Kingston Technology is the world?s independent memory leader and is well-known for providing high quality memory products at an attractive price. System Specific memory modules are designed and tested in the relevant systems prior to release; and they are guaranteed to be 100% compatible with your system. All Kingston System Specific memory come with a lifetime warranty. Memory clock speed: 800 Internal memory: 2048 Internal memory type: DDR2 Memory form factor: 200-pin SO-DIMM CAS latency: 6 Memory voltage: 1.8 V Registered: N Memory bus: 64 Module configuration: 256M X 64 Compatibility: 451400-001 (HP); 480861-001 (HP); 482169-001 (HP); 482169-002 (HP); 482169-003 (HP); 482169-004 (HP); 484268-002 (HP); 484381-001 (HP); 485033-004 (HP); 493195-001 (HP); 497693-001 (HP); 506061-001 (HP); 506933-001 (HP); 5189-2822 (HP); 536428-001 (HP); 598858-001 (HP); GV576AA (HP); KQ436-69006 (HP); KT293AA (HP); KT293ET (HP) Rack mounting: 200-pin SODIMM