Type-C Aluminum Monitor Stand Hub for iMac - Satechi
Apple iMac A1418 21.5" AiO Computer i5-3330S (Late-2012) -
New CPUs, faster Wi-Fi, same flaws: Apple's 2013 iMac reviewed | Ars Technica
HyperDrive 5-in-1 – USB-C Hub pro iMac
Amazon.com: Hagibis iMac Hub with 1000Mbps RJ45, USB C 3.1, USB 3.0 Ports and SD/Micro SD Card Reader, USB-C Clamp Hub USB C Docking Station for 2021 iMac 24 inch (with RJ45) :