The cable tester is a beautiful black circular PCB, with USB ports of nearly every type on the edges. It works partially through passive detection with LEDs and otherwise through active detection ...
How to Fix USB Port Issues. When your USB ports suddenly stop working, the problem can always be tracked down to either a ...
The monitor, printer, network, keyboard and mouse are permanently plugged into the port replicator, which connects to the laptop via the USB port. A port replicator provides some or all of the ...