Exhibit 4.1  



	[LOGO]	 	CUSIP	 	XXXXXX XX X
	 	 	Holder ID	 	XXXXXXXXXX
	 	 	Insurance Value	 	1,000,000.00
	 	 	Number of Shares	 	123456
	 	 	DTC	 	12345678 123456789012345
	PO BOX 43004, Providence, RI 02940-3004	 	 	 	 	 	 	 	 
	 	 	Certificate Numbers	 	Num/No.	 	Denom.	 	Total
	MR A SAMPLE	 	1234567890/1234567890	 	1	 	1	 	1
	DESIGNATION (IF ANY)	 	1234567890/1234567890	 	2	 	2	 	2
	ADD 1	 	1234567890/1234567890	 	3	 	3	 	3
	ADD 2	 	1234567890/1234567890	 	4	 	4	 	4
	ADD 3	 	1234567890/1234567890	 	5	 	5	 	5
	ADD 4	 	1234567890/1234567890	 	6	 	6	 	6
	 	 	Total Transaction	 	 	 	 	 	7





	
COMMON STOCK	
 	

 	
 	

COMMON STOCK
	PAR VALUE $0.01 PER SHARE	 	 	 	THIS CERTIFICATE IS TRANSFERABLE IN

CANTON, MA AND JERSEY CITY, NJ
	 	 	[LOGO]	 	 
	Certificate Number

ZQ 000000	 	 	 	Shares

**600620******

***600620*****

****600620****

*****600620***

******600620**
	EQUALLOGIC, INC.
 INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE
	

THIS CERTIFIES THAT	
 	

MR. SAMPLE & MRS. SAMPLE & MR. SAMPLE & MRS. SAMPLE	
 	

CUSIP 29440V 10 8

SEE REVERSE FOR CERTAIN DEFINITIONS
	

is the owner of	
 	

*** SIX HUNDRED THOUSAND SIX HUNDRED AND TWENTY ***	
 	

 




FULLY-PAID
AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF 


EqualLogic, Inc. (hereinafter called the "Company"), transferable on the books of the Company in person or by duly authorized attorney, upon
surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby, are issued and shall be held subject to all of the provisions of the Certificate of Incorporation,
as amended, and the By-Laws, as amended, of the Company (copies of which are on file with the Company and with the Transfer Agent), to all of which each holder, by acceptance hereof,
assents. This Certificate is not valid unless countersigned and registered by the Transfer Agent and Registrar. 


Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. 



	/s/ Donald P. Bulens

President	 	 	 	DATED «Month Day, Year»
	 	 	[SEAL]	 	COUNTERSIGNED AND REGISTERED: COMPUTERSHARE TRUST COMPANY, N.A.TRANSFER AGENT AND REGISTRAR,
	/s/ John F. Milton

Secretary	 	 	 	 	 
	 	 	 	 	By	 
	 	 	 	 	 	
 AUTHORIZED SIGNATURE










EQUALLOGIC, INC.



THE
COMPANY WILL FURNISH WITHOUT CHARGE TO EACH SHAREHOLDER WHO SO REQUESTS, A SUMMARY OF THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH
CLASS OF STOCK OF THE COMPANY AND THE QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH PREFERENCES AND RIGHTS, AND THE VARIATIONS IN RIGHTS, PREFERENCES AND LIMITATIONS DETERMINED FOR EACH SERIES,
WHICH ARE FIXED BY THE CERTIFICATE OF INCORPORATION OF THE COMPANY, AS AMENDED, AND THE RESOLUTIONS OF THE BOARD OF DIRECTORS OF THE COMPANY, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE
VARIATIONS FOR FUTURE SERIES. SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE COMPANY OR TO THE TRANSFER AGENT. THE BOARD OF DIRECTORS MAY REQUIRE THE OWNER OF A LOST OR
DESTROYED STOCK CERTIFICATE, OR HIS LEGAL REPRESENTATIVES, TO GIVE THE COMPANY A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON
ACCOUNT OF THE ALLEGED LOSS OR DESTRUCTION OF ANY SUCH CERTIFICATE OR THE ISSUANCE OF SUCH NEW CERTIFICATE. 


        The
following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or
regulations: 



	TEN COM	—	 	as tenants in common	 	 	 	UNIF GIFT MIN ACT	—	 	
	 	Custodian	 	

	TEN ENT	—	 	as tenants by the entireties	 	 	 	 	 	 	(Cust)	 	 	 	(Minor)
	JT TEN	—	 	as joint tenants with right of survivorship and not as tenants in common	 	 	 	 	 	 	under Uniform Gifts to Minors Act

    
 (State)
	

 	

 	
 	

 	
 	

 	
 	

UNIF TRF MIN ACT	

—	
 	

	
 	

Custodian (until age       )	
 	


	 	 	 	 	 	 	 	 	 	 	(Cust)	 	 	 	(Minor)
	 	 	 	 	 	 	 	 	 	 	under Uniform Transfers to Minors Act

    
 (State)





        Additional
abbreviations may also be used though not in the above list. 


        For
value received,
                                         
                                          
                                          
                    hereby sell, assign and transfer unto
 



	PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE
    
	 	 	 	 
	

    
 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE)
	    

	

    

	

    
	
 	

shares
	of the common stock represented by the within Certificate, and do hereby irrevocably constitute and appoint
	    
	 	Attorney
	to transfer the said stock on the books of the within-named Corporation with full power of substitution in the premises.





	

Dated:	
 	

 	

20	

 	
 	

Signature(s) Guaranteed: Medallion Guarantee Stamp
	 	 	
	 	
	 	 
	 	 	 	 	 	 	THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan Associations and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM,
PURSUANT TO S.E.C. RULE 17Ad-15.
	Signature:	 	 	 	 	 	 
	 	 	
	 	 
	

Signature:	
 	

 	

 	

 	
 	

 
	 	 	
	 	 
	 	 	Notice: The signature to this assignment must correspond with the name as written upon the face of the certificate, in every particular, without alteration or enlargement, or any change whatever.