Stable Reliable Compatible Value Select memory is tested to Corsair&s tough standards & is stable reliable & compatible with virtually all major notebook & netbook PCs Backed by a limited lifetime warranty Memory Memory layout (modules x size) 1 x 4 GB Internal memory 4 GB Component for PCserver Memory form factor 204-pin SO-DIMM CAS latency 9 Memory voltage 135 V Memory clock speed 1333 MHz Internal memory type DDR3 Power Memory voltage 135 V