... ,( Optional)verticallyCustomer DisplayVDF customer displayOptional PartPrinter(Optional)57mm /80mm thermal printer ,75mm Dot Matrix printerCash Drawer ( Optional)3-position top graded ... laser scanner,MS-7120 scannerBarcode printer( Optional)Industrial or not industrial( Argox, Postek, Zebra, Godex, Tec, Tsc, Stao)IC card reader ,writer ...