I’ve made a compact 9 position passive Eurorack busboard.

-9 shrouded 16pin headers.
-Compact and low profile design.
-Right-angled Faston connectors.
-Fat copper traces for -12, gnd, +12 and +5 volt.
-Clear polarity markings.
-8x 3mm holes to fixate it in your case.
-Size: 16.5 cm x 3.9 cm x 1.5 cm. (LxWxH)

I have kits available:
The kit contains the PCB, 9x 16pin shrouded headers, 8x Faston right angled connectors,
8x isolated crimp connectors for the cable to your power supply. (cable not included)

Build guide:
Busboy Build guide