections deposited for the month2	  	 	[Prior Month]	 	 	[_________,20__]
		 		  	$	____________	 	$	____________

  

	2
	 Only the portion of Trust Collections required to be deposited under the Trust’s Required Daily Deposit provisions will typically be deposited in the Trust
Collections Account each month, and these required amounts may vary markedly from month to month depending on whether any Investor Certificates are maturing on the following distribution date (in which case additional Principal Collections are
retained in such account). Accordingly, the amount deposited in the account is not meaningful as an indicator of Trust performance. 


  

 B-2-3 









	4.	Information concerning the Series Principal Funding Account (“SPFA”) 

  


																
	 	  	SPFA Beginning
Balance	  	Deposits into the
SPFA on this
Distribution Date	  	Deficit Amount on
this Distribution Date	  	SPFA Balance	  	Investment Income
	 Series 2003-4, Subseries 2
	  	$	___________	  	$	___________	  	$	___________	  	$	__________	  	$	____________

  

	5.	Information concerning amount of Controlled Liquidation Payments 

  

										
	 	  	Amount paid on this
Distribution
Date	  	Deficit Amount on this
Distribution
Date	  	Total Payments through this
Distribution Date

	 Series 2003-4, Subseries 2
	  	$	____________	  	$	____________	  	$	____________

  

	6.	Information concerning the Series Interest Funding Accounts (“SIFA”) 

  


													
	 	  	Beginning
SIFA Balance	  	Interest
Shortfall	  	Deposits into the SIFA
on this Distribution Date	  	Ending
SIFA Balance
	 Series 2003-4, Subseries 2
	  	$	_________	  	$	_________	  	$	_________	  	$	_________

  

	7.	Pool Factors for [Month][Year] 

 Class A

 Class B 
  

	8.	Investor Charged-Off Amount 

  

										
	 	 	 	  	[Month][Year]	 	 	Cumulative Investor
Charged-Off Amount
	 (a)
	 	Group One	  	$	_________	  	 	$	_________
	 (b)
	 	Series 2003-4, Subseries 2	  	$	_________	  	 	$	_________
	 (c)
	 	Class A	  	$	_________	  	 	$	_________
		 	Class B	  	$	_________	  	 	$	_________
	 (d)
	 	As an annualized percentage of Principal Receivables at the beginning of [Month][Year]	  	 	__________	% 	 	 	N/A

  

	9.	Investor Losses for [Month][Year] 

  

									
	 	 	 	  	Total	  	per $1,000 of Initial
Investor
Interest
	 (a)
	 	Group One	  	$	_________	  	$	_________
	 (b)
	 	Series 2003-4, Subseries 2	  	$	_________	  	$	_________
	 (c)
	 	Class A	  	$	_________	  	$	_________
		 	Class B	  	$	_________	  	$	_________

  

 B-2-4 









	10.	Reimbursement of Investor Losses for [Month][Year] 

  

									
	 	 	 	  	Total	  	per $1,000 of Initial
Investor
Interest
	(a)	 	Group One	  	$	_________	  	$	_________
	(b)	 	Series 2003-4, Subseries 2	  	$	_________	  	$	_________
	(c)	 	Class A	  	$	_________	  	$	_________
		 	Class B	  	$	_________	  	$	_________

  

	11.	Aggregate amount of Unreimbursed Investor Losses for [Month][Year] 

  

									
	 	 	 	  	Total	  	per $1,000 of Initial
Investor
Interest
	(a)	 	Group One	  	$	_________	  	$	_________
	(b)	 	Series 2003-4, Subseries 2	  	$	_________	  	$	_________
	(c)	 	Class A	  	$	_________	  	$	_________
		 	Class B	  	$	_________	  	$	_________

  

	12.	Investor Monthly Servicing Fee payable to Discover Bank on this Distribution Date 

  

						
	 (a)
	  	Group One	  	$	_________
	 (b)
	  	Series 2003-4, Subseries 2	  	$	_________
	 (c)
	  	Class A	  	$	_________
		  	Class B	  	$	_________

  

	13.	Class Available Subordinated Amount at the end of the Distribution Date 

  

											
	 	 	 	  	Prior Distribution Date	 	 	Current Distribution Date	 
	 Series 2003-4, Class B, Subseries 2
	  				 			
	(a)	 	Total	  	$	____________	  	 	$	____________	  
	(b)	 	as a percentage of Class A Invested Amount	  	 	________ 	% 	 	 	________ 	% 

  

	14.	Total Available Credit Enhancement Amounts 

  

