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
SK hynix 8GB 2Rx8 PC3L-12800S-11-13-F3 (HMT41GS6BFR8APB) | eBay
863492-001 / HMT41GS6DFR8A-PB Memory - 8GB 2Rx8 PC3L-12800S-11-13-F3 at Amazon.com