CMS 4GB (2X2GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac (Mid 2007) Pc2-5300 - A37 at Amazon.com
parts-quick 6GB (4GB + 2GB) Memory for Apple MacBook Pro, iMac 2007 2008 Compatible PC2-5300 667MHz DDR2 SODIMM at Amazon.com
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 Memory Upgrade (2007 Model) - YouTube
How to Upgrade iMac RAM (20" and 24" Aluminum): EveryMac.com
iMac | 2.4 GHz Core 2 Duo | 24 Inch | Aluminium - Techable.com
The infamous 2007 iMac on Catalina | MacRumors Forums
iMAC 24" Mid 2007 Intel Core 2 Duo 2.8GHz 4GB Ram 500 HD Radeon 2600 (A1225) | eBay
Install memory in an iMac - Apple Support
A-Tech for Apple 4GB Kit 2X 2GB PC2-5300 667MHz Mac Mini iMac Late 2006 Late 2008 Mid 2007 A1208 MA589LL A1207 MA456LL A1200 MB138LL/A A1176 MB139LL/A Memory RAM at Amazon.com
Install memory in an iMac - Apple Support
iMac 2.4 GHz (24-inch, Mid 2007) — Keane Mac Repair
Apple iMac 20-inch Mid 2007 Core 2 Duo Processor 2.4 GHz 250GB HDD 3GB RAM | eBay