Why doesn't NI make a power supply for the Kontrol Mk3 keyboards that only have the USBC port?
Probably because they're a dime a dozen at any local store and the price would probably be over inflated given the shipping costs and such. I just used a Samsung wall wart power supply off of an old laptop. As pointed out in the documentation you could also power it from a USB-c port on your PC.
EU Policy (Directive (EU) 2022/2380)
The EU's "common charger" directive aims to increase consumer convenience and significantly reduce e-waste by standardizing charging ports and technology.
This ^^^.
It's a standardized port, most computers are able to provide enough bus power, and if not, then most people have such chargers already.
When I read back in the days about the good EU Policy initiative, I was more than sure that companies would have take the occasion to sell stuff without providing PSU and without lowering the prices… 😏
