Exhibit 16.1
June 28, 2011
Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549
Commissioners:
We have read the statements made by CDW Corporation (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to Item 4.01 of Form 8-K, as part of the Form 8-K of CDW Corporation dated June 22, 2011. We agree with the statements concerning our Firm in such Form 8-K.
Very truly yours,
/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP, One North Wacker, Chicago, IL 60606
T: (312) 298 2000, F: (312) 298 2001, www.pwc.com/us