EXHIBIT 21 -- SUBSIDIARIES OF REGISTRANT Subsidiaries of the Company, all of which are wholly-owned and are included in the consolidated financial statements, are as follows: NAME STATE OR COUNTRY OF INCORPORATION - -------------------------------------------------------------------------------- C.P. Power Products (Zhong Shan) Co., Ltd. People's Republic Of China Computer Products Asia-pacific Limited Hong Kong Computer Products (France) Sarl France Computer Products GmbH Germany Computer Products Power Conversion Limited England Heurikon Corporation Wisconsin Jeta Power Systems, Inc. California Power Products (Ireland), Ltd. Cayman Islands, B.W.I. Power Products, Ltd. Cayman Islands, B.W.I. Rtp Corp. Florida Rtp Foreign Sales Corporation U.S. Virgin Islands Stevens-Arnold, Inc. Massachusetts