Satechi Aluminum Type-C Clamp Hub Pro with USB-C Data Port, 3 USB 3.0, Micro/SD Card Reader - Compatible with 2019/2017 iMac and iMac Pro (Silver) : Amazon.com.au: Computers
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Satechi USB-C Clamp Hub Pro With USB-C Data Port, USB-A 3.0 Data, Micro/SD Card Reader - For 2020/2019 iMac & iMac Pro. Not Compatible With 2021 iMac M1 (Space Grey) : Amazon.nl:
Refurbished Apple iMac 5K Retina 27-inch 2019 – Hoxton Macs
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Amazon.com: Anker 535 USB C Hub (5-in-1), with 2 USB-A 10 Gbps Data Ports, USB-C 10 Gbps Port, SD and microSD Card Reader, for iMac Pro / iMac 24 inch 2021 / iMac 27 inch / 21.5 inch : Electronics
Amazon.com: iMac USB C Hub Adapter 10Gbps, 5 in 1 USB C Hub for iMac 2021 USB-C Clamp Hub USB C Docking Station iMac Accessories with 10Gbps USB C Port, 2 USB