Samsung Laptop Memory 4GB 1Rx8PC3L-12800S-11-13-B4 M471B5173QH0-YK0 at Amazon.com
Kuesuny 8GB Kit (2 x 4GB) DDR3-1600 SODIMM, DDR3L PC3-12800 CL11 Non ECC Unbuffered 204-Pin 1.35V/1.5V 2RX8 SO-DIMM Notebook Laptop RAM Memory at Amazon.com
Case of 100, DUOMEIQI 4GB 2RX8 PC3L-12800S DDR3L 1600MHz SO-DIMM 204 Pin 1.35v / 1.5v CL11 Non-ECC Unbuffered Notebook Memory Laptop RAM Module Compatible with Intel AMD and Mac System at Amazon.com