If that wasn't enough, get this: These USB wall sockets could double up as smart sockets, too. At the moment, the USB socket in your iPad or Kindle charger is dumb; it's simply a charging socket.

When you don't have anything plugged into a USB wall socket, it typically enters standby mode and only uses 0.05 watts of power. This is very little and doesn't significantly impact your energy ...

There are lots of good USB power meters on the market for older USB sockets and standards, but this appears to be the first true USB-C meter (earlier meters aren't rated to the full 5A/20V ...

With the abundance of USB-dependent devices, it's surprising more cafes, offices, and homes don't have outlets like the U-Socket. After stumbling upon a photo of an iPhone plugged directly--no AC ...

In general, unless it says otherwise, your laptop and PC are probably outfitted with 500mA sockets (unless they're USB 3.0, in which case they're probably 900mA).