iMac RAM for Model 13.2 to 15.1| DDR3-1600MHz | 8GBx4 | MacMemory.com
How To Upgrade RAM in a Mac | Macworld
Apple's 27" iMac Late 2012 model. How to upgrade the ram to 16GB - YouTube
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
iMac RAM for Model 13.2 to 15.1| DDR3-1600MHz | 4GBx2 | MacMemory.com
How to Upgrade/Install Memory in a 21.5-inch iMac (Late 2012– Mid 2014) iMac14,1 iMac14,3 - YouTube
Apple's 2012 iMac: Ready for its close-up (pictures) - CNET
Install memory in an iMac - Apple Support
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
OWC 8GB (2 x 4GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac, 2011-12 Mac Mini, and 2011-2012 MacBook Pro (Non-Retina Display) Models (OWC1600DDR3S08S) at Amazon.com
2012 2013 2014 Apple Imac 5k 27 Inch Memory Ram 4gb 8gb 16gb 32gb Ddr3 1600 - Rams - AliExpress