**Exhibit 34.3**

**REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

DB Servicing Corporation

Riverwoods, IL 

We have examinedmanagement’s assertion, included in the accompanying Management’s Assertion on Compliance with Regulation AB Criteria, that DB Servicing Corporation (DBSC) complied with the servicing criteria set forth in Item 1122(d) of theSecurities and Exchange Commission’s Regulation AB for the asset-backed securities transactions involving credit card receivables conducted by Discover Card Master Trust I and Discover Card Execution Note Trust (the “Platform”) as ofand for the year ended November 30, 2012, excluding the criteria set forth in Items 1122 (d)(1)(i), (d)(1)(iii), (d)(1)(iv), (d)(2)(ii), (d)(2)(iii), (d)(2)(iv), (d)(2)(v), (d)(2)(vi), (d)(2)(vii), (d)(3)(i), (d)(3)(ii), (d)(3)(iii),(d)(3)(iv), (d)(4)(i), (d)(4)(ii), (d)(4)(iii), (d)(4)(v), (d)(4)(x), (d)(4)(xi), (d)(4)(xii), (d)(4)(xiii), and (d)(4)(xv), which management has determined are not applicable to the activities performed by DBSC with respect to the Platform.Appendix A to management’s assertions identifies the individual asset backed-transactions defined by management as constituting the Platform. Management is responsible for DBSC’s compliance with the servicing criteria. Our responsibilityis to express an opinion on management’s assertions about DBSC’s compliance with the servicing criteria based on our examination. 

Our examination was conducted in accordance with attestation standards issued by the American Institute of Certified Public Accountants, as adopted bythe Public Company Accounting Oversight Board (United States) and, accordingly, included examining, on a test basis, evidence about DBSC’s compliance with the applicable servicing criteria, including tests on a sample basis of the servicingactivities related to the Platform, determining whether DBSC performed those selected activities in compliance with the servicing criteria during the specified period, and performing such other procedures as we considered necessary in thecircumstances. Our procedures were limited to selected servicing activities performed by DBSC during the period covered by this report and accordingly, such samples may not have included servicing activities related to each asset-backed transactionincluded in the Platform. Further, an examination is not designed to detect noncompliance arising from errors that may have occurred prior to the period specified above that may have affected the balances or amounts calculated or reported by DBSCduring the period covered by this report. We believe that our examination provides a reasonable basis for our opinion. Our examination does not provide a legal determination on DBSC’s compliance with the servicing criteria. 

As described in management’s assertion, for servicing criteria 1122(d)(2)(i), 1122(d)(4)(iv), 1122(d)(4)(vii) and 1122(d)(4)(viii), DBSC has engagedvendors to perform certain activities required by this servicing criteria. DBSC has determined that these vendors are not considered a “servicer” as defined in Item 1101(j) of Regulation AB, and DBSC has elected to take responsibilityfor assessing compliance with the servicing criteria applicable to these vendors as permitted by Interpretation 17.06 of the SEC Division of Corporation Finance Manual of Publicly Available Telephone Interpretations (Interpretation 17.06). Aspermitted by Interpretation 17.06, DBSC has asserted that it has policies and procedures in place designed to provide reasonable assurance that the vendors’ activities comply in all material respects with the servicing criteria applicable tothese vendors. DBSC is solely responsible for determining that it meets the SEC 

requirements to apply Interpretation 17.06 for these vendors and related criteria as described in its assertion, and we performed no procedures with respect to DBSC’s determination of itseligibility to use Interpretation 17.06. 

In our opinion, management’s assertion that DBSC complied with the aforementioned applicableservicing criteria as of and for the year ended November 30, 2012 for the Platform is fairly stated, in all material respects. 

/s/Deloitte & Touche LLP 

Chicago, IL 

February 19, 2013