Full Jamma Harness Extension
This is a complete Jamma Harness Extension. All 56 connections are wired.
There are several benefits that this harness has over the partial harnesses
-The number of power wires are doubled resulting in more power available to the game board
-Doubling up on the ground wires.
***Possibly most important is that there is a Video Ground wire present.
A lack of Video Ground can lead to garbage on the screen.