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 ...

Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

With USB Type-C becoming the new standard, there are a number of companies getting product out in the form of chargers, cables, and more. Unfortunately, not all of these meet the new USB-IF standards ...

Your MacBook isn’t charging right and you can’t figure it where the problem is? Plugable’s USBC-VAmeter3 can help. Connect it to the power cable running to your Mac, iPad or iPhone to see the voltage, ...

Satechi hopes to prevent dodgy USB-C accessories from causing damage to your MacBook with its new USB-C Power Meter, which shows you exactly how much power is being pulled from and passed into your ...

There will be many obstacles on the way to the promised single cable type USB-C utopia: new standards that aren’t backwards compatible; USB-C sockets that outwardly look the same, but aren’t ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. Plugable is one of those fascinating companies that make ...

So a few months ago, I stumbled upon a thing at Adafruit.com called a "Charger Doctor" which was really just a Multimeter designed to slip inline with your USB cable. It was $7.50 and I liked it.

Fortunately, if you’ve ever needed to test the voltage on your USB-C devices, there is a tool for you. There are quite a few USB-C voltage meters on the market, including one from one of my favourite ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. is a senior editor and founding member of The Verge who covers gadgets, games, and toys. He spent 15 ...