Locate USB Controllers: In the Device Manager, scroll down and expand the "Universal Serial Bus controllers" category. Access USB Port Properties: Right-click on an entry named "USB Root Hub ...

To determine the power, current, and voltage of a USB socket, Windows on-board tools, freeware, and test sticks from $10 can be used.

If you're looking to add USB ports to a PC, you might see something about USB headers. Are these the same as USB ports? If not, how are they different?

Many cars these days have USB ports to allow integration with and charging of mobile devices, but what do you do when your car's USB ports don't work?