In addition to the PD trigger boards, you can actually get short cables with USB-C ports on one end and barrel jacks of specific voltages. I use a 12V one for m

In addition to the PD trigger boards, you can actually get short cables with USB-C ports on one end and barrel jacks of specific voltages. I use a 12V one for my soldering iron (love it) and have a couple 5V ones for various networking gear. No DIP switches, no ability to change what they output, just rock-solid functionality assuming you can get the exact tip you need for your device you probly can from aliexpress). One caveat: In my experience all these things (cable and PD boards alike) will output 5V if the charger does not support whichever voltage (5V when you want 9V, 12V, or 20V, for example). I’d much rather they put out nothing in those cases. Hopefully the next generations will.