Square power supply plug part numbers

12-pin board wafer Molex 09-18-5121 with wire housing 03-09-1126 (03-09-1122 is the harder-to-find option). 6-pin board wafer 09-18-5061 with wire housing 03-09-1062. The .093 inch pins are 16-06-0002 (male) and 16-06-0001 (female, now 43080-0001).

Systems

• Data East CPU Version 1/2
• Data East CPU Version 3
• Data East/Sega CPU Version 3b

Related tips

• Burnt 12-pin power supply input plug stops the game booting
• Burnt 3J1 square power input connector
• Power supply CN4 has no key: refit it carefully
• Resets from power supply connectors CN1 and CN2
• Burnt GI pin on the Data East power supply header: move it to a spare pin
• Power supply board versions are not interchangeable
• Power supply board fuses (late games)
• Z1 on the power supply is a varistor, not a diac

Source: Repairing DataEast 1987 (Laser War) to Sega 1995 (Batman Forever), Part One, Clay Harrell (pinrepair.com)