A-Tech for Apple 2GB DDR3 1067MHz / 1066MHz PC3-8500 SODIMM Memory RAM Module for MacBook, MacBook Pro, iMac, Mac Mini - (Late 2008, Early 2009, Mid 2009, Late 2009, Mid 2010) Models at Amazon.com
How to Install RAM in an iMac. Extra memory, or Random Access Memory (RAM) can be inserted or installed into the memory slots of… | Imac, Repair videos, Ram upgrade
8GB -2x4GB Memory Ram Upgrade 20" Apple iMac 9.1 2.66GHz Core 2 Duo Early 2009 | eBay
iMac (2009) RAM & Storage Upgrades
4B (1X4GB) RAM Memory for Apple iMac "Core 2 Duo" 3.06 21.5-Inch (Late 2009) A34 | eBay