Reel Amusements is the exclusive seller of these interface PCBs:
Credit Pro is an interface that will multiply credits when a certain option is needed, adding also another output for an additional meter.

Printik is an interface PCB that speeds up the credits to come off the game for faster ticket printing.

Ducky Pro is an interface for a printer.
Buster Rev E and Buster Pro are both interfaces for ticket dispensers. We are in the process of phasing out the Buster Rev E because it is an older version.
Call 1-800-624-3779 for all your interface needs, as you cannot get these products from any other manufacturer.