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: USB C Hub for iMac 24 Inch 2021 Gen2 10Gbps iMac Adapter - Multiport Clamp iMac USB Hub with 10Gbps USB-C Port, 2 USB-A 10 Gbps Data Ports, USB3.0 SD/TF Card
24-inch M1 iMac buying guide: Everything you need to know | Macworld