iMac (27-inch, Late 2012) - Technical Specifications
How to Upgrade iMac RAM: 2012-2022: EveryMac.com
Install memory in an iMac - Apple Support
iMac (Late 2012) | Low End Mac
A-Tech 8GB Kit (2x4GB) RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
APPLE IMAC LATE 2012 27" INCH i7 3.4GHz QUAD 16GB RAM 1 TB HD | eBay
27" iMac Desktop 2012 3TB hard drive 16mb Ram 3.4ghz Core i7 Great Condition | eBay
Apple iMac 27" Late 2012 Intel Core i5 MD095LL/A|$ 250.00
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
2012 21.5-Inch Apple iMac Review: Slim, Sleek, And Stylish, But Far From Shallow | TechCrunch
Install memory in an iMac - Apple Support
Apple 27" iMac Desktop Computer (Intel Core i7, 16GB RAM, 1TB HDD, Late 2012) (Used - Scratches) - Walmart.com
iMac (27-inch, Late 2012) - Technical Specifications