CDW Corp - FORM 10-Q - EX-32.2 - CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 906 - August 15, 2011

Attached files

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EX-32.1 - CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 906 - CDW Corpdex321.htm
EX-31.2 - CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 302 - CDW Corpdex312.htm
EX-31.1 - CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 302 - CDW Corpdex311.htm
10-Q - FORM 10-Q - CDW Corpd10q.htm

EXHIBIT 32.2

CERTIFICATION PURSUANT TO SECTION 1350 OF CHAPTER 63

OF TITLE 18 OF THE UNITED STATES CODE

I, Ann E. Ziegler, the chief financial officer of CDW Corporation (“CDW”), certify that (i) the Quarterly Report on Form 10-Q for the three months ended June 30, 2011 (the “10-Q”) of CDW fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and (ii) the information contained in the 10-Q fairly presents, in all material respects, the financial condition and results of operations of CDW.

/s/ Ann E. Ziegler
Ann E. Ziegler

Senior Vice President and Chief Financial Officer

CDW Corporation

August 15, 2011

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