Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Apple iMac 27-inch (Late 2012) - Review 2012 - PCMag UK
Apple's 2012 iMac: Ready for its close-up (pictures) - CNET
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
64GB 32GB 16GB RAM UPGRADE for Apple iMac 27" 2012 2013 2014 2015 2017 2019 2020 | eBay
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
Install memory in an iMac - Apple Support
Apple iMac (Late 2012) review (21.5- and 27-inch) | Macworld
Install memory in an iMac - Apple Support
Install memory in an iMac - Apple Support
How to Upgrade Memory in a 27-inch iMac (Late 2012-2013) iMac13,2 and iMac14,2 - YouTube
Can you upgrade the RAM in the 27-inch iMac? | iMore