Corsair CMSX8GX3M1A1600C10 Vengeance 8GB (1x8GB) DDR3 1600 MHz (PC3 12800) Laptop Memory- 1.5V 8 GB (1x8 GB) DDR3 SODIMM for 2G Intel Core i5 and i7 notebooks 1600MHz 10-10-10-27 latency 1.5 volts Auto-overclocking (no bios configuration required) Pin Out: 204 Pin Memory Type: DDR3; Speed: 1600MHz