Full Details on Amazon.com : http://www.amazon.com/gp/product/B00AU5PLK4?tag=tsukuyomi-20
8GB DDR3 Memory Upgrade for Alienware M17x R4 Notebook PC3-12800S 204 pin 1600MHz Laptop SODIMM
8GB PC3-12800S DDR3 1600MHz 204 pin SODIMM for Alienware M17x R4 Notebook
Capacity 8GB
Speed PC3-12800 DDR3 1600MHz
Form Factor 204 pin SODIMM
Halogen Free ROHS Warranty Lifetime
