This product is either discontinued or we cannot get that from suppliers.
Kingston Single Rank (KCP316SS8/4), FF SO-DIMM 204-pin, DDR3 SDRAM, 4 GB, 512 x 64, 1600 MHz, Non-ECC, Unbuffered, CL11.
Kingston memory is designed, manufactured and rigorously tested to meet the exact specifications of each brand name system. It's guaranteed to be compatible and backed by a lifetime warranty and legendary Kingston reliability.