This is meant to breakout a large 12V or 5V PSU such as from here: https://www.circuitspecialists.com/12-volt-8-amp-power-supply.html
It standardizes on 5.5/2.1mm barrel plugs. You can use multiple of the boards if you need more. To connect to boards, use male to male barrel plugs search term "Male to male dc power 5.5", use extensions if you need them longer, and use adapters if you need different size barrel plugs on output, search term: "multi type 23 or 28 dc power adapter". Fuse is OPTF0078P, digikey number F6094-ND. NOTE: fuse untested in footprint. Need to verify. Mounting holes are M5.
Cleaning up my computer equipment, and needed less PSU clutter.License: GPL3