PMC-Sierra and Seagate Technology Achieve 6Gb/s SAS Interoperability

Business Wire, April 7, 2008

SANTA CLARA, Calif. -- PMC-Sierra, Inc. (NASDAQ:PMCS) and Seagate Technology (NYSE:STX) today announced the companies achieved interoperability between PMC-Sierra's end-to-end 6Gb/s SAS chipset and Seagate's early development 6Gb/s SAS Hard Disk Drives (HDDs). This successful demonstration of 6Gb/s Serial Attached SCSI (SAS) interoperability provides server and storage system equipment manufacturers with an end-to-end system architecture that delivers new levels of scalability, availability and reliability.

Interoperability testing demonstrated 6Gb/s line rate traffic exchanges between Seagate's early development 6Gb/s SAS HDDs and PMC-Sierra's 6Gb/s SAS chipsets, which includes the Tachyon[R] SPC 8x6G SAS protocol controller, the SRC 8x6G RAID-on-Chip controller and maxSAS[TM] SXP 36/24x6GSec expander switches.

"As a leading provider of enterprise storage system solutions for networked and server storage applications, PMC-Sierra is focused on ensuring that fully interoperable components are available to reduce time-to-market for 6Gb/s SAS/SATA systems," said Travis Karr, vice president of marketing for PMC-Sierra's Enterprise Storage Division. "This achievement provides server and storage system OEMs with the confidence that PMC-Sierra and Seagate([R]) products will work together seamlessly in a SAS-2 eco-system."

"Seagate's Serial Attached SCSI enterprise customers demand the highest levels of reliability and performance along with the latest technology in our products," said Henry Fabian, executive director of Seagate's Enterprise Product Marketing. "By ensuring interoperability with other technology leaders like PMC-Sierra, Seagate is leading the way with 6Gb/s SAS to enable our customers to benefit from fully interoperable system solutions in the future."

About PMC-Sierra's Storage Products

PMC-Sierra is a leading provider of enterprise storage system solutions for networked (SAN/NAS) and server storage applications, with a broad portfolio of Fibre Channel and SAS/SATA protocol controllers, encryption protocol controllers, RAID controllers and disk interconnect products. PMC-Sierra's Tachyon protocol controllers, Fibre Channel loop switches, enclosure management controllers and maxSAS[TM] expander switches and multiplexers provide the most comprehensive solution for enterprise-class storage systems. Together, these products are providing end-to-end semiconductor and software solutions to the industry's leading storage OEMs and ODMs. For more information, visit http://www.pmc-sierra.com/storage.> About PMC-Sierra

PMC-Sierra(TM) is a leading provider of broadband communications and storage semiconductors for metro, access, fiber to the home, wireless infrastructure, storage, laser printers, and fiber access gateway equipment. PMC-Sierra offers worldwide technical and sales support, including a network of offices throughout North America, Europe, Israel and Asia. The company is publicly traded on the NASDAQ Stock Market under the PMCS symbol. For more information, visit www.pmc-sierra.com.

About Seagate

Seagate is the worldwide leader in the design, manufacture and marketing of hard disc drives and storage solutions, providing products for a wide range of applications, including Enterprise, Desktop, Mobile Computing, Consumer Electronics and Branded Solutions. Seagate's business model leverages technology leadership and world-class manufacturing to deliver industry-leading innovation and quality to its global customers, with the goal of being the time-to-market leader in all markets in which it participates. The company is committed to providing award-winning products, customer support and reliability to meet the world's growing demand for information storage. Seagate can be found around the globe and at http://www.seagate.com.

Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. All other trademarks or registered trademarks are the property of their respective owners. When referring to hard drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer's operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage. Quantitative usage examples for various applications are for illustrative purposes. Actual quantities will vary based on various factors, including file size, file format, features and application software. Seagate reserves the right to change, without notice, product offerings or specifications.

(c) Copyright PMC-Sierra, Inc., 2008. All rights reserved. PMC and Tachyon are registered trademarks of PMC-Sierra, Inc., in the United States and other countries. PMC-SIERRA, PMCS, maxSAS and "Enabling connectivity. Empowering people." are trademarks of PMC-Sierra, Inc. Other product and company names mentioned herein may be trademarks of their respective owners.