Believe it or not, not all USB ports yield the same amount of power, but here's a $10 gadget that can show you which ones you ...

Have you ever tried charging your phone, laptop or headphones and, after a few hours, it still wasn’t charged? The answer is most likely “yes.” You’re then left wondering if there’s something wrong ...

Using the ATX 9801 is easy -- plug one end into a mains outlet, and it acts like a short extension lead with a digital display. The socket on the front accepts pretty much every power plug worldwide, ...