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Success Story: Western Digital 250 GB My Book

Western Digital dominated the external hard drive market, grabbing eight of the top 10 slots, according to a study done by The NPD Group. Taking the top spot with 6.9 percent of the market share was the 250GB My Book WDG1U2500N. This model was first introduced in March 2006. It is a 7,200 rpm model with a USB 2.0 interface.

Top 10 External Hard Drives

Unit volume share at retail

June 2006 – May 2007