USB to Neo Geo Supergun DB15 adapter MVS CBOX USB2DB15

The USB2DB15 is an open-source adapter designed to provide full compatibility between modern USB controllers (such as DualShock, DualSense, fightsticks or PC pads) and classic arcade systems with a DB15 interface, such as Neo Geo AES, MVS, CBOX, HAS or JAMMA Superguns.

Originally developed by Raphnet and Raphfriend, this adapter stands out for its ultra-fast performance (latency under 1 ms) and broad compatibility with modern controllers, including DualShock 3/4, DualSense (PS5), Xbox One / Series controllers, 8BitDo, Mayflash, Retro-Bit, Brook, and many more.

The adapter converts USB HID signals to DB15 in real time, offering an authentic gameplay experience identical to the original hardware, without intermediate converters or loss of accuracy. It is fully Plug & Play, requires no drivers, and can be powered directly through the DB15 port or via an auxiliary MicroUSB (5V DC).

In addition, the USB2DB15 project allows easy firmware updates to improve compatibility and add new features such as custom profiles or support for new controllers.

Its firmware, available on GitHub, supports multiple button layouts and control modes (LS, DPAD, RS), and includes support for SOCD Cleaning modes, essential in competitive environments.

Features

• Compatible with Neo Geo AES / MVS / CBOX / HAS / JAMMA Supergun systems
• Supports USB controllers and fightsticks (PS3, PS4, PS5, Xbox One, Xbox Series, 8BitDo, Brook, Mayflash, etc.)
• Direct USB → DB15 conversion without signal loss
• Latency under 1 ms
• Based on the open-source USB2DB15 project
• Firmware updatable via USB connection
• Supports LS / DPAD / RS modes
• Compatible with SOCD Cleaning
• Plug & Play operation, no drivers or setup needed
• Powered via DB15 or MicroUSB (5V)
• Supports vibration and automatic controller detection (depending on firmware)
• Compact, durable and easy-to-install design