Some support USB4, others don’t. Some share the controller, others don’t. Some support DFU mode but then can’t be used to create a bootable external disk on Apple silicon.
port
ADB, which could fry your Mac’s motherboard iif you weren’t careful, USB that opened up a new world of different cables and adaptors, and wireless with Bluetooth.
What are ports in networking, and where would you find them? What use are they apart from making networking more confusing?
What goes across on every Mac except an iMac, where it can wiggle worryingly?
How can I stop our students plugging their USB memory sticks into classroom Macs?
The Eclectic Light Company 