2 layers54.9 × 30.7 mm

Pico psu mount
chriz2600/PicoDreamcast
Small adapter board to easily hook up a PicoPSU to the Dreamcast
4 parts85MIT
KiCad boards from 2 GitHub repositories tagged “picopsu”, the most starred first; open any of them in PCBKit.

chriz2600/PicoDreamcast
Small adapter board to easily hook up a PicoPSU to the Dreamcast

leaded-solder/x68000-pro-picopsu
Adapter to use PicoPSU power supplies in a Sharp X68000 PRO computer