MemoryMasters 6GB (4GB + 2GB Memory Upgrade Kit) Memory RAM for Apple iMac 2007 7,1 at Amazon.com
24-inch iMac: M1 chip, 8-core CPU 7-core GPU, 8GB, 256GB - MiTech - Miami University Technology Store
Apple iMac with Retina 5K display - all-in-one - Core i7 3.8 GHz - 8 GB - SSD 512 GB - LED 27" - US - MXWV2LL/A - All-in-One Computers - CDW.com
Apple iMac 20-inch Mid 2007 2GHz Intel Core 2 Duo (MA876LL) – UNICOM, Inc.
Apple iMac A1224 2007 Core 2 Duo T7700@2.4GHz 20" 2GB RAM 320GB BOOTS El Capitan | eBay
iMAC 20" mid 2007 w el Capitain, 6GB Ram, 320GB HDD /READY TO GO../good working! | eBay
How to upgrade the RAM on the 27-Inch iMac (2020) | AppleInsider
A-Tech for Apple 1GB DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook, MacBook Pro, iMac, Mac Mini - (Early/Mid/Late 2006, Mid/Late 2007, Early 2008, Early 2009) - Memory RAM Module at Amazon.com