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: 2048 Internal memory type: DDR2 Memory layout: 1 x 2048 CAS latency: 5 Memory voltage: 1.8 V Registered: Y Memory bus: 72 Lead plating: Gold Module configuration: 256M X 72 Rack mounting: 240-pin DIMM Memory ranking: Dual Rank