G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model (F3-12800CL9D-8GBRL) at Amazon.com
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
G.Skill Ripjaws X Series 16 GB (2 x 8 GB) 240-Pin SDRAM (PC3-12800) DDR3 1600 CL10-10-10-30 1.50V Dual Channel Desktop Memory Model F3-12800CL10D-16GBXL at Amazon.com
JUHOR DDR3 Ram 16GB (8GBx2) 1600MHz PC3-12800 240-pin CL11 1.5V Non-ECC Unbuffered UDIMM Desktop Dual Channel SDRAM PC Computer Memory Module with Heatsink at Amazon.com
IBM 00D4955 4GB DDR3 SDRAM Memory Modules - 4 GB (1 x 4 GB) - DDR3 SDRAM - 1600 MHz DDR3-1600/PC3-12800 - 1.50 V - ECC - Unbuffered - 240-pin - DIMM 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
Samsung 4GB DDR3 PC3-12800 1600MHz 204-Pin SODIMM Laptop Memory Module RAM. Model M471B5273DH0-CK0 at Amazon.com