EEVBlog also talked about this in a mailbag episode: https://www.youtube.com/watch?v=rEZQvSgdA2k&t=1839s
And they also have different cable versions available: https://caberqu.com/
There are superior versions of this that include every physical USB port (A, B, C, Micro, Mini, and even lightning) so that you can test any cable instead of just type C to type C.
Here’s the one I use: https://treedix.com/products/treedix-usb-cable-tester-board-usb-cable-checker-data-wire-with-acrylic-case-charging-test-data-line-type-c-micro-type-a-type-b
The exposed pads are also fantastic to break out data lines for measurement when performing electronics repairs.
That’s awesome.
Have you ever seen it with a real case, not just the acrylic “cover”? I’d like to be able to hand it to someone and not worry about the guts. Yea, I could print something, but frankly I can’t be arsed, lol.