Looking for 1-4 of the harness in the photo.
Part number is 60413705. There are two parts to this harness. One part has a 10 pin connector on each end. It goes from backplane to front of brain box for main power. Other part is for powering USB. It has different connections on each end. Larger five pin with only four wires plugs into brain box front, other/smaller connector goes to backplane.
Putting it in an IGT G20 with a newer brain box that has power connections on the front of the brain box vs older/power connections on top.