Author Options:

is a brown wire the same as a black wire? Answered

usb cable. and no there is no black wire


Never trust the color of a wire. There are no strict guidelines when it comes to the wire color in most cables. So it's always best to verify with a meter.

Look up a pin-out diagram for the type of usb plug you're looking at. If you're still unsure verify with a meter.

Check. Use a meter to trace it.