3Com Wins Patent Infringement Trial Against Realtek

Business Wire,  April 10, 2008  

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MARLBOROUGH, Mass. -- 3Com Corporation (NASDAQ: COMS) today announced that on April 9, 2008, a jury in the U.S. District Court for the Northern District of California awarded the company $45.3 million for past patent infringement by Realtek Semiconductor Corporation (TSE: 2379). 3Com was represented in the case by Simpson Thacher & Bartlett, LLP.

3Com's successful lawsuit against Realtek involved several claims in four patents. The four patents relate to 3Com's pioneering network interface technology, particularly its parallel processing technology, which improves the transfer of data between a host (such as a personal computer) and a network. The jury found all asserted claims of the four 3Com patents valid and infringed. The jury also found that Realtek induced others to infringe the 3Com patents in the United States, and that Realtek willfully infringed three of 3Com's patents.

3Com is now pursuing a final judgment from the Court consistent with the jury verdict. 3Com will request the Court in its final judgment to consider and include enhanced damages due to the finding of willfulness, pre-judgment interest, and all other appropriate relief.

"We are extremely pleased that the jury has found in favor of 3Com in this important case and recognized the damage caused to 3Com by Realtek's willful actions," said Neal Goldman, 3Com executive vice president, chief administrative and legal officer. "3Com has a very broad portfolio of networking technology patents and an active licensing program. We will continue to aggressively protect our valuable patents against any and all infringements."

Realtek's controller chip products that the jury found to infringe on 3Com patents are as follows:

10M/100M Products:

RTL8139

RTL8139A(L)

RTL8139B(L)

RTL8139C(L)

RTL8139D(L)

RTL8102(L)

RTL8100(L)

RTL8100B(L)

RTL8100C(L)

RTL8101(L)

RTL8139C+ Product:

RTL8139C(L)+

Gigabit Gate-Level Products:

RTL8169

RTL8169S-32

RTL8110S-32

RTL8110S-64

RTL8169SB(L)

RTL8110SBL

RTL8169SC(L)

Gigabit RTL Product:

RTL8110SC(L)

10M/100M PCI-Express RTL Products:

RTL8100E

RTL8101E

Safe Harbor

This news release contains forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including forward-looking statements regarding our business objectives and our belief about a reversal in a deferred tax liability provision. These statements are neither promises nor guarantees, but involve risks and uncertainties that could cause actual results to differ materially from those set forth in the forward-looking statements, including, without limitation, risks relating to: our ability to grow profitably and receive approval for lower tax rates under PRC law and other risks detailed in the Company's filings with the SEC, including those discussed in the Company's quarterly report filed with the SEC on Form 10-Q for the quarter ended March 1, 2008.

3Com Corporation does not intend, and disclaims any obligation, to update any forward-looking information contained in this release or with respect to the announcements described herein.

The non-GAAP measures used by the Company exclude restructuring, amortization, in-process research and development, stock-based compensation expense and, if applicable in the relevant period, unusual items, such as a potential change in our tax status in the PRC, the inventory-related adjustment portion of the purchase accounting effects of the Company's acquisition of 49% of H3C, the gains on sales of assets, the gain on an insurance settlement and expenses related to our pending acquisition by affiliates of Bain Capital. The required reconciliations and other disclosures for all non-GAAP measures used by the Company are set forth later in this press release, in the Current Report on Form 8-K furnished to the SEC on the date hereof and/or in the investor relations section of our Web site, www.3com.com.

References to the financial information included in this news release reflect rounded numbers and should be considered approximate values.

About 3Com Corporation

3Com Corporation (NASDAQ: COMS) is a leading provider of secure, converged voice and data networking solutions for enterprises of all sizes. 3Com offers a broad line of innovative products backed by world class sales, service and support, which excel at delivering business value for its customers. 3Com also includes H3C Technologies Co., Limited (H3C), a China-based provider of network infrastructure products. H3C brings high-performance, cost-effective product development and a strong footprint in one of the world's most dynamic markets. Through its TippingPoint division, 3Com is a leading provider of network-based intrusion prevention systems that deliver in-depth application protection, infrastructure protection, and performance protection. For further information, please visit www.3com.com, or the press site www.3com.com/pressbox.

Copyright (c) 2008 3Com Corporation. 3Com, the 3Com logo and TippingPoint are registered trademarks and H3C is a trademark of 3Com Corporation or its wholly owned subsidiaries. All other company and product names may be trademarks of their respective holders.

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