I know someone who needs to connect a modern USB printer into a some kind of industrial machinery that uses a DB15 (15 pin, D-Sub I take it?) on the factory floor. It would be nice if I could find a ...

If you want the best performance, the rule is simple: Avoid USB-A. Don't buy a USB-A charging brick, and don't buy USB-A to USB-C cables for your high-power devices. Stick to a full USB-C ecosystem — ...