Full Details on Amazon.com : http://www.amazon.com/gp/product/B00A8J2OUM?tag=tsukuyomi-20
Hynix 4GB PC3-12800 DDR3 1600MHz non-ECC Unbuffered HMT351S6CFR8C-PB
Part Number HMT325S6BFR8C-H9N0 Manufacturer Hynix Orig 256MX8 8C DescriptionDDR3 SO-DIMM 204 pins CategoryDDR3 PC1333 SO-DIMM 256Mx64