New 21.5-inch iMac least repairable yet due to lack of RAM, hard drive upgradability - 9to5Mac
2017 21.5-inch 4K iMac memory upgrade kit includes 32GB of RAM, tools to take it apart | AppleInsider
Teardown of new 21.5-inch iMac surprisingly reveals user-upgradable RAM, modular CPU - 9to5Mac
Apple iMac 21.5" A1418 late 2012 (EMC 2544) All In One - 2130174 | furbify
Buy Used & Refurbished Apple iMac 21.5-inch (Mid-2014) 1.4GHz Core i5 500GB HDD 16GB RAM MF883LL/A - iMac
Apple iMac 21.5" All-in-One Desktop Computer i3 3.07GHz 4GB Ram 500GB HDD Mac OS High Sierra MC508LL/A w/ Keyboard & Mouse
iMac (21.5-inch, Late 2013) - Technical Specifications
Apple iMac 21,5", Intel Core i3 con 3,06 GHz, 500 GB HDD, 4 GB di RAM, Full HD, All-in-one, senza mouse e tastiera, modello di uso quotidiano.(Ricondizionato) : Amazon.it: Informatica