Corsair Mac Memory SODIMM 8GB (2x4GB) DDR3 1066MHz CL7 Memory for Mac Systems, Apple Qualified - Black- Buy Online in Costa Rica at Desertcart - 48649546.
CORSAIR 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1066 (PC3 8500) Memory for Apple Model CMSA8GX3M2A1066C7 - Newegg.com
CORSAIR 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1333 (PC3 10600) Memory for Apple Model CMSA8GX3M2A1333C9 - Newegg.com
Corsair Mac Memory - DDR3 - 8 GB : 2 x 4 GB - SO-DIMM 204-pin - 1333 MHz / PC3-10666 - CL9 - 1.5 V - unbuffered - non-ECC - for Apple iMac; MacBook (CMSA8GX3M2A1333C9) at TigerDirect.com