Corsair CMSO4GX3M1C1333C9 4GB (1x4GB) 1333MHz PC-10600 204-Pin DDR3 SODIMM Laptop Memory 1.35V 4GB Module (1x4GB) DDR3L 1333MHz SODIMM 1333MHz 9-9-9-24 latency Pin Out: 204 Pin Voltage: 1.35V