WD® AND SANDISK TEAM UP TO CREATE INNOVATIVE SOLID STATE HYBRID DRIVES

SanDisk Brings Fast Flash Memory Technology
to the World’s Thinnest 2.5-inch Solid State Hybrid Drives from WD

WD®, a Western Digital (NASDAQ: WDC) company, and SanDisk Corporation (NASDAQ: SNDK), a global leader in flash memory storage solutions, announced that the two companies are collaborating to introduce hybrid storage devices that feature best-in-class flash memory technology from SanDisk and best-in-class hard drive technology from WD.

SanDisk is supplying a SanDisk iSSD™ storage device for the WD Black™ solid state hybrid drive (SSHD), the world’s thinnest 2.5-inch SSHD solution, which utilizes both WD proprietary hybrid technology and industry standard SATA IO technology. The SanDisk iSSD brings an elegant balance of performance, low power consumption, cost, reliability, and a compact form factor to this SSHD, which will offer ample storage to meet consumers’ growing appetite for digital content as well as flash-enabled speed, data throughput and responsiveness – all within ultra-slim form factors.

“I am delighted for SanDisk to team up with WD on these exciting new hybrid products,” said Kevin Conley, senior vice president and general manager of client storage solutions at SanDisk. “By combining SanDisk’s unparalleled flash memory expertise and technology with the hard drive know-how of WD, WD Black SSHDs offer outstanding hard drive-like capacity, and the slim form factor and the level of performance that you will only get with flash memory solutions.”

“Working with SanDisk, WD realized our vision for products that combine the best of both technologies,” said Matt Rutledge, vice president of client computing at WD. “WD’s SSHDs are a significant achievement in the continuing SSHD/flash storage revolution.”

About WD Black Solid State Hybrid Drives
WD Black SSHDs use WD hybrid technology that blends responsive, intelligent flash memory technology from SanDisk with high capacity hard drives from WD. This powerful combination greatly improves the PC user experience, enabling both high capacity and a higher level of performance than traditional hard disk drives, including increased speed, instant-on and faster application launching.

With device volume being a key concern for PC manufacturers who want to design slimmer devices, the WD Black SSHDs are designed to accommodate integration into the market’s thinnest notebooks. The WD Black 5mm SSHD offers 500GB1 of capacity, while utilizing almost 50 percent less volume than current standard notebook hard drives (which are approximately 9.5mm). The low-profile of the solid state hybrid drive is complemented by the extremely small form factor of the SanDisk iSSD, which is built on 19 nanometer (nm) process technology, the world's smallest and most advanced semiconductor manufacturing process. The WD Black 5mm SSHDs are shipping to OEMs. WD is also currently shipping to OEMs ultra-slim, 7mm and 9.5mm SSHDs for portable devices.

About WD
WD, a Western Digital company, is a long-time innovator and storage industry leader. As a storage technology pacesetter, the company produces reliable, high-performance hard disk drives and solid state drives. These drives are deployed by OEMs and integrators in desktop and mobile computers, enterprise computing systems, embedded systems and consumer electronics applications, as well as by the company in providing its own storage products. WD’s leading storage devices and systems, networking products, media players and software solutions empower people around the world to easily save, store, protect, share and experience their content on multiple devices. WD was established in 1970 and is headquartered in Irvine, Calif. For more information, please visit the company’s website at www.wd.com.

Western Digital Corp. (NASDAQ: WDC), Irvine, Calif., is a global provider of products and services that empower people to create, manage, experience and preserve digital content. Its companies design and manufacture storage devices, networking equipment and home entertainment products under the WD, HGST and G-Technology brands. Visit the Investor section of the company's website (www.westerndigital.com) to access a variety of financial and investor information.

About SanDisk
SanDisk Corporation (NASDAQ: SNDK) is a global leader in flash memory storage solutions, from research and development, product design and manufacturing to branding and distribution for commercial and retail channels. Since 1988, SanDisk's innovations in flash memory and storage system technologies have provided customers with new and transformational digital experiences. SanDisk's diverse product portfolio includes flash memory cards and embedded solutions used in smart phones, tablets, digital cameras, camcorders, digital media players and other consumer electronic devices, as well as USB flash drives and solid state drives (SSD) for the computing market. SanDisk's products are used by consumers and enterprise customers around the world.

SanDisk is a Silicon Valley-based S&P 500 and Fortune 500 company, with more than half its sales outside the United States. For more information, visit www.sandisk.com.