G3 KO COKE Control Board for Royal Vendors Coke Chain Drive 550, 660, 804 soda vending machines. The Eprom # is 407950 - 1.21 (Latest eprom version of 3rd generation board). This board has the blue mode button. Compare your control board with pic.  The red / black mode button boards with these eprom#'s 67015-10 / 67121-7 WILL NOT work in your machine if u need this board. The control board has been tested - working flawlessly!

Will Buy Core for $50.00

Send your old board back for $50.00 refund with slip.

FREE Fast USPS 2-3 Day Ship!