Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
Timetec Hynix IC DDR3L 1600MHz PC3L-12800 SODIMM Compatible with Apple 2011, 2012, 2013, 2014 MacBook Pro, iMac, Mac mini (16GB Kit(2x8GB)) Laptop Memory - Newegg.com
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
Apple iMac (Late 2012) review (21.5- and 27-inch) | Macworld
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
Which RAM to buy for iMac 27-inch Late 2012? | MacRumors Forums
How to Upgrade/Install Memory in a 21.5-inch iMac (Late 2012– Mid 2014) iMac14,1 iMac14,3 - YouTube
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
A First Look At The 2012 21.5-inch iMac, And How It Compares To Generations Past | TechCrunch
Apple's 27" iMac Late 2012 model. How to upgrade the ram to 16GB - YouTube
4GB PC3-12800 RAM for Apple iMac Late 2012 - 27 Inch MD096LL/A Memory Upgrade Module
Apple 21.5" Pre-Owned iMac Desktop Intel Core i5 2.7GHz 8GB Memory 1TB HDD (2012) Silver MD093LL/A - Best Buy