Isothermal Systems Research Uses Performance Technologies' Embedded Ethernet Switches in Liquid-Cooled Computer ROCHESTER, N.Y., Sept. 20 /PRNewswire-FirstCall/ -- Performance Technologies (Nasdaq NM: PTIX), a leading developer of integrated platforms, components and software solutions for the communications, military and commercial markets, announced today Isothermal Systems Research (ISR) is using the company's CPC4416 Embedded Ethernet Switch in one of its SprayCool(TM) liquid-cooled computers, used for the defense industry. ISR, the manufacturer of SprayCool products, is a leading provider of high performance, electronic system cooling and packaging solutions directed towards military and commercial applications. SprayCool systems use liquid evaporation to satisfy these applications' technical challenges with a full line of cost-effective, reliable and high performance products. "Our SprayCool Technology solutions are deployed in some of the world's most critical systems, including military and defense applications," said Roger Powers, vice president of business development for ISR. "Performance Technologies' CPC4416 Ethernet switch met our strict requirements to ensure our customers are truly receiving the most reliable and highly available solutions on the market." Performance Technologies' CPC4416 is an embedded Ethernet switch compatible with both standard CompactPCI(R) and PICMG(R) 2.16 backplanes. It is designed to be used as a high-speed interconnect within server blade chassis or as a core switch in fault-tolerant clusters of embedded systems. The CPC4416 provides increased bandwidth, performance and reliability in high availability applications such as defense, IP telephony and broadband. The CPC4416 has been designed to make system integration easier, while maximizing network performance and flexibility. "ISR's SprayCool Technology offers an innovative approach to a growing industry problem -- ever-increasing power requirements," said Jean Pierre Filion, vice president of worldwide sales for Performance Technologies. "We see a technology like this as having high demand within the military and commercial markets, and we are proud to be working with ISR to answer the call." About Isothermal Systems Research ISR, the manufacturer of SprayCool products, is a leading provider of high performance electronic system cooling and packaging solutions for the military and commercial markets. SprayCool products use liquid evaporation to meet and exceed the technical challenges associated with cooling and environmental obstacles while satisfying cost and time to market requirements. ISR is a privately held corporation located in Liberty Lake, WA and is the 2003 winner of the DOD Value Engineering Award for its SprayCool systems. SprayCool(TM) is a trademark of ISR. http://www.spraycool.com/ About Performance Technologies Performance Technologies (Nasdaq NM: PTIX) develops the platforms, components and software solutions for the world's evolving communications infrastructure. Our broad customer base includes companies in the communications, military and commercial markets. Serving the industry for more than 20 years, our complete line of packet-based products enables equipment manufacturers and service providers to offer highly available and fully-managed systems with time-to-market, performance and cost advantages. Performance Technologies is headquartered in Rochester, New York. Additional operational and engineering facilities are located in San Diego and San Luis Obispo, California; Norwood, Massachusetts and Ottawa, Canada. For more information, visit http://www.pt.com/ or contact . Forward Looking Statements The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for certain forward-looking statements. This press release contains forward-looking statements, which reflect the Company's current views with respect to future events and financial performance, within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 and is subject to the safe harbor provisions of those Sections. These forward-looking statements are subject to various risks and uncertainties and the Company's actual results could differ materially from those discussed in the forward-looking statements. These risks and uncertainties include, among other factors, general business and economic conditions, rapid technological changes accompanied by frequent new product introductions, competitive pressures, dependence on key customers, the attainment of design wins, fluctuations in quarterly and annual results, the reliance on a limited number of third party suppliers, limitations of the Company's manufacturing arrangements, the protection of the Company's proprietary technology, the dependence on key personnel, potential delays associated with the purchase and implementation of an enterprise-wide software system and potential impairments of investments. These statements should be read in conjunction with the audited Consolidated Financial Statements, the Notes thereto and Management's Discussion and Analysis of Financial Condition and Results of Operations of the Company as of December 31, 2003, as reported in its Annual Report on Form 10-K, and other documents as filed with the Securities and Exchange Commission. NOTE TO EDITORS: Brand or product names are registered trademarks or trademarks of their respective holders. DATASOURCE: Performance Technologies CONTACT: Press Inquiries - Amy Farrell of Performance Technologies, +1-805-783-6047, Web site: http://www.pt.com/ http://www.spraycool.com/

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