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

With the growing number of devices that most people use today, be it smartphones, smartwatches, laptops, wireless earbuds, and other gadgets, charging them quickly and efficiently becomes important.

Powering external devices directly from a PC’s I/O ports has been a thing long before USB was even a twinkle in an engineer’s eye. Some of us may remember the all too common PS/2 pass-through leads ...

“The best charger is the one that shipped with your laptop” is old advice that needs updating because there are often superior options available either as your principal laptop charger, as a spare, or ...

The USB Type-C connector and power delivery (PD) specification has brought radical changes to the mobile device industry, and USB Type-C PD 3.0 could optimize battery charging for portable devices.

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 ...

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, ...

For one-off projects, adding a few integrated circuits to a PCB is not too big of a deal. The price of transistors is extremely low thanks to Moore and his laws, so we’re fairly free to throw chips ...

Short version: I’ve got two USB-C hubs that claim to deliver 100 watts of PD power, but they both seem to only deliver 65 watts. Is this the hub manufacturers lying or is this my laptop reducing its ...

If you want to charge your iPhone 12 using MagSafe, Apple recommends using certain 20W AC adapters — and they don't need to come from Apple, despite what you may have heard. We explain what the ...