Zebra ZD421 Direct Thermal 203DPI Label Printer, Bluetooth, Ethernet, USB Elevate your expectations with the advanced desktop printer that delivers the features, flexibility, reliability and security you need – today and tomorrow. Featuring Zebra’s exclusive Print DNA software suite, the ZD421 is easy to setup, operate, manage and maintain – onsite or remotely. Direct thermal, thermal transfer, healthcare and ribbon cartridge models support a wide variety of applications. Unlike other brands, Zebra’s printers give you peace-of-mind security with PrintSecure, part of Print DNA, to prevent downtime and costly cyberattacks.  Advancing the legacy of Zebra’s popular GK Series, ZD421 printers offer added features, capabilities and security for years of outstanding, hassle-free performance.