Kenable make some of the best cables.
I have used Kenable for years first with ebay then I found out they are local to me there ethernet cables flat white cat6 is excellent and a greT value.
I had an ASUS USB monitor that used this kind of cable. Unfortunately it refused to work with any cable longer than the one that came with it. I ended up having to use a powered USB hub to extend it.
It's cheap but looks super-low quality. As for being relatively obscure, pretty much every portable external hard drive uses this kind of cable.