“The VSC8479-01 is the latest generation of Vitesse’s popular VSC8479 product family. It is the first 10G transceiver to meet and exceed the 10G-EPON IEEE P802.3av/D3.0 Draft standard for burst-mode performance,” said Gary Paules, product marketing manager, for Vitesse. “It provides the high-performance functionality as well as the small size needed for this challenging application at a cost-effective price point.”

The new VSC8479-01 supports both XFI and SFI module interfaces, making it ideal for XFP and SFP+ host applications alike. Boasting the industry’s smallest footprint, the 12 x 12mm package size enables increased port counts and higher densities on the system host card. In addition to 10G-EPON system applications, the VSC8479-01 supports data rates ranging from 9.95 Gbps to 11.35 Gbps specifically for multi-rate applications including: 10 Gigabit Ethernet (10GE); 10G Fibre Channel (10G FC); OC-192 SONET/SDH; and optical transport networks (OTN). Superior 40mUI pk to pk jitter generation provides excellent signal quality performance for improved link margin in all applications. Additionally, the device has a full suite of BIST functions and extensive support collateral, such as various evaluation card configurations depending on the target application.

The Vitesse VSC8479 family, with over 100 design wins, is widely used in both 300-pin MSA transponder and XFP host applications. Due to the wide acceptance of 10G serial ports in Carrier and Enterprise applications, industry experts have predicted 10G port shipments will increase from one million in 2007 to seven million in 2011, a compounded growth rate in excess of 60 percent per year.

Vitesse to Present and Demonstrate at Optical Fiber Conference (OFC) in San Diego

Vitesse will showcase a live demonstration of 10G-EPON symmetric burst mode driver and SerDes solution at the OFC/NFOEC 2009 Expo, March 24-26, 2009, in San Diego, Calif., at the San Diego Convention Center. In addition, Vitesse will chair the “Advanced PON/10G-PON” technical session on Monday, March 23, from 4-6 p.m., during the NFOEC NME session. Please visit Vitesse at Corporate Village Rooms #3044 and #2945 in Hall D.

About Vitesse

Vitesse designs, develops and markets a diverse portfolio of high-performance, cost-competitive semiconductor solutions for Carrier and Enterprise networks worldwide. Engineering excellence and dedicated customer service distinguish Vitesse as an industry leader in Gigabit Ethernet LAN, Ethernet-over-SONET, Fibre Channel, Serial Attached SCSI, Optical Transport, and other applications. Vitesse innovation empowers customers to deliver superior products for Enterprise, Access, Metro, and Core applications. Additional company and product information is available at www.vitesse.com.

Vitesse is a registered trademark in the United States and/or other jurisdictions of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective holders.

Safe Harbor

Statements made in this release that are not historical facts are “forward-looking” statements (as defined in the Private Securities Litigation Reform Act of 1995) that involve risks and uncertainties and are subject to change at any time. These forward-looking statements may include, but are not limited to, statements containing words such as “anticipate,” “believe,” “plan,” “estimate,” “expect,” “hope,” “intend,” and similar expressions. Factors that could cause actual results to differ are identified in the public filings made by Vitesse with the Securities and Exchange Commission and include the fact that we have disclosed that you should not rely upon our published financial statements and the fact that we have not filed all of our reports required by the Securities Exchange Act of 1934. More information on factors that could affect our business and financial results are included in our public filings made with the Securities and Exchange Commission, which are available on the web site of the Securities and Exchange Commission, www.sec.gov.

The forward-looking statements involve known and unknown risks, uncertainties and other factors that are, in some cases, beyond our control. We caution investors that any forward-looking statements made by us are not guarantees of future performance, including, but not limited to, the risks that the recently announced proposed settlement of certain lawsuits against the Company will not be completed or approved by the court, that any court approval will be successfully reversed on appeal, or that the settlement agreement is terminated or cancelled under its terms. We disclaim any obligation to update any such factors or to announce publicly the results of any revisions to any of the forward-looking statements to reflect future events or developments.

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