Beautiful.
It's what the developer Toaplan used to test JAMMA PCBs. Not exactly a supergun/control box type thing, but more like a passthrough with some test buttons, and what looks like a connection to a PC to view measurements or other data about the signals passing through, or to program it to send repeated inputs sort of like a macro. The PCB connects to the input and then the output I assume goes to a cab or control box.What is the purpose of this machine?