Kingston the world's largest independent memory manufacturer has over 2 000 memory products. In today's performance driven environment memory upgrades provide an easy economical alternative to increase system performance. Every memory product Kingston offers is designed to help you get maximum performance at the best price to you.This memory module is designed for Compaq Deskpro EN 566 - 1000. Primary InformationRAM Type : DRAM RAM Technology : SDRAM RAM / Access Time : 7.5 Ns RAM Module Configuration : 64 x 64 RAM / Memory Speed : 133 MHz RAM Form Factor : DIMM 168-pin RAM / Storage Capacity : 512 MB Memory / Supply Voltage : 3.3 V Slot(s) Required : 1 x memory - DIMM 168-pin Data Width : 64 Bit Check Width : 0 Bit Data Integrity Check : non ECC designed for Compaq Deskpro EN 566 - 1000. Service&SupportService & Support Type : Limited lifetime warranty UNSPSC CodeUNSPSC Code : 32101602 Product IDUPC: 740617057362Manufacturer Part: KTC-EN133/512