4GB 1600MHz Low Voltage SODIMM.Number of pieces: One, Memory data width: X 64, Chip organization: X8, Depth: 512M.Unbuffered.1600MHz Low Voltage SODIMM.Comes with lifetime warranty.Signal processing: Unbuffered.RAM features: Single rank.Cas Latency 11.Data integrity check: Non-ECC.CAS latency: CL11.Form factor: SoDIMM.Memory speed: 1600 MHz.Memory voltage: 1.35 V.Number of pins: 204-pin.Kingston Branded Product