Hard Disk Drive minimizes power consumption.

Press Release Summary:

GreenPower(TM) WD® AV hard drives provide cool, quiet, energy efficient operation in desktop, video recording, and audio video applications. Capacities include 500 GB, 750 GB and 1 TB models. Hard drive utilizes IntelliPower(TM) technology, which balances spin speed, transfer rate, and caching algorithms to deliver power savings. Multi-stage formed stainless steel top covers and precision-designed base castings minimize sound levels; drives emit less than one sone.

Original Press Release:

WD® Lowers Power Consumption, Further Cooling and Quieting Operation for Demanding Audio and Video Markets

Company's WD AV Line of Hard Drives Adds GreenPower(TM) Model

LAKE FOREST, Calif., Jan. 3 -- Drawing on its expertise as a leading supplier to major consumer electronics and surveillance manufacturers worldwide, Western Digital Corp.® (NYSE:WDC) has designed its new GreenPower(TM) (GP) version of its WD® AV hard drives with technologies that provide cooler and quieter operation and lower power consumption.

WD's GreenPower family of hard drives for desktop, enterprise and audio video applications reduces power consumption by as much as 40 percent over standard drives in their respective classes. The new WD AV-GP family of drives offers capacities of 500 gigabytes (GB), 750 GB and one terabyte (TB), and is perfect for audio video applications such as DVRs (digital video recorders), as well as surveillance video recording.

Audio and video recording applications, including DVRs, IP gateways and mainstream surveillance systems, often demand 24x7 operation from hard drives, have different requirements than personal computers, such as higher reliability, universal compatibility, low-power consumption and the ability to simultaneously record multiple audio and/or high-definition video streams. Consumer applications such as DVRs with stringent environment and usage profiles require hard drives to consume less power, generate less heat, and operate quietly.

AV Intelligent Drive Technology

WD AV-GP hard drives deliver exceptional power conservation, run ultra-cool and quiet, while providing solid performance. The following technologies enable the WD AV-GP platform:

IntelliPower(TM) -- A fine-tuned balance of spin speed, transfer rate,
and caching algorithms designed to deliver both significant power
savings and solid performance. Additionally, GreenPower drives consume
less current during start up allowing more drives to spin up
simultaneously resulting in faster system readiness.

IntelliSeek(TM) -- Calculates optimum seek speeds to lower power
consumption, noise and vibration.

IntelliPark(TM) -- Delivers lower power consumption by automatically
unloading recording heads during idle to reduce aerodynamic drag and by
disabling read/write channel electronics.

Cool and Quiet

In addition to the sound-reducing properties of IntelliPower, IntelliSeek and IntelliPark, WD utilizes multi-stage formed stainless steel top covers and precision-designed base castings that minimize sound levels for consumer sound-sensitive applications. The result is WD AV-GP drives emit less than one sone, which is virtually below the threshold of human hearing.

More information about WD AV-GP drives may be found on the company's Web site at http://www.wdc.com/en/products/Products.asp?DriveID=388

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 products.

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.

Heather Skinner
Public Relations

Web site: http://www.westerndigital.com/

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