Kingston Technology is the world's independent memory leader and is well-known for providing high quality memory products at an attractive price. Kingston ValueRAM is your best source for industry-standard memory to maximise the performance and productivity of your system. Built with A-grade components only, Kingston ValueRAM memory modules come with a lifetime warranty. Memory clock speed: 667 Internal memory: 4096 Internal memory type: DDR2 Memory layout: 2 x 2048 CAS latency: 5 Memory voltage: 1.8 Check width: 8 ECC: Y Registered: N Memory bus: 72 Lead plating: Gold Module configuration: 256M X 72 Bus clock rate: 667