Hey guys, I just recently bought a custom arcade cabinet 90% complete and no longer have plans for this Controller. You can't build this for less than $300. I'm asking $200 for it. Can be used in their pre configured cabinets, your own custom cabinet or as a stand alone to be used on a retropie, PC or game console. Reply or email if you are interested (gaskan@nycap.rr.com).
Here is the link to the controller on recroommasters website -
https://www.recroommasters.com/Xtension-Two-Player-Control-Board-Xbox-360-PS3-PC-p/rm-xt-sd-board.htm