How To Upgrade RAM on the Apple iMac 2012 - 2013 RAM Upgrade - 21.5 inch model - YouTube
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
How to upgrade iMac (2020) RAM and save up to $2000 - 9to5Mac
Apple's 27" iMac Late 2012 model. How to upgrade the ram to 16GB - YouTube
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
Harder, better, faster, stronger: A review of the 27-inch iMac | Ars Technica
How to Upgrade iMac RAM: 2012-2022: EveryMac.com
Install memory in an iMac - Apple Support
CMS 32GB (4X8GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Retina 5K 27-Inch (Late 2014) Core I5/I7 - A6 at Amazon.com
How to Upgrade/Install Memory in a 21.5-inch iMac (Late 2012– Mid 2014) iMac14,1 iMac14,3 - YouTube
Install memory in an iMac - Apple Support
Can you upgrade the RAM in the 27-inch iMac? | iMore
Upgrading RAM On The New 27-inch iMac Is Easy, Here's How | Cult of Mac
How to Upgrade RAM on MacBook Pro, iMac & More | AVG
Install memory in an iMac - Apple Support
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
iMac Intel 21.5" EMC 2544 Repair - iFixit
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
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