Apple iMac "Core 2 Duo" 2.66 20-Inch (Early 2008) , 320 GB Hard Drive, 2 GB RAM - Imagine41
Memory Upgrades for Apple iMac 2008 - Up to 6GB
Apple iMac 20-Inch Core 2 Duo 2.66 (Early 2008), 500GB HD, 4GB RAM Yosemite OS. | eBay
Timetec 8GB KIT(2x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 for Mac Book, Mac Book Pro, iMac, Mac Mini (Late 2008, Early/Mid/Late 2009, Mid 2010) SODIMM Memory MAC RAM Upgrade