Features
Compatible with GRS Spinner V2/Trackball V2 and A1U original stock spinner/trackball (P.S. USB is not compatible with new Arcade1Up upgrade spinner)
Only compatible with original GRS spinner, NOT compatible with counterfeit
Convert your Arcade1Up stock spinner and trackball to USB Compatible(USB cable is not included)
No soldering and wire cutting
Convert your stock Arcade1Up Interface Board
Ask any Arcade1Up 12 in 1 owner and they'll tell you a thing or two about how limited their stock controller is, especially with the clunky, horrible dial control, and non-responsive spinners, and trackballs. With the GRS Arcade Spinner and Trackball, you can upgrade the playability of the classic Arcade1up with a simple mod. With the new GRS 12 in 1 Interface Board, you can instantly make your GRS accessories or your Arcade1Up stock controller USB compatible, and use the trackball and spinner just like the original setup.

Compatible Design 
With the new USB compatibility, you can enjoy using your A1U original stock spinner/ trackball and the GRS upgrades with alternative setups without having to hard-mod, solder, or cut any wires.