I modeled a PD trigger housing with switch for the 3rd slot so i can switch between 9v and 12v .  

You can also configure it to be 15v-20v or not use the switch at all to have static voltage out of it.

I also made it stay in place with fasteners. 

You can use 2 of M2x4 or M2x6 Button head cap screws to get a nice grip that lets you pull USB cables out of it easily.

You can alternatively use 1 M2 screw between M2x4 and M2x15 and it will still stay in place just fine.

From my testing, even when running 20v, the board and the component never reaches high enough temperatures to cause any issues even if it was printed with PLA.

PD Trigger

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M2x6 screw

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