									
	 	  	 	  	Class B on Prior
Distribution Date	  	Class B on Current
Distribution Date
	 (a)
	  	Maximum Amount	  	$	__________	  	$	__________
	 (b)
	  	Available Amount	  	$	__________	  	$	__________
	 (c)
	  	Amount of Unreimbursed drawings on Credit Enhancement	  	$	__________	  	$	__________
	 (d)
	  	Credit Enhancement Fee payable to Discover Receivables Financing Corp. related to loan provided to fund Credit Enhancement	  	$	__________	  	$	__________
	 (e)
	  	Credit Enhancement Fee paid to Discover Receivables Financing Corp. related to loan provided to fund Credit Enhancement	  	$	__________	  	$	__________

  

 B-2-5 









	15.	Delinquency Summary 

  

								
	 Master Trust Receivables Outstanding at the end of [Month][Year]
	  	$	_____________

  

									
	 Payment Status
	  	Number of
Delinquent
Accounts	  	Delinquent Amount
ending balance	  	Percentage of ending
Receivables outstanding	 
	 30 – 59 days
	  	_________	  	$	___________	  	_________	% 
	 60 – 89 days
	  	_________	  	$	___________	  	_________	% 
	 90 – 119 days
	  	_________	  	$	___________	  	_________	% 
	 120 – 149 days
	  	_________	  	$	___________	  	_________	% 
	 150 – 179 days
	  	_________	  	$	___________	  	_________	% 
	 Over 180 days
	  	_________	  	$	___________	  	_________	% 
	 Total
	  	_________	  	$	___________	  	_________	% 

  

 B-2-6 









	16.	 Excess Spread Percentages applicable to this Distribution Date3 



								
	 	  	 	  	Amount	  	Annualized
Percentage	 
	(a)	  	Group One4	  	__________	  	__________	% 
	(b)	  	Group One three-month rolling average	  	__________	  	__________	% 
	(c)	  	Interchange Subgroup5	  	__________	  	__________	% 
	(d)	  	Interchange Subgroup three-month rolling average	  	__________	  	__________	% 
	(e)	  	Series 2003-4, Subseries 26	  	__________	  	__________	% 
	(f)	  	Series 2003-4, Subseries 2 three-month rolling average	  	__________	  	__________	% 

  

	17.	 Investor Principal Charge-Offs on this Distribution Date7 


  

						
	 	  	Amount	  	Rate	 
	 Gross Charges-offs (rate shown as an annualized percentage of Investor Principal Receivables at the beginning of Month][Year])
	  	__________	  	__________	% 
	 Recoveries (rate shown as an annualized percentage of Investor Principal Receivables at the beginning of Month][Year])
	  	__________	  	__________	% 
	 Net Charges-offs (rate shown as an annualized percentage of Investor Principal Receivables at the beginning of Month][Year])
	  	__________	  	__________	% 

  

			
	 U.S. BANK NATIONAL ASSOCIATION,
 as Trustee


		
	By:	 	 


  

	3
	 Investors should refer only to the higher of the Group Excess Spread Percentage (Item 16(a)), the Interchange Subgroup Excess Spread Percentage (Item 16(c)) and the
Series Excess Spread Percentage (Item 16(b)) in assessing the current performance of the Trust and the Receivables. If necessary, the Trust will use funds available from series or subseries with positive Series Excess Spreads to cover expenses (as
detailed in note 5 below) for series or subseries, if any, with negative Series Excess Spreads, except that any such funds consisting of Interchange will only be used to cover expenses for Interchange Series. The Group Excess Spread Percentage
reflects the aggregate amount of Series Excess Spread remaining after all Trust expenses for all series, including each subseries, have been paid or reimbursed, including expenses paid or reimbursed through such reallocations of Series Excess
Spread. The Group Excess Spread Percentage expresses this amount as a percentage of the Aggregate Investor Interest in the Trust as of the beginning of the month. 


  

	4
	 Group Excess Spread is the sum of the Series Excess Spreads for each series, including each subseries, in the Group. The Group Excess Spread Percentage is equal to
the Group Excess Spread, multiplied by twelve, divided by the Series Investor Interests at the beginning of the period for each series, including each subseries, in the Group. 


  

	5
	 The Interchange Subgroup Excess Spread Percentage is the sum of (i) all amounts deposited into the Group Interchange Reallocation Account for all Interchange
Series and (ii) the Interchange Subgroup Allocable Group Excess Spread (as such term is defined in the Series Supplement between Discover Bank and U.S. Bank National Association, as Trustee, for each series, including each subseries),
multiplied by twelve, divided by the Series Investor Interest for all Interchange Series at the beginning of each period. 


