Not sure what else, but the thing can tell you if a cable is USB2.0, USB3.0/3.1/.. or just for charging.

I could design and produce a small batch of those adaptors.

Would anyone be interested in getting a prototype and helping to test it?

Interesting, I just uploaded the .mp4 directly to lemmy and assumed this to be working. How else would you share a gif/short video?

Pretty much. I'm not even sure if regular USB ports can talk to pins individually, let alone test them for shorts.

I have one of those, it may pass as the great grandfather ;)

Yeah, unfortunately fast data and fast charging are two independent characteristics...

The thing is from Austria though?

They actually renamed the types which makes everything even more confusing