There are rudder pedals, joystick, mouse, keyboard and a mic that use usb ports.
I put in a card that has 7 usb ports, i also have a 7 into 1 powered usb hub
There is a chime whenever i plug or unplug from usb port, or turn port off and on with button
Doesnt seem to matter what port i use
It used to be I could turn off or unplug pedals and they would work sometimes calibrating would do it