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: 667 Internal memory: 16384 Internal memory type: DRAM Memory form factor: 240-pin DIMM CAS latency: 5 Memory voltage: 1.8 V Registered: Y Memory bus: 72 Lead plating: Gold Module configuration: 1024M X 72 Compatibility: 408855-B21 (HP); 495605-B21 (HP); EV285AA (HP) Rack mounting: 240-pin DIMM