  

	6
	 Series Excess Spread for this subseries is the difference between (a) the sum of Finance Charge Collections, Investment Income and Series Interchange for any
Class of this subseries (see Item 3(c)), and (b) the sum of (i) the monthly interest for this suberies (see “Deposits into the SIFA on this Distribution Date” in Item 6), (ii) the monthly servicing fee for this
subseries (see Item 12(b)), (iii) the Investor Charged-Off Amount (see Item 8(b)), and (iv) the Credit Enhancement Fee (see Item 14(d)), in each case for this Distribution Date. For purposes of determining Group Excess
Spread and the Interchange Subgroup Shortfall Allocation Percentage, Series Excess Spread is the amount calculated as described above minus if the Series Excess Spread for such subseries is positive, the lesser of Series Interchange or the amount
determined as the Series Excess Spread without giving effect to this sentence; provided that Series Excess Spread, for purposes of determining the Group Excess Spread and the Interchange Subgroup Shortfall Allocation Percentage, shall not be reduced
below zero as a result of this sentence. The Series Excess Spread Percentage is equal to the Series Excess Spread, multiplied by twelve, divided by the Series Investor Interest for this subseries at the beginning of the period.



  

	7	 For purposes of allocations to investors,
all recoveries are treated as Finance Charge Collections and are included as such in Item 3 above. 


  

 B-2-7 








 Exhibit C-1 
 [RESERVED] 
  

 C-1-1 








 Exhibit C-2 
 Form of Master Servicer’s Monthly Certificate 
 Discover Card Master Trust I, Series 2003-4, Subseries 2

 CREDIT CARD 
 PASS-THROUGH
CERTIFICATES 
  
  
 The undersigned, a duly authorized representative of Discover Bank, as Master Servicer pursuant to the Amended and Restated Pooling and Servicing Agreement dated as of
November 3, 2004 (the “Pooling and Servicing Agreement”), as amended, and the Amended and Restated Series Supplement, dated as of July 31, 2009 (the “Series Supplement”) by and between Discover Bank and U.S. Bank
National Association as Trustee, does hereby certify as follows with respect to the Series Supplement for the Discover Card Master Trust I, Series 2003-4, Subseries 2 Certificates for the Distribution Date occurring on
                                        
 : 
  

				
	 1.      Discover Bank is Master Servicer under the Pooling and Servicing Agreement.
	  		
	 2.      The undersigned is a Servicing Officer of Discover Bank as Master Servicer.
	  		
	 3       The aggregate amount of Collections processed during [month] [year] is equal to
	  	$	________
	 4.      The aggregate amount of Class A Principal Collections processed during [month] [year] is equal to

	  	$	________
	 5.      The aggregate amount of Class A Finance Charge Collections processed during [month] [year] is equal
to
	  	$	________
	 6.      The aggregate amount of Class A Interchange processed during [month] [year] is equal
to
	  	$	________
	 7.      The sum of all amounts payable to the Class A Certificateholders on the current Distribution
Date is equal to
	  	$	________
	 8.      The aggregate amount of Class B Principal Collections processed during [month] [year] is equal
to
	  	$	________
	 9.      The aggregate amount of Class B Finance Charge Collections processed during [month] [year] is equal to

	  	$	________

  

 C-2-1 









				
	 10.    The aggregate amount of Class B Interchange processed during [month] [year] is equal to
	  	$	________
	 11.    The amount of drawings under the Credit Enhancement required to be made and not immediately reimbursed on the
related Drawing Date pursuant to the Series Supplement:
	  		
	 (a)    with respect to the Class B Required Amount Shortfall is equal to
	  	$	________
	 (b)    with respect to the Class B Cumulative Investor Charged-Off Amount is equal to
	  	$	________
	 (c)    with respect to the Class B Investor Interest is equal to
	  	$	________
	 12.    The sum of all amounts payable to the Class B Certificateholders on the current Distribution Date is equal
to
	  	$	________
	 13.    Attached hereto is a true copy of the statement required to be delivered by the Master Servicer on the date of this
Certificate to the Trustee pursuant to the section entitled Master Servicer’s Monthly Certificate of the Series Supplement.
	  		

  

 C-2-2 








 IN WITNESS WHEREOF, the undersigned has duly executed and delivered this certificate this ____ day of
____________, ____. 
  

					
	 DISCOVER BANK,
 as Master
Servicer

			
	By:	 	 	 	 
		 	Title:	 	


  

 C-2-3