Apple iMac 21.5-inch - 8GB RAM - 1TB HDD + 128GB SSD - 2.7Ghz Intel Core i5-4570R - ME086LL/A Late 2013 (Scratch and Dent) - Walmart.com
Install memory in an iMac - Apple Support
iMac 20" Mid 2007 Base Config vs. OS X El Capitan - YouTube
4GB 2 X 2GB DDR2 Memory for iMac 7,1 Mid 2007 20" inch 24" inch Intel Core 2 Duo 2.4GHz PC2-5300 667MHz 200 pin SODIMM (PARTS-QUICK) at Amazon.com
Memory Upgrades for Apple iMac 2007 - Up to 6GB
Install memory in an iMac - Apple Support
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
Apple iMac 7.1 (mid 2007) Intel Core 2 Duo @ 2.4ghz 2gb Ram 320 GB HDD Mac OS | eBay
install memory in iMac - mid 2007 model - YouTube
Apple iMac 24" M1 8C7C 8GB RAM 512GB SSD - Blue - Z14M-2002041465 - -
Apple iMac 2011 21.5” Intel i5 2.7 GHz 8GB RAM 1TB HD AMD 512 MB, Office, I Life | eBay
Apple iMac 24-inch September 2007 2.8GHz Intel Core 2 Duo (BTO/CTO) | eBay