Late 2012/ 2013/2014 & Early 2015 iMac Retina 5k – SimplyMac SG
Memory upgrade: Apple iMac 2012/2013/2014 (Howto)
Install memory in an iMac - Apple Support
Upgrade RAM Apple iMac 21.5 slim A1418
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
How to upgrade RAM iMac late 2013 21.5inch - break & fix MOVIE - YouTube
Nuovi iMac da 27" per cambiare la RAM c'è uno sportello - Melablog
Installare la memoria in un iMac - Supporto Apple (IT)
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013