8GB (2 X 4GB) DDR3 1600MHz PC3-12800 240-pin Memory RAM DIMM Kit for Desktop PC by NEMIX RAM 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
8GB DDR3L Low Voltage 1600 MHz (PC3-12800) CL11 SODIMM Memory - Notebook RAM - VisionTek | Dell USA
DDR3 Desktop Memory 4G/8G DDR3 1600MHZ 1.5V 240Pins Desktop Universal Gaming Memory for PC (4GB RAM) - Walmart.com