ExBus 6-Slot Backplane

This board connects the rear port of your GameTank to up to six ExBus cards simultaneously. 

To finish this board you'll need:

1 x 10090926-P264VLF

6 x 5-5530843-0

"ExBus" short for Expansion Bus is the name I gave to a multiplexing protocol for PC-style addon cards to the GameTank. ExBus cards get access to 12 bidirectional I/O lines from the rear expansion port, and this access can be shared between multiple other cards that are connected simultaneously. 

ExBus is not required for most GameTank games.