All USB-C cables are equal. But some, as the saying goes, are more equal than others.
This little gadget from Plugable is a fantastic bit of kit. Plug your USB-C power supply into one end of the gadget, plug the gadget in to your laptop, phone, or any other USB-C device. Watch the screen to see how much power is flowing.
- A black and white screen!
- A button to flip the display over!
- That's it!
There's no Bluetooth or WiFi to get the results out. There's no flash storage to record anything. There's no graphs. It shows you volts, amps, watts, and direction of power. That's all I need it for, and that's all it does.
As you can see, the screen reacts quickly. So you can get a good idea of what power load your various apps have.
This is great. My work Windows laptop was complaining that it wasn't receiving enough power from my USB-C docking station and, with this, I was able to see that it was getting about 40W.
I was able to test some USB-C cables to see how much power they could support.
Even better, this doesn't interfere with normal USB-C functions. It happily passed through video, audio, peripherals, etc.
It's about £20 - £35 online depending on whether The Algorithm favours you or not. You can find cheaper ones - but they tend not to go up to 240W.
This is an indispensable gadget - especially if you have dozens of cables of uncertain provenance. It'll tell you just how much they're capable of delivering.
Now I just need to find a USB-C plug which can actually deliver 240W via PD!