Full Details on Amazon.com : http://www.amazon.com/gp/product/B00IOVYRZ6?tag=tsukuyomi-20
4GB Memory Upgrade for Lenovo Essential G500 G505 G510 DDR3L 1600MHz PC3L-12800 SODIMM RAM
Capacity 4GB
Form Factor 204 pin SODIMM
Speed PC3L-12800 1600MHz
135v Low Voltage Low Power
Halogen Free ROHS Warranty Lifetime
