Full Details from Amazon.com : http://www.amazon.com/gp/product/B004LCGUYI?tag=onigi-20
Komputerbay 4GB DDR2 667MHz PC2-5300 PC2-5400 DDR2 667 (200 PIN) SODIMM Laptop Memory
Komputerbay 4GB DDR2 667MHz PC2-5300 PC2-5400 DDR2 667 200 PIN SODIMM Laptop Memory
100 Compatible with Laptops
BRAND NEW 4GB PC2-5300 PC2-5400 DDR2 667 Mhz Supports Dual Channel
Compatible with LAPTOPS THAT SUPPORT DDR2 200PIN MEMORY
Lifetime Warranty