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CDW said sales for the third quarter of 2007 were $2.1 billion compared to $1.7 billion in the third quarter of 2006, an increase of 21.8 percent.

Average daily sales for the Vernon Hills, Ill., company in the third quarter of 2007 were $33.6 million compared to $27.6 million in the third quarter of 2006, representing a 21.8 percent increase, the company said in a statement.

Total corporate sector segment sales in the third quarter of 2007 were $1.2 billion compared to $1 billion in the third quarter of 2006, representing an increase of 12.6 percent. Third quarter of 2007 average daily sales for the corporate sector segment were $19.4 million compared to $17.2 million in the third quarter of 2006, representing a 12.6 percent increase.

Total public sector segment sales in the third quarter were $766.3 million compared to $651.1 million in the same period last year, representing an increase of 17.7 percent. Third quarter of 2007 average daily sales for the public sector segment were $12.2 million compared to $10.3 million in the third quarter of 2006, representing an increase of 17.7 percent.

The company said that its third quarter 2007 results do include sales from its Oct. 11, 2006 acquisition of Berbee Information Networks; however, third quarter 2006 results do not include Berbee sales.

Product categories that achieved the strongest year-over-year unit volume growth for the month on an average daily basis included desktop computers, data storage, software, video and memory.

The company is scheduled to announce third-quarter earnings results on Oct. 23.