HP E555 SK Hynix 8GB (2x4GB) PC3L-12800S Memory RAM SO-DIMM HMT451S6BFR8A-PB
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
Mac-Axx™ 8GB[2 x 4GB] DDR3L-SK hynix, 1Rx8 PC3L-12800S, 1600 MHz, 204 PIN SO-DIMM, CL-11, 1.35V, UN-BUFFERED(Non-ECC) Memory/Ram Module Compatible with AIO/Laptop/Mini PC/Notebook[Pack of 2] | Dealsmagnet.com
MacBook Pro A1297 Micron 8GB 2Rx8 Memory RAM PC3L-12800S MT16KTS1G64HZ-1G6E1