The Doepfer A-100 Bus Board connects up to 22 eurorack modules via 16-pin headers.  The red LEDs on the board indicate whether the correct voltage is available for the module showing the +12v, -12v and +5V. The A-100 Bus Board includes four cables.
Suitable for use with many power supplies but primarily intended to be used with the Doepfer PSU2 and the more recent PSU3.
Dimensions 392mm in length, 43mm wide, and 15mm high without spacers.
This is the same board that is supplied with the DIY Doepfer A-100 DIY Kit