Frontgrade Technologies, a leading provider of high-reliability electronic solutions for space and national security missions ...

Each of the power supply modules are two separate PCBs and the design has to account for the high currents required. The power supply is a switching design with some filtering on the motherboard.

I used a 12VDC green LED plate with its power supply to conduct my first test. Below is a casual snap of that setup. This is a snip of my Arduino Serial Monitor readout (yes, it worked quite well): ...

Another answer is to find a higher voltage supply and mate it with a cheap power supply module. We’ve also seen non-PC power supplies put in a PC case.

With the power supply’s three 12V outputs, customers gain flexible and shareable power distribution suitable for modular payload integration and scalable mission processing systems.