Memory RAM Upgrade for Apple iMac 20-inch Early 2009 4GB DDR3 SODIMM | eBay
PC Galore | iMac 27" Core 2 Duo 3.33Ghz 8GB Ram 1TB HDD (Late 2009)
iMac (2009) RAM & Storage Upgrades
Amazon.co.jp: A-Tech for Apple 8GB Memory Ram Kit 2x4GB PC3-8500 1066MHz Macbook Late 2008 2009 Mid 2010 Macbook Pro Late 2008 Early 2009 Mid 2009 Mid 2010 iMac Early Mid Late 2009