8GB 2x 4GB PC3-8500 Apple MacBook Pro iMac Mac MINI Mid 2009 mid 2010 MEMORY RAM | eBay
Memory RAM 1x 2GB Apple iMac Early 2009 DDR3 1066MHz SO-DIMM | E-OWC8566DDR3S2GB | APPLE \ MEMORY FOR APPLE \ OWC \ APPLE IMAC \ iMac Early 2009 \ iMac 24'' (Early
Timetec Hynix IC 16GB KIT(4x4GB) Compatible for Apple Late 2009 iMac 21.5-inch / 27-inch DDR3 1067MHz/1066MHz PC3-8500 CL7 204 Pin 1.5V SODIMM RAM Upgrade for iMac 10,1 iMac 11,1 (16GB KIT(4x4GB)) - Walmart.com
Install memory in an iMac - Apple Support
How do the "Late 2009" Aluminum iMac models compare to the "Early 2009" models that preceded them?: EveryMac.com
iMac | 2.66 GHz Core 2 Duo | 24 Inch | Early 2009 - Techable.com
Apple iMac 2009 6GB 2+4GB DDR3 1066MHz PC3-8500 204-Pin