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: 4096 Internal memory type: DDR2 Memory form factor: 200-pin SO-DIMM CAS latency: - Memory voltage: 0 ECC: - Registered: N Memory bus: 64 Lead plating: Gold Module configuration: 256M X 64 Compatibility: MB413G/B (Apple); MC322G/A (Apple) Rack mounting: 200-pin SODIMM