Kembona Ddr3 4gb Ram Desktop Memory 1333mhz 4gb / 1333 4g / Dual Channel For A-m-d And Intel Pc Computer - Rams - AliExpress
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
8GB (2 X 4GB) DDR3 1066MHz PC3-8500 240-pin Memory RAM DIMM for Desktop PC by NEMIX RAM at Amazon.com