You can connect your Mac mini with other devices, like a keyboard, mouse, or trackpad; wearable devices like AirPods; and more. There are two ways to connect accessories: wirelessly using Bluetooth technology or by connecting a cable from the accessory to one of the Thunderbolt / USB 4 ports or USB-A ports on your Mac mini.
Before you begin. Before you connect an accessory to your Mac mini, do the following:
Consult the documentation that came with your accessory.
If you are connecting with a cable, make sure you have the correct cable. You may also need an adapter to connect the cable to your Mac mini. To learn more about your ports and their capabilities, see Connect a display to Mac mini for details).
Learn more. See If you see USB Devices Disabled on your Mac