Apple iMac Late 2012 21.5-inch 2.7 GHz Core i5 Desktop DDR3 RAM Memory | Kingston
How to Upgrade/Install Memory in a 21.5-inch iMac (Late 2012– Mid 2014) iMac14,1 iMac14,3 - YouTube
Adamanta 16GB (2x8GB) Apple Memory Upgrade DDR3L 1600MHz SODIMM Compatible for iMac (Mid 2011, Late 2012, Early/Late 2013, Late 2014, Mid 2015), MacBook Pro (Early/Late 2011, Mid 2012), Mac Mini at Amazon.com
16GB -2x8GB Memory Ram Upgrade for 27" Apple iMac-13.2 Core i5 2.9GHz Late 2012 | eBay
Install memory in an iMac - Apple Support
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
Install memory in an iMac - Apple Support
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Apple iMac 27" - Late 2012 Reviews, Pros and Cons | TechSpot
Install memory in an iMac - Apple Support
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 iMac review (2012) | Engadget
CMS 8GB (2X4GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with Apple®
Apple's 27" iMac Late 2012 model. How to upgrade the ram to 16GB - YouTube
Review: 21.5-inch 2012 iMac takes two steps forward, one step back | Ars Technica
A-Tech 32GB Kit (4x8GB) RAM for Apple iMac (Late 2012, Late 2013, Late 2014, Mid 2015) | DDR3 1600MHz SODIMM PC3-12800 204-Pin SO-DIMM Max Memory Upgrade at Amazon.com
Late 2012 iMac becomes vintage/obsolete this month, but is eligible for pilot repair scheme - 9to5Mac
Apple iMac 21.5" Late 2012 Intel Core i5 2.90 GHz 1TB HDD 8GB RAM EMC 2544 A1418 | eBay
Used 2012 Apple iMac 27" Core i5 3.2GHz 8GB RAM 1TB HDD MD096LL/A - Walmart.com
Memory upgrade: Apple iMac 2012/2013/2014 (Howto)
Install memory in an iMac - Apple Support
Teardown of New 21.5-inch iMac Reveals Glued Down LCD and Dual Microphones - MacRumors