Memory RAM 2x 4GB Apple - iMac 24'' Early 2009 DDR3 1066MHz SO-DIMM | MC016G/A ESUS IT
Timetec 16GB KIT(4x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 Dual Rank for iMac (Late 2009 21.5-inch / 27-inch) SODIMM Memory MAC RAM Upgrade for iMac 10,1 and iMac 11,1 at Amazon.com
How to Upgrade the RAM in Your iMac
Buy Timetec 8GB KIT2x4GB Compatible for Apple DDR3 1067MHz 1066MHz PC3-8500 CL7 for Mac Book, Mac Book Pro, iMac, Mac Mini Late 2008, EarlyMidLate 2009, Mid 2010 SODIMM Memory MAC RAM Upgrade