X0202 4 2005-10-20 0000899171 CDW CORP CDWC 0001337761 Berger Dennis G 200 NORTH MILWAUKEE AVENUE VERNON HILLS IL 60061 0 1 0 0 VP, Coworker Services Common Stock, $.01 par value 2005-10-20 4 A 0 8400 0 A 8400 D The shares were awarded pursuant to a Restricted Stock Award under the CDW Inducement Stock Grants Made to Newly Hired Employees Plan. The shares shall vest in three equal installments on the first three anniversaries of the hire date for Mr. Berger. Robert J. Welyki, Attorney-in-fact 2005-10-21