Solution:

P/N: 2007020100 MBPC-201 User's Note MBPC-201 MicroBox PC is a chhassis with 25W DC-DC power for 3.5" Biscuit PC. Which support PCM-3860/3864, PCM-4823/4823L, PCM-4825/4825L Specification: 2 expansion solt for PC/104 module 2.5" HDD drive bay Dimension: 95.1mm x 196.2mm x 123.6mm Power Supply: Output rating : 25Watt Input Voltage : 9 ~ 36Vdc Output Voltage: +5V/3A, +12V/0.45A, -12V/0.45A BPC-101-PM Rev. A101-3 is DC to DC converter. Drawing as attach file