The Zebra ZD421 is an advanced desktop label printer and is the successor to the ZD420 and the popular GK420 series. This model is known for its quality and user-friendliness. The ZD421 is available in different versions, with a choice between direct thermal or thermal transfer printing technology and 203dpi or 300dpi resolution. All models have various connection options and you can optionally opt for a battery pack, with which the printer can be used wirelessly.
| Print technology | Direct thermal or thermal transfer |
| Resolution | 203dpi or 300dpi |
| Max. print width | 104mm (203dpi) or 108mm (300dpi) |
| Max. print speed | 152mm per second (203dpi) or 102mm per second (300dpi) |
