4GB DDR3 1600MHz SODIMM 2Rx8 Non-ECC 1.35V at Amazon.com
Lenovo 4GB PC3-12800 DDR3L-1600MHz SODIMM Memory at Amazon.com
Samsung ram Memory 4GB (1 x 4GB) DDR3 PC3-12800,1600MHz, 204 PIN, SODIMM for laptops at Amazon.com
Amazon.com: 4GB DDR3 1600MHz PC3-12800 CL11 SODIMM 204pin Dual Rank EBJ41UF8BDU0-GN-F - HOT ITEM THIS MONTH!!! : Electronics
Hynix original 16GB (2 x 8GB), 204-pin SODIMM, DDR3 PC3L-12800, 1600MHz memory module at Amazon.com
ADATA 8GB DDR3L/DDR3 1600MHz 204-Pin SODIMM Laptop/Notebook Memory RAM Low Voltage (ADDS1600W8G11-R) at Amazon.com
Amazon.com: Samsung Original 8GB (1 x 8GB) 204-pin SODIMM, DDR3 PC3L-12800, 1600MHz ram Memory Module for laptops (M471B1G73EB0-YK0) : Electronics
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
Samsung 4GB DDR3 PC3-12800 1600MHz 204-Pin SODIMM Laptop Memory Module RAM. Model M471B5273DH0-CK0 at Amazon.com
Kingston Value (KVR16N11S8/4) RAM 4GB 1600MHz PC3-12800 DDR3 Non-ECC CL11 DIMM SR x8 Desktop Memory at Amazon.com
OWC 8GB PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Module Upgrade Compatible with iMac, Mac Mini, and MacBook Pro (OWC1600DDR3S8GB) at Amazon .com