WINIPAC programming utility for all Windows versions click here

The I-PAC (Interface for Pc to Arcade Controls) are a range of boards which allow connection of arcade controls such as buttons and joysticks to a keyboard port or USB port on a PC motherboard. It was designed around the MAME emulator which supports over 1000 arcade games and can be used with other emulators or any software which requires keyboard or game controller input.
It is designed to be used inside an Arcade Games cabinet with the PC motherboard also mounted inside, but could just as easily be used with simply a control panel without a cabinet.
Special shift function buttons mean that a normal keyboard is only be needed for game loading and configuration, not for gameplay. All key codes can be programmed but you dont have to as you can use the built-in default configuration which has all standard MAME codes for quick and easy installation. Programmed keys codes are stored even after power off.
The I-PAC² has 32 inputs. They are all programmable and are marked as 2 joysticks, 8 buttons each, plus coin1, coin2, start1, start2 and Mame control keys. Any inputs can be assigned as a shift key to access an alternate code set. This board also has a connector which can be configured to plug our trackball and spinner into, or for our console interfaces.
The MAME control keys are by default assigned to the "A" and "B" inputs. Check out the code table here for all default assignments.
The I-PAC⁴ has 56 inputs. All programmable and marked as 4 joysticks, 8 buttons each plus coin 1,2,3,4 and start 1,2,3,4. Any inputs can be assigned as a shift key to access separate codes sets. When using a U-Trak trackball or SpinTrak spinner with this board, they can be ordered with their own optional USB interfaces. Note the 9-pin header on the I-PAC 4 is for factory use only.

•  Fully programmable key code set. Stored even after power off unlike some other interfaces which lose all data when powered off.
• Controls can be assigned to any keycode, game controller button, plus mouse buttons, power, sleep or wake.
•  All joystick/button connections easily made via screw tag strip. Connections marked on the board.
• Chunky 5mm screw connectors .
• Self-Test LED gives an instant check of all your wiring. Can indicate which, if any, input has a problem.
•  All button inputs referenced to ground - no need to re-wire separate grounds to each button.
•  Lead plugs into USB port.
• Using host software, an unlimited number of keycode configurations can be stored and downloaded on-the-fly. Retained on power off.
•  No separate power needed.
•  Does not use a matrix - no ghost keys.
•  Does not use a scanning method which causes a variable delay. Each input has it's own dedicated connection into the on-board CPU .
•  Fast running interrupt-driven software gives much better response than a standard keyboard controller. Key debounce uses a state method for each key. No delays between keys depressed at the same time. (essential for fighting games).
•  Either uses standard MAME keys or you can program your own character set.
•  Shift functions. Holding "Start1" and pressing other buttons sends a range of codes for MAME functions such as "escape", "Coin 1", "tab", "enter". This means no extra buttons are needed on the cabinet. In programmable mode any input can be the shift key and all keys can be programmed with a shifted code.
•  Special note for Windows MAME users! Shift key functions mean you can select and start games from the Windows interface without using the keyboard or mouse.
•  No special drivers needed. USB drivers are generic Windows.
• Fully compatible with all Apple Macs which have USB ports.
• Supports the Apple Mac "command" key and the Windows "GUI" keys.
• I-PAC⁴ and I-PAC² boards and J-PAC can be paired in any combination to increase the total number of inputs.
• Keycode programming is integrated directly into many popular front ends for seamless launch of emulator or other applications which require different codesets.