I got a FREE 2013 iMac 21.5 with internal upgrades including Samsung evo ssd and 16gigs of ram. Then used open legacy patcher to install Mac OS Venture 13.5 beta. : r/osx
Geheugen installeren in een iMac - Apple Support (NL)
Install memory in an iMac - Apple Support
iMac 21.5-inch Late 2013 8GB RAM 512GB SSD - MacRepair | MacBook - iMac reparatie en verkoop
Apple iMac, 21.5" 2013, i5 2.9GHz, 16GB RAM, 1TB HDD | The Renewed Store
2012 21.5-Inch Apple iMac Review: Slim, Sleek, And Stylish, But Far From Shallow | TechCrunch
Memory Upgrades for iMac 21.5-Inch 2012 - Late 2013
How to Upgrade iMac RAM: 2012-2022: EveryMac.com
New CPUs, faster Wi-Fi, same flaws: Apple's 2013 iMac reviewed | Ars Technica
iMac RAM upgrade: Here's an affordable way to improve multitasking - CNET
21.5 Imac 2013 Ram Upgrade on Sale, SAVE 42% - piv-phuket.com