Ultimarc J-PAC Interface PCB for MAME Arcade Controls

The Ultimarc J-PAC Interface is the essential PCB solution for connecting arcade controls like buttons and joysticks directly to your PC's keyboard or USB port. Designed specifically for MAME emulation and arcade cabinet builders, this interface board makes it easy to transform any PC into a fully functional arcade machine.

Key Specifications

• 32 programmable inputs total
• Supports 2 joysticks with 8 buttons each
• Includes coin1, coin2, start1, start2 inputs
• Built-in MAME control key mapping
• Special shift function for extended controls
• Keyboard and USB port compatibility
• Non-volatile memory stores custom key codes

Perfect for Arcade Projects

Whether you're building a full MAME cabinet, upgrading an Arcade1Up machine, or creating a custom control panel, the J-PAC eliminates the need for complex keyboard modifications. The pre-configured MAME key mappings mean you can connect your controls and start playing immediately—no programming required unless you want custom layouts.

Why Choose the J-PAC Interface

• Plug-and-play simplicity: Pre-loaded with standard MAME key codes
• Professional grade: Designed for permanent cabinet installations
• Flexible programming: Customize any input to your preferences
• Shift key functionality: Access secondary control sets without extra hardware
• Reliable connection: Works with over 1000 MAME-supported games

Compatible with MAME, other PC emulators, and ideal for arcade cabinet builds, control panel projects, and retro gaming setups. Includes comprehensive keycode documentation for easy setup and customization.