Memory Upgrades for iMac 27-Inch (2012 - Mid 2015)
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Upgrading RAM On The New 27-inch iMac Is Easy, Here's How | Cult of Mac
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
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
How to Upgrade iMac RAM: 2012-2022: EveryMac.com
Apple's 27" iMac Late 2012 model. How to upgrade the ram to 16GB - YouTube
Install memory in an iMac - Apple Support
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Install memory in an iMac - Apple Support
How to upgrade iMac (2020) RAM and save up to $2000 - 9to5Mac
MacBook Pro 13" Unibody A1278 (Mid 2012) RAM Upgrade Kit