Vitesse Extends Market Leadership Position By Delivering A New Family of Advanced Serial ATA Products For The Enterprise and Midrange Storage Markets

1/21/2003 - To address the demand for high-availability, high-performance, network-accessible, online storage, Vitesse Semiconductor Corp. (Nasdaq:VTSS) announced its family of Serial ATA products and delivered its first three devices to the market. Vitesse's Serial ATA products offer storage OEMs the cost-saving advantages that have been enjoyed by their counterparts in desktop storage systems without sacrificing functionality, performance or reliability. Users of Vitesse's Serial ATA products will benefit from a host of features such as transparency with legacy Parallel ATA, high-performance data transfer capability (150 MB/s per channel sustained, 1064 MB/s per channel burst), reduced gate count, lower power consumption and smaller board real estate requirements.

Vitesse's Serial ATA family includes: host bus controllers for use in applications ranging from PCs to Servers to Network Attached Storage systems; Serial ATA "Tailgate" devices that provide multiple levels of redundancy in the drive channel that achieve reliability metrics of traditional enterprise class storage; Serial ATA Enclosure Management Controllers for delivery of robust OA&M functions; and Serial ATA Fabric Switches for building very high-density, small-footprint storage facilities. A host bus controller (VSC7174) and two enclosure management controllers (VSC420 and VSC425) are available today. All devices conform to both the Serial ATA 1.0 and Serial ATA II, Phase I (current extensions) specifications with plans to adopt future extensions as they are ratified by the standards committee.

"Serial ATA technology is poised to become a dominant storage technology in systems ranging from the desktop to the enterprise," said Jeremey Donovan, chief analyst with Gartner. "Vendors that provide complete 'server to disk array' solutions will be well positioned for the Serial ATA market."

Vitesse Serial ATA Product Family High Performance Controllers for Host Bus Adapters
The VSC7174 is an industry leading single chip PCI/PCI-X to Serial ATA host bus controller that provides a robust, high-performance interface to Serial ATA Disk Drives, CD-ROMs, DVD-ROMs and tape facilities. The device supports 8b/10b encoded data at Serial ATA v1.0 transfer rates of 1.5 Gb/s, equivalent to 150 MB/s of raw transfer performance, and the VSC7174 can deliver burst transfer rates of up to 1064 MB/s. This device is driver compatible with existing operating systems supporting parallel ATA interfaces (Master/Slave) and provides an easy migration path for existing IDE customers. In addition to legacy ATA support, the VSC7174 provides a Direct Port Access (DPA or Master/Master) mode of operation ensuring maximum performance in multiple applications. Rounding out the feature set is Serial ATA II command queuing support, drive hot swap capability, activity LED Drivers, and a wide-swing operating mode for backplane applications.

Robust SATA Enclosure Management Engines
The VSC420 and VSC425 are the industry's first enclosure management controllers developed specifically for the Serial ATA market. These devices provide the monitoring and reporting of enclosure critical information including: drive status, fan status and RPM, and temperature readings. These products are usable in both SEP and SEMB applications.

"Vitesse's Serial ATA products are optimized for storage applications. The outstanding performance to price ratio on these products will prompt storage OEMs to incorporate Serial ATA devices into their next-generation systems for midrange and certain enterprise solutions," commented Sam Barnett, product line manager for Serial ATA products at Vitesse.

Product Support, Pricing and Availability
The quad host bust controller (VSC7174) and the enclosure management controllers (VSC420 and VSC425) are available immediately in sample quantities with production slated for the second quarter of 2003. Pricing for the VSC7174 is $15.00 for quantities of 10 thousand and for the VSC420 and VSC425, $9.60 and $12.00 respectively, in quantities of 10 thousand. Evaluation platforms and software development kits are available for all of these products and can be obtained by contacting Vitesse or its representatives.

About Vitesse
Vitesse Semiconductor Corporation is a leading designer and supplier of innovative, high-performance integrated circuits (ICs) and optical modules used in next generation networking and optical communications equipment. The Company's products address the needs of Enterprise, Access, Metro, Core, and Optical Transport network equipment manufacturers who demand a robust combination of high-speed, high-service delivery and low-power dissipation in their products. In concert with its broad communications product portfolio, Vitesse also develops ICs for storage area networking and enclosure management. Company and product information is available by calling 1-800-VITESSE or at

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