A-Tech 32GB Kit (4x8GB) RAM for Apple iMac (Late 2012, Late 2013, Late 2014, Mid 2015) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Apple iMac A1419 27" Desktop - MD095LL/A (October, 2012) for sale online | eBay
DDR3 1600MHZ PC3-12800 SODIMM for Apple iMac 2012 - 2013 (13,2 14,2)
NEMIX RAM 16GB Kit (2x8GB Upgrade) DDR3-1600 SODIMM PC3-12800 for Apple MacBook Pro Mid 2012 / iMac Late 2012 / iMac 2013, Late 2014, Mid 2015, Mac Mini Late 2012 at Amazon.com
Apple's 27" iMac Late 2012 model. How to upgrade the ram to 16GB - YouTube
27 inch iMac with Retina 5k Display 2019 3.7GHz i5 4TB SSD 128GB RAM | Refurbished | Techable
Apple iMac 21.5" Late 2012 2.7GHz i5 3rd Gen 8GB RAM 1TB HDD NVIDIA GT 640M | eBay
A First Look At The 2012 21.5-inch iMac, And How It Compares To Generations Past | TechCrunch
Harder, better, faster, stronger: A review of the 27-inch iMac | Ars Technica
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3L 1600MHz for Mac Book Pro(Early/Late 2011,Mid 2012), iMac(Mid 2011,Late 2012,Early/Late 2013,Late 2014,Mid 2015), Mac Mini(Mid 2011,Late 2012) MAC RAM at Amazon.com