CONNER PERIPHERALS, INC. EXHIBIT 21.1 Registered Entities CORPORATIONS REGISTERED OWNER(S) - ------------ ------------------- Conner Peripherals, Inc. (CPI) N/A Conner Peripherals (U.K.) Limited (CPUK) CPI Conner Peripherals GmbH (GMBH) CPI Conner Peripherals Singapore, Ltd. (in Cayman Islands) (CPS) CPI Conner Peripherals Pte. Ltd. (in Singapore) (CPPL) CPS Conner Peripherals Malaysia Sdn. Bhd. (CPM) CPPL Conner Finance Limited (in Cayman Islands) CPM Conner Peripherals K.K. (KK) CPI Conner Peripherals Europe S.p.A. (CPE) CPI Conner Peripherals France S.a.r.l. (CPF) CPI Conner Peripherals (U.K.) Sales Limited CPI Conner Peripherals Korea, Ltd. (CPK) CPI Conner Peripherals (Hong Kong) Limited (CPHK) CPI Conner Peripherals China Holding Company (CPCHC) CPS/CPHK Conner Shenzhen Peripherals Co. Ltd. CPCHC/Shenzhen CPC Conner Technology International Limited CPI Archive (Singapore) Pte. Ltd. (in Singapore) CPS Archive Europe Ltd. (AEL) CPI Archive U.K. Ltd. AEL Archive France S.a.r.l. CPI Optimem, Inc. CPI/Xerox* Archive Peripherals Asia Pacific Pte. Ltd. (APA) (in Singapore) CPI Arcada Holdings, Inc. (AHI) CPI* Arcada Software, Inc. AHI BRANCHES - -------- Conner Peripherals Pte. Ltd., Taiwan Branch (CPT) CPPL Archive Peripherals Asia Pacific Pte. Ltd., Taiwan Branch APA * - Minority interest held by certain individuals.