HP 2GB PC3-12800 (DDR3 1600MHz) SO-DIMM, 2 GB, 1 x 2 GB, DDR3, 1600 MHz, 204-pin SO-DIMM HP 2GB PC3-12800 (DDR3 1600MHz) SO-DIMM. Component for: Laptop, Internal memory: 2 GB, Memory layout (modules x size): 1 x 2 GB, Internal memory type: DDR3, Memory clock speed: 1600 MHz, Memory form factor: 204-pin SO-DIMM