A controller board and system for converting a cash-based game machine to a cashless, wireless system employing wireless network connectivity is disclosed. The controller board consists of a circuit board, one or more emulation circuits, a serial interface, one or more switches and a microcontroller. The controller system consists of the controller board with the serial interface connected to a display and a card reader, and a wireless communication interface for communicating with the accounts server. Said one or more emulation circuits emulate the signals of cash-based peripherals on the game machine, once the peripheral cables are reconnected from the peripheral into the emulation circuit. The user's account is identified through the card reader and the user's account is debited or credited as a result of losing or winning gameplay by the microcontroller. Changes to the account balance are encrypted and sent to a casino server by means of the wireless interface.