WD® Enters Traditional Enterprise HDD Market With First SAS Product

WD S25 SAS Hard Drives Provide High-Reliability and Performance for Mission-critical Server and Storage Applications

LAKE FOREST, Calif. - WD® (NYSE: WDC), known for its hard disk drive leadership in the desktop, mobile and consumer marketplaces, today announced its entry into the traditional enterprise market segment with volume production shipments of its first 10,000 RPM, 2.5-inch, small form factor, SAS interface hard drives. The WD S25 provides up to 300 GB of high-performance storage suitable for both mission-critical enterprise server and enterprise storage applications, such as high-I/O-driven applications and configurations, as well as data centers and large data arrays.

“Our entry into the traditional-enterprise market continues the strategic expansion and diversification of WD’s broad market and product portfolio, and significantly increases our addressable revenue opportunity,” said John Coyne, president and CEO of WD. “As with our previous market expansion and diversification efforts, WD will approach the traditional enterprise space with the same focus on quality, customer service, technology and value that has earned us strong positions in every market we serve.”

The WD S25 delivers ultra-high performance with its 3 Gb/s and 6 Gb/s SAS interfaces and a sustained sequential data rate of 128 MB/sec. In addition to all the speed required to service any enterprise need, the WD S25 also provides a 1.6 M hour MTBF rating.

The WD S25 is now available to select OEMs and shipments have begun to the two largest OEMs in the industry. “We are thrilled to launch a mission-critical-class hard drive to these high-end OEM customers,” said Tom McDorman, vice president and general manager of WD’s enterprise storage solutions business unit. “This new family of SAS products adds to our existing large capacity SATA near-line enterprise product portfolio. This first product is the foundation upon which we will expand into the previously untapped traditional enterprise market.”

More information about WD S25 enterprise SAS hard drives may be found on the company’s Web site at http://www.wdc.com/en/products/Products.asp?DriveID=677.

About WD
WD, one of the storage industry’s pioneers and long-time leaders, provides products and services for people and organizations that collect, manage and use digital information. The company designs and produces reliable, high-performance hard drives and solid state drives that keep users’ data accessible and secure from loss. Its advanced technologies are configured into applications for client and enterprise computing, embedded systems and consumer electronics, as well as its own consumer storage and media products.

WD was founded in 1970. The company’s storage products are marketed to leading OEMs, systems manufacturers, selected resellers and retailers under the Western Digital® and WD brand names. Visit the Investor section of the company’s Web site (www.westerndigital.com) to access a variety of financial and investor information.

This press release contains forward-looking statements concerning WD’s expansion into and approach to the enterprise space. The foregoing forward-looking statements are based on WD’s current expectations and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements, including: the impact of recent uncertainty and volatility in global economic conditions; supply and demand conditions in the hard drive industry; actions by competitors; unexpected advances in competing technologies; uncertainties related to the development and introduction of products based on new technologies and expansion into new data storage markets; business conditions and growth in the various hard drive markets; pricing trends and fluctuations in average selling prices; changes in the availability and cost of commodity materials and specialized product components that WD does not make internally; and other risks and uncertainties listed in WD’s recent Form 10-K filed with the SEC on August 14, 2009, to which your attention is directed. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and WD undertakes no obligation to update these forward-looking statements to reflect subsequent events or circumstances.