The most important thing to keep in mind when operating the server yourself is the power supply. Even if applications and networks are running normally, it does not make sense to power down essential ...

USB Type-C is the most flexible connection for notebooks and smartphones. The most important of its many capabilities is as a charging socket for battery-powered devices. USB-C should finally make ...

Once upon a time, building yourself a power supply required sourcing all manner of components, from transformers to transistors, knobs, and indicators. These days, everything’s a bit more integrated ...

USB Power Delivery (USB-PD) now offers faster, more efficient, and more versatile power handling solutions. As we can all see, it’s an exciting advancement that significantly enhances the capabilities ...

In this post I’m going to share my thoughts on making a simple emergency power supply system for Raspberry Pi boards. Hopefully it will be cheaper and easier to build than a commercial version because ...

How many watts can a USB port actually output? The answer depends on your cable and protocol. Here is the ultimate guide to ...

One of the most positive tech developments of this decade has been the mass adoption of USB-C over the old micro-USB, USB-A, and other lesser-used gadget ports. Whether you’re powering your earbuds, ...

This is a follow-up to this thread: https://arstechnica.com/civis/threa...-polarity-of-this-laptop-barrel-jack.1491071/tl;dr I have a laptop but no charger, and I'm ...