DDR3 4GB Desktop Memory+Cooling Vest 2RX8 1600Mhz PC3-12800U 240Pins 1.5V DIMM Ram for AMD Motherboard - Walmart.com
OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com