Supergun JAMMA CBOX: an arcade board connected to a TV

An arcade board has no screen, no power supply and no controller: it expects the chassis of a cabinet. The CBOX takes on that role on a corner of your desk. It provides the 56-pin JAMMA connector, an ATX power input and an RGBS video output to a SCART socket. This version takes controllers in the DB15 format.

What it does

• 56-pin JAMMA connector: takes a game board with the standard JAMMA pinout, Neo Geo MVS motherboards included.
• RGBS output to SCART: the board's analogue RGB signal goes to the TV without being re-encoded as composite.
• DB15 controller port: 15-pin Neo Geo AES/MVS-style pinout, for a stick or controller fitted with this connector.
• Powered by an ATX unit: a standard PC power supply provides the voltages required by the game board.
• No soldering: the board slides into the connector, and everything else plugs in.

What it doesn't do

• Supplied without games, in compliance with the law: no arcade board and no cartridge are included.
• No ATX power supply, SCART cable or DB15 controller in the box — all of these must be sourced separately.
• Doesn't improve the picture: no HDMI conversion, no VGA, no deinterlacing or scaling. The signal stays at 15 kHz.
• Only wires the three buttons per player provided for by the JAMMA standard. Games with four or more buttons (additional harness known as a “kick harness”) need extra wiring, not included.
• Doesn't replace a cabinet chassis: no coin mechanism, no speaker, no screen.
• The version sold here is the DB15 version. It doesn't directly accept controllers with a DB9 connector.

Compatibility

Arcade game boards with the 56-pin JAMMA pinout, including Neo Geo MVS motherboards (MV1 and derivatives). For the picture, you need a display that accepts 15 kHz RGB: a CRT TV with RGB SCART, an arcade monitor, or an external converter such as an OSSC or RetroTINK on a modern screen. A flat-screen TV connected via SCART rarely displays this signal correctly without conversion. For controllers, a DB15 connector with the Neo Geo AES/MVS pinout. Boards with a proprietary pinout (JAMMA+, JVS, specific manufacturer harnesses) are not covered.

Skill level required

No soldering, but this isn't a mass-market product. You need to know how to orient a JAMMA board the right way round — plugging it in backwards can destroy the game board — have a working ATX power supply, and check the voltages before powering on for the first time. Have a multimeter to hand for this check. Allow just under an hour for a careful first setup.

In the box

• 1 Supergun JAMMA CBOX, version with DB15 controller port.

Listing verified on 19 August 2026.

Read before ordering: Workshop & modding

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