Full Details on Amazon.com : http://www.amazon.com/gp/product/B006EWUPOO?tag=tsukuyomi-20

Corsair Vengeance 8GB (2x4GB) DDR3 1866 MHz (PC3 15000) Laptop Memory (CMSX8GX3M2A1866C10)

8GB 2x4GB DDR3 SODIMM kit for 2nd Generation Intel Core i5 and i7 notebooks
Speed 1866MHz
Timing 10-10-10-32
Pin Out 204 Pin Voltage 15V
Density 8GB 2x4GB Module Limited Lifetime Warranty