Doesn't provide enough power to my keyboard (Massdrop ALT) for it to work.
It's a shame, because the cable looks nice. It doesn't function nice though.
Infinaut5 feet.
And I ruled out it being the USB port, it's the same port that I use for my keyboard normally and I tested it in my laptop with the same results.
I don't have any other USB-C keyboards (or devices, really) to test it with. Sorta just chalking it up as an L because I've heard hassles about the return process with Massdrop.