Origin Storage 4GB DDR4 2666MHz SODIMM 1Rx16 Non-ECC 1.2V. Component for: Laptop, Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR4, Memory clock speed: 2400 MHz, Memory form factor: 260-pin SO-DIMM, CAS latency: 17