The Zebra ZE521 is an OEM print engine - a barcode/label print mechanism built into a converter's or integrator's own card/label-issuance equipment rather than a standalone desktop printer. This right-hand (RH) configuration prints at 203 dpi across a 6-inch web width - a coarser, faster-throughput resolution than the equivalent 300 dpi ZE521 variant, better suited to larger barcodes and text than fine small-format graphics. It includes a colour touch interface, Zebra's ZPL programming language, USB/Serial/Ethernet connectivity, Bluetooth 4.1, and dual USB host ports. Integrators use engines like this inside kiosks or industrial labelling equipment where a bare, embeddable print mechanism is required rather than a boxed printer.