Connecting USB Devices
How do you connect USB devices to the Mac Mini?
How do you connect USB devices to the Mac Mini?
If you have devices with the larger USB-A plugs, then you need a couple of USB-C to USB-A adapters.
https://www.amazon.com/Apple-USB-C-to-USB-Adapter/dp/B00VU2OID2/ref=mp_s_a_1_1?
https://www.target.com/p/apple-usb-c-to-usb-adapter-6-1in/-/A-54031722
https://www.target.com/p/philips-6-34-usb-c-to-usb-3-1-female-adapter-black/-/A-53245266
I personally have 3 of the Philips adapters from Target and they work just fine.
If you're asking about USB-A devices, then this > OWC USB-C to USB-A Adapter Cable
or something similar from another vender.
Connecting USB Devices