USB power supplies are super cheap and omnipresent. They are the Tribble of my household. But they’re not all created equal, and some of them may even be dangerous. I had to source USB power ...

Your computer likely has multiple USB ports, and maybe even multiple types of ports on the same machine, but how does that ...

There’s little technical reasons that a switch-mode power supply has to be hard-wired to a certain voltage, and USB-C breaks these chains. Now, you can get 9 V or 20 V at 3 A from a gas station ...

If you're unsure of the differences between USB-C and Thunderbolt or between USB 3.0 and USB 3.2 (or is that USB 3.1?), ...

Try using the same device on another computer, and if you receive the same error, it’s best to use a USB HUB that comes with its power source. They come with high-speed charging ports that ...

A power tip that discusses how to address highly integrated USB PD charger design constraints with a self-biasing circuit.

Some USB ports allow you to play music directly ... don't expect your Android or iPhone to charge fast when using your ...

Buying a USB charger for your new phone is easy, but picking out the perfect one is a bit more complicated. Do you need to power both a phone and a laptop? Is affordability your primary concern?