Silicon Power 4GB (1x4GB) DDR3-1600 PC3-12800 204-Pin SO-DIMM Notebook Memory Not a kit (Single) SP004GBSTU160V02 Designed to be highly compatible with different models/brands of notebooks and motherboards using AMD and Intel platforms Capacity: 4GB (1x4GB) Speed: 1600Mhz Timing: CL 9 204PIN Unbuffered SODIMM Voltage: 1.5v Non-ECC Lifetime Warranty