Available as an assembled Module and as a DIY project.
This Module is currently available.
Power supply module
The Five Amp is a throwback to our original 5A Power Supply with some upgrades. It uses a quality 12V brick for the +12V power regulation instead of a +12V converter. The plus side of doing it this way is that whatever amperage the -12V and +5V rails are not using can be used by the +12V rail, which always draws the most of the three.
Five Amp comes in three different power configurations. We recommend selecting an option based upon your -12V rail draw. For a rule of thumb, Red (with red LEDs) will power a single row of 84 or 104HP, Green will power two rows of 104HP, and Blue will power three to four rows of 104HP.
Features:
https://www.synthrotek.com/products/modular-circuits/five-amp/
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These merchants probably sell this module. Huh?