Original Sega arcade game wiring harness. We are not sure what game(s) this one is from, it appears to be from the Model 1, 2 and 3 Sega boardsets based on the connectors are gut feeling. It is in good condition, a little dusty, but no signs of cut connectors, etc. We are thinking maybe something like Virtua Racing, Virtua Fighting or Dayonta USA, but don't know for sure.
Certainly usable for making a test rig or figuring out what game it came from.