WD Brings Fast Portable Storage to Mac Users On-the-Go

Sleek New My Passport Studio Drives Designed for Mac with Faster FireWire
Interface and Time Machine Support

LAKE FOREST, Calif., May 21 /PRNewswire-FirstCall/ — Expanding on its
popular portable storage offerings, WD (NYSE: WDC) today introduced its new
Mac-formatted My Passport Studio Portable Drives. The newest members of the
My Passport family are designed for Mac users on-the-go and are equipped
with both FireWire 400 and USB 2.0 interfaces, a clever capacity gauge, and
include a soft drawstring carrying bag for protection from scratches and
dirt. Available now at select retailers and at WD’s online store
(http://www.shopwd.com), the My Passport Studio portable drives are offered
in capacities of 320 GB and 250 GB.

Weighing in at less than 5 ounces, the My Passport Studio portable drives
make it easy to securely carry office files, thousands(1) of songs, videos
or photos and back up a Macintosh laptop using Apple Time Machine backup
software utility. With an elegant silver metallic finish that perfectly
complements other Mac products, these portable drives feature a
shock-resistant enclosure to provide protection from the bumps and jars of
everyday life on-the-go. Ultra portable, these drives are USB-bus powered
which eliminates the need for an external power adapter(2).

“We designed the My Passport Studio portable drives to work seamlessly with
Apple’s Time Machine, making this drive an ideal storage solution for
creative pros on-the-go who require high performance storage to back up and
carry their massive amounts of digital content,” said Jim Welsh, vice
president and general manager of WD’s branded products and consumer
electronics groups. “This sleek personal storage device with a faster
FireWire interface and Mac-formatting is exactly the storage solution our
Mac customers have been clamoring for ever since we introduced the first WD
Passport portable USB drive.”

Unique features of the new My Passport Studio portable drives include:
— formatted HFS+, Journaled for Mac compatibility(3);
— FireWire 400 and USB 2.0 interfaces;
— capacity gauge that enables users to know at-a-glance how much space
is available;
— works with Apple Time Machine backup feature included in Apple’s

Leopard operating system;
— USB powered(4);
— industry-leading 5-year limited warranty; and,
— elegant silver metallic finish that perfectly complements other Mac

WD’s My Passport Studio portable drives are available now at select retail
stores and from WD’s online store (http://www.shopwd.com). MSRP for the My
Passport Studio portable drive with 250 GB capacity is $159.99 USD and 320
GB is $219.99 USD.

Product information and photos of My Passport Studio Portable Drives are
available on the company’s Web site at

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 produces reliable, high-performance
hard drives that keep users’ data accessible and secure from loss. WD
applies its storage expertise to consumer products for external, portable
and shared storage applications.

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