Sabrent Premium 4-Port USB 3.0 Hub for iMac (2012 and later)
21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
Amazon.com: Satechi Aluminum Type-C Clamp Hub Pro with USB-C Data Port, USB-A 3.0 Data, Micro/SD Card Reader - Compatible with 2020/2019/2017 iMac & iMac Pro, Does Not Fit 2021 iMac (Silver) :
WiFi, IO & The Chassis - 21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
New CPUs, faster Wi-Fi, same flaws: Apple's 2013 iMac reviewed | Ars Technica
Amazon.com: USB C 3.2 Gen SSD Enclosure for 12+16 PIN MacBook Air/Pro SSDs,MacBook SSD Enclosure Supports for 2013-2017 MacBook Air, 2013-2015 MacBook Pro Retina, 2013-2014 iMac, 2013 Mac Pro, 2014 Mac Mini : Electronics
WiFi, IO & The Chassis - 21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
ACASIS USB C 3.2 SSD Enclosure Suit M.2 Nvme SSD 12+16 PIN for
iMac (27-inch, Late 2013) - Technical Specifications
Amazon.com: TWOPAN USB C Hub Multiport Adapter for iMac, 6 in 1 USB C to USB Adapter iMac 2023/2021 iMac M3/M1, USB Hub with USB 3.0 Port, Micro/SD Card Readers & Multi
iMac (21.5-inch, Late 2013) - Technical Specifications
Amazon.com: Cateck iMac Hub Aluminum USB Hub Adapter Docking Station with Micro SD & Micro SD Card Reader Combo and 3 USB 3.0 Port Compatible with 2021 iMac and iMac Pro (Upgrade
Apple iMac 21.5-inch 1.6GHz Core i5 (Late 2015) | mac of all trades