IF YOU ARE NOT SURE IF THIS IS THE CORRECT BOARD PLEASE ASK. REMEMBER ALL SALES ARE FINAL. THIS BOARD WILL ONLY WORK ON THE RS800 COMBO MACHINE. THE SAME BOARD IS USED IN OTHER MACHINES BUT THE PROGRAMMING IS ONLY FOR THE RS800. JUST TO BE CLEAR THIS BOARD WILL ONLY WORK IN RS800 COMBO MACHINE. WE ALSO SELL MANY OTHER PARTS FOR THIS MACHINE AND MANY OTHERS. FEEL FREE TO ASK QUESTIONS ABOUT THIS ITEM OR IF YOU ARE LOOKING FOR SOMETHING ELSE. WE LOOK FORWARD TO EARNING YOUR BUSINESS. FEEL FREE TO ASK QUESTIONS.