Western Digital Corp. announced that it will release its fourth quarter 2011 financial results on July 21, 2011.

For more information visit: www.westerndigital.com

Western Digital trades on the NYSE under the symbol WDC.

Unedited press release follows:

WD® Sets July 21 for Fourth Quarter Fiscal 2011 Financial Results Conference Call and Webcast

IRVINE, Calif., July 1, 2011 — Western Digital Corp. (NYSE: WDC) today announced that the company will release its financial results for the fourth fiscal quarter ending July 1, 2011 after the close of market on the NYSE on Thursday, July 21, 2011. The investment community conference call to discuss these results will be broadcast live over the Internet that day at 2 p.m. Pacific/5 p.m. Eastern. The live and archived conference call webcast can be accessed online at www.westerndigital.com/investor, click on “Conference Calls.” The telephone replay dial-in number is 866.501.8774 in the U.S. or +1.203.369.1854 for international callers.

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 home entertainment 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 Website (www.westerndigital.com) to access a variety of financial and investor information.