Ever wonder if your USB C cable is USB2 or USB3? Do you have some charge-only cables hiding in a box just waiting for the right moment to spoil your project plans?!
Fear no more!

I’ve made a simple board to test most of the things!

@alvaro - Wow, that's a useful thing to have in a toolkit. I gotta make (or, since I'm lazy, buy) one of these.

Most of my Thunderbolt cables are marked, but would it be hard to add T-bolt cable evaluation as well?