Additional Power Supply Information: These games use a 12v/5v power harness that is near the front right side of the inside of the cabinet. This 3 hole hookup is often used for various aftermarket mods. You will want to make sure this power connection is not already being used in your game. If it is being used or you think you may be using it for something else in the future, you may want to purchase our Sega / Stern 12v/5v Power Splitter.