Silicon Power Hynix IC Compatible for Apple DDR3 DDR3L 16GB (2 x 8GB) RAM 1600MHz (PC3 12800) 204 pin CL11 1.35V Non ECC Unbuffered SODIMM Laptop Notebook Memory RAM Module Upgrade at Amazon.com
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Samsung 4GB DDR3 PC3-12800 1600MHz 204-Pin SODIMM Laptop Memory Module RAM. Model M471B5273DH0-CK0 at Amazon.com
DUOMEIQI Pc3-10600 ddr3 ram 8GB (2 X 4GB) 1333Mhz ddr3 Sdram 2Rx8 Pc3 10600s Sodimm Pc3 10600 ddr3-1333 Pc3-10600S 204-Pin CL9 1.5V Non-Ecc Unbuffered for Laptop at Amazon.com