8GB Kit (2x4GB) PC3-8500 DDR3 1067MHz 1066MHz RAM Upgrade for Late 2008, Early/Mid/Late 2009, Mid 2010 MacBook, MacBook Pro, iMac, Mac Mini at Amazon .com
Axiom 4GB DDR3 SDRAM Memory Module - 4GB (2 x 2GB) - 1066MHz DDR3-1066/PC3-8500 - DDR3 SDRAM SoDIMM at Amazon.com