The Zebra ZD421 is a reliable 4-inch label printer that builds on the GK series. In comparison, it's 30% more powerful than the ZD420 Series and 700% more than the GK Series. Suitable for a variety of use cases. Print technology: Thermal transfer Key features: - Backwards compatible with virtually any existing printer - Quick printer setup via Bluetooth Low Energy (BLE) using the mobile Zebra app - Use the included Print Touch tag (NFC) to simply tap to pair and print - PrintSecure - The smart chip in the ribbon lets you know when it needs replacing - Print DNA software tools to remotely manage and optimise printers, track and automate supplies replenishment and ensure security. We recommend: Zebra OneCare To ensure optimal device performance, we recommend a OneCare service package with a choice of service levels including direct support from Zebra's experts. OneCare gives you priority service for repairs, replacement devices, software updates and much more. Please note: Please get in touch with us if you are interested in a custom configuration.