This sale is for Dixie Narco S2 control board updated for card reader interface or just software for your Dixie Narco S2 control board – you select This listing is for a refurbished control board that has been updated to interface with a MDB card reader or just the software – you select. If you have this model machine listed in the title and your board has older software you can buy just the eprom / microcontroller and update the board yourself. In many cases the new software allows for correct DEX downloads. The software version will interface with Nayax, Cantaloupe USA T, Cora, Navigator, Castles, etc.