The ZD421 is based on Zebra's GK series printers and offers functionalities inherited from its predecessor along with many completely new features. The next generation ZD421 leverages past expertise and provides advanced functions with new intelligence and forward-looking flexibility.

The ZD421 is user-friendly and efficient. It is equipped with advanced features that set it apart from the competition. It features an intuitive interface, a powerful architecture, and a wireless package that can be updated in the field. It also includes a new media handbook and media handling designer, making daily use even easier. The ZD421 is designed to handle advanced technology for many years ahead. Thanks to its innovative architecture, it is built to support future printing needs. This allows you to execute multiple tasks, perform several operations simultaneously, maintain security, and be ready for anything. Backward compatible with virtually all current printers, you can reliably integrate the ZD421 into your existing printer fleet. You can use the same label formats and applications as you do today. It supports both EPL and ZPL printer languages and emulates languages typically associated with other printer brands using Zebra's Print DNA tool, Virtual Devices.