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 ...

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 ...

While USB Type-C is the new standard and is slowly making its way to newer devices, it hasn’t been without its issues. Namely poor quality non-compliant third party cables that have the potential to ...

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 ...

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 ...

With a list price of just $339, the Model 2831E benchmultimeter from B&K Precision not only offers value, but also true-RMSmeasurements for applications in service and repair, manufacturing, ...

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 ...

Seattle, Wash. — Signametrics Corp. has introduced the SMU2055 6-1/2 digit USB digital multimeter (DMM). The SMU2055 is powered directly from the USB connection, and consumes only 1-1/2 watts.

Plus, check the true mAh capacity of your smartphone, laptop, or portable battery. I just don't see how a dongle like this would save anything. It's wired in parallel, not series, so it doesn't ...