parts-quick 6GB Kit (4GB + 2GB) Memory for iMac 2008 Apple MacBook 2009 PC2-6400 800MHz DDR2 SODIMM
20'' Apple iMac A1224 2008 Core 2 Duo @ 2.66GHz 4GB RAM 320GB HDD MB324LL/A | eBay
A-Tech for Apple 6GB Kit (1x2GB + 1x4GB) DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook (Late 2007, Early 2008, Early 2009), MacBook Pro (Mid 2007, Early 2008), iMac (Mid 2007) - Memory RAM Upgrade at Amazon.com
iMac Early 2008 Intel Core 2 Duo @ 2.4 GHz 4GB RAM 250GB HDD MacOS EL Capitan | eBay