iMac | 2.4 GHz Core 2 Duo | 24 Inch | Aluminium - Techable.com
Memory Upgrades for Apple iMac 2007 - Up to 6GB
Apple iMac 2007 A1224 MA877LL/A 20" C2D 2.4GHz 4GB RAM 320GB HD DVDRW El Capitan 885909150335 | eBay
2007 Apple iMac 2.4 GHz Core 2 Duo 24-inch 4 GB RAM 2 TB - Office + Yosemite | eBay
CMS 4GB (2X2GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac (Mid 2007) Pc2-5300 - A37 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
Review: Apple's new 24-inch iMac (aluminum) | AppleInsider