Sabrent Premium 4-Port USB 3.0 Hub for iMac (2012 and later)
Sabrent 4-Port USB 3.0 Hub For iMac Slim Unibody (HB-IMCU) | HB-IMCU
USB-C Clamp Hub for 24-inch iMac
Bawanfa iMac USB 3.0 Hub Ultra-Thin 2 Port USB Hub Adapter in Aluminum + Type C Port + SD & TF(Micro SD) Card Reader | Walmart Canada
Mac USB Ports Stopped Working? It's Likely Easy to Fix | OSXDaily
USB 3.0 speeds on late 2012 iMac | MacRumors Forums
iMac - Wikipedia
Sabrent Premium 4-Port USB 3.0 Hub for iMac (2012 and later)
iMac i5 3.2 27-inch (late 2013) ports/man… - Apple Community
Differences Between Mid-2011 and Late 2012 Aluminum iMac: EveryMac.com
increasing USB ports on iMac late 2012? | MacRumors Forums
Where is the Mini DisplayPort on an iMac … - Apple Community
A Clever Way to Access the USB Ports on Your IMac (+ Video) : 5 Steps (with Pictures) - Instructables
iMac (27-inch, Late 2012) - Technical Specifications
Sabrent 4-Port USB 3.0 Hub For iMac Slim Unibody (HB-IMCU) | HB-IMCU
Aluminum Alloy Usb 3.0 Hub 3 Port Adapter Splitter With Sd/tf Card Reader For Imac 21.5 27 Pro Slim Unibody Computer - Docking Stations & Usb Hubs - AliExpress