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 ...

Said to be accurate, fast, and rugged enough for field applications, the MA24106A, USB-powered sensor measures true-RMS power, regardless of the input signal or bandwidth, over a dynamic range of 63 ...

In many of today’s power measurement applications there is a need to make power measurements and use other instruments such as a spectrum analyzer, vector network analyzer or signal generator.

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 ...

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, ...

Plugable has recently launched its new USB-C voltage and amperage meter for high power devices offering the ability to monitor power and charging up to 240W. The third generation USBC-VAMETER3 USB-C ...

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 ...