The Zebra ZT421 is an industrial thermal-transfer label printer built for high-volume barcode label and tag printing in warehouses, manufacturing lines and shipping departments. This configuration prints at 203 dpi across a 6" print width, with a built-in cutter for automatically separating individual labels, and connects via serial, USB, 10/100 Ethernet and Bluetooth 4.1/MFi plus USB host for peripherals like scanners. Businesses choose this class of printer over a desktop label printer when they need continuous, industrial-duty label output - shipping labels, product tags, compliance labels - with the network and Bluetooth connectivity to sit on a warehouse floor or packing line and be shared across multiple workstations.