Power-One, Inc. (NASDAQ:PWER) announces that it has agreed to a license transfer from C&D Technologies, Inc. to Murata Manufacturing Company. The transfer of the license had been requested by Murata, as part of Murata's purchase of C&D's Power Electronics Division (PED). The sale was completed on August 31, 2007.

Under the terms of the license agreement, Murata will now succeed C&D as licensee, and will join the Z-Alliance?. Murata will manufacture Power-One's product line and actively promote the sale of Z-One compliant products.

?We are delighted to have Murata join the Z-Alliance? and be a licensee for the Z-One® digital power management system,? said Bill Yeates, Power-One's Chief Executive Officer. ?The acquisition of the PED group positions Murata as one of the leading DC/DC converter companies in the world, and their strong presence within the Asia/Pacific, Japanese, North America and Europe regions makes them a very powerful Z-Alliance partner.

?We are confident that our customers will welcome Murata as a respected and committed second-source addition to the Z-Alliance. Murata is a top quality and respected company. We continue to execute our strategy to provide our customers with the highest quality products in the market. This addition of a powerful Z-Alliance member and our recent 60-Amp ZY8160 product announcement, which provides triple the output power range of previous digital products, should continue to increase the adoption rate of our Z-One products. Our presence within this market is becoming increasingly powerful as we extend the reach of products developed as part of the Z-Alliance. Our products have been in the market now for over two years, while our competitors have yet to market any tangible products.?

Dr. William Bachrach, General Manager of PED, who will take on the role of President of Murata Power Solutions, commented, ?We are excited to continue our role as a member of the Z-Alliance, and now bring even stronger worldwide support for the adoption of Z-One products as Murata Power Solutions. Z-One capabilities for advanced power system configuration and control, combined with an easy to use graphical user interface, create an unbeatable technical proposition. Growing support for the Z-Alliance, along with our continued membership, create an unbeatable business proposition.?

About Power-One:

Power-One is a leading designer and manufacturer of power conversion products sold primarily to OEM customers in the telecommunications and server/storage markets; as well as data communications equipment manufacturers. Power-One's high-reliability products are also used in applications such as test equipment, high-end industrial applications, and alternative energy. Power-One, with headquarters in Camarillo, CA, has approximately 4,000 employees with manufacturing and/or R&D operations in the United States, Dominican Republic, Italy, Hungary, Switzerland, Slovakia, Ireland and China. For information on Power-One and its products, visit the company's Web site at www.power-one.com.

About Murata:

Based in Kyoto, Japan, Murata Manufacturing Company Ltd is one of the world's leading providers of ceramic based components, sensors, and integrated electronic modules including DC/DC converters and AC/DC power supplies. Founded in 1950, the company has over 26,000 employees worldwide, and over $4.9 billion US in consolidated annual sales (as of March 31, 2007). Murata's Power supply division is one of the world's leading providers of AC/DC and DC/DC power solutions, focusing primarily on the consumer, communications, computing and industrial markets worldwide. Everywhere in the world, wherever you can reach, Murata's electronic components are always at work. For more information about Murata, visit http://www.murata.com.

This press release contains forward-looking statements, which are made pursuant to the Safe-Harbor provisions of the Private Securities Litigation Reform Act of 1995. Words such as ?forecast,? ?expect,? ?anticipate,? ?will,? ?looking,? ?believe? and similar expressions reflecting something other than historical fact are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. Forward-looking statements are not guarantees, but rather are predictions of and make certain assumptions regarding anticipated future results. Achievement of actual results is dependent upon and will involve a variety of risks and uncertainties that could cause actual results to differ materially from assumptions and predictions. Such risks and uncertainties include, but are not limited to,; the possibility that the market for the sale of certain products and services may not develop as expected; Power-One's ability to manage its international operations; the risk that the development of products and services may not proceed as planned; adverse general domestic and international economic conditions including interest rate and currency exchange rate fluctuations; the impact of competitive products or technologies and competitive pricing pressures; the Company's ability to secure, maintain, defend, enforce, and protect claimed intellectual property rights, including patents issued and patents applied for; and other risks that are described from time to time in Power-One's Securities and Exchange Commission reports. See ?Risk Factors? in the Company's reports on file with the Securities and Exchange Commission, to specifically include the Company's Form 10-K for fiscal 2006, for greater detail regarding factors that constitute cautionary statements with respect to such forward-looking statements, including certain risks and uncertainties that could cause actual results to differ materially from those in such forward-looking statements. Readers of this information are cautioned not to place undue reliance on these forward-looking statements, since, while we believe the assumptions on which the forward-looking statements are based are reasonable, there can be no assurance that these forward-looking statements will prove to be accurate. This cautionary statement is applicable to all forward-looking statements contained in these materials. Except as required by law, the Company undertakes no obligation to update, amend or clarify forward-looking statements, whether as a result of new information, future events or otherwise.

Power-One, Inc.
Dave Hage
Executive Vice President
805-987-8741
or
Avalon Investor Relations
Kristyn Hutzell
512-514-6046