The Zebra ZT620 is an industrial thermal-transfer label printer built for high-volume, continuous-use label printing in warehouses, manufacturing and distribution centres. This 6-inch print-width model prints at 203dpi and includes Serial, USB, Gigabit Ethernet, Bluetooth 4.0 and USB Host connectivity for integration into existing warehouse management or ERP systems, with a tear-off dispense mode and support for RFID UHF encoding for printing and encoding smart RFID labels in one pass. Machines in this class are chosen for their rugged metal construction and duty-cycle rating rather than desktop label printers, and are typically deployed on packing lines, shipping docks or asset-tagging stations running many thousands of labels per shift.