HMT451S6BFR8A-PB - SK Hynix 1x 4GB DDR3-1600 SODIMM PC3L-12800S Single Rank x8 Module
4GB DDR3 RAM
SK Hynix HMT451S6DFR8A 8GB (2x4GB) 1Rx8 DDR3 SO-DIMM PC3L-12800S 1600MHz 204-Pin Non-ECC CL11 1.35V Laptop Memory 2-Piece Kit HMT451S6DFR8A-PB for Other Laptop Systems at Amazon.com
Hynix 4GB PC3L-12800S DDR3-1600Mhz 204pin Laptop SO DIMM Memory HMT451 – North Bay Tec