How to Upgrade Memory in a 27-inch iMac (Late 2012-2013) iMac13,2 and iMac14,2 - YouTube
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
Apple's new 'Assembled in USA' iMac a bear to upgrade, repair • The Register
Upgrade ram macbook pro late 2013 - stashokpad
A-Tech 8GB RAM for Apple MacBook Pro (Mid 2012), iMac (Late 2012, Early/Late 2013, Late 2014, Mid 2015), Mac Mini (Late 2012) | DDR3 1600MHz PC3-12800 SODIMM 204-Pin Memory Upgrade at Amazon.com
Install memory in an iMac - Apple Support
iMac 2013 Model Ram Upgrade - YouTube
How to upgrade RAM iMac late 2013 21.5inch - break & fix MOVIE - YouTube
Install memory in an iMac - Apple Support
16GB KIT 2X 8GB for Apple iMac 2.7GHz 21.5" Late 2013 2.93GHz 27" Late