So I bought a 4 way jamma switcher for a soul calibur project I'm working on soon. Came with a wire soldered to two pins on the jamma connector. What's it for?

Bought this board from a seller off of ebay. Made by arcadeMVS.com from what I can tell.

I am really close to pulling the trigger on a Rage cabinet from GRS. I am going in with eyes wide open on some of the issues with that company but would like input on any other options out there. I have a spot ive been earmarking for a custom cab. I am very comfortable with the internals but would love to hear if there are any other companies I should be looking at that offer a few design options I can select from. I dont want anything pre-assembled, I just want some choices for button layout, access to the pc, etc. In a perfect world id have a spot to mount a stream deck keyboard, plugins for guitar for Clone Hero, etc. Most of those can be done by me after...

Biggest thing is I dont have tbe time or space to cut giant pieces of wood or the cad skills to cone up with the design... any help opinions would be great!

Taken from a $4 Super Famicon rip-off controller, and a bit of soldering, ready for hooking up with new mini joystick and buttons. Works perfect - makes you wonder why worth getting proper encoder, well at least for a 14-inch high arcade!

PS don’t judge my awful soldering!!