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It's not an input device in itself it's a port that an input device plugs into to get power and to signal to the computer. Think of it like an extension lead with individual plug switches on, if you power down the extension lead you also power down everything plugged into it.
usb keyboard(input device) - usb controller(extension lead) - computer
ps2 keyboard - computer
Clockwise
ExTra
Bios is next in my list but I don’t want it fuck it up. Your USB allow this device to wake computer is also greyed out?