
USB/Eth/BT · Desktop DT/TT
These are common settings — not a limit. This model works just as well in manufacturing, logistics, warehousing, healthcare, education and beyond. Not sure it fits your operation? WhatsApp us and we’ll confirm before you buy.
Standard thermal/thermal-transfer label rolls — we stock common sizes. Check the spec table for the max width.
Yes — it works with common labelling and POS software. WhatsApp us your setup to confirm.
100% genuine and sealed, with the manufacturer’s warranty, plus our 15-day replacement guarantee.
Popular add-ons that pair with the Zebra ZD421.
Full official manufacturer specs — tap a section to expand.
| Print technology | Direct thermal |
| Maximum resolution | 203 x 203 DPI |
| Print speed | 152 mm/sec |
| Maximum printing width | 10.4 cm |
| Ribbon length | 74 m |
| Maximum label width | 10.4 cm |
| Maximum label length | 0.991 m |
| Media thickness | 0.08 - 0.19 mm |
| Connectivity technology | Wired & Wireless |
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Bluetooth | Yes |
| Bluetooth version | 5.0 |
| Bluetooth Low Energy (BLE) | Yes |
| USB port | Yes |
| RS-232 ports | 1 |
| Internal memory | 256 MB |
| Flash memory | 512 MB |
| Scalable fonts | Swiss |
| Product colour | Black |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Operating relative humidity (H-H) | 10 - 90% |
| Storage relative humidity (H-H) | 5 - 95% |
| Operating temperature (T-T) | 4.4 - 41 °C |
| Storage temperature (T-T) | -40 - 60 °C |
| Width | 177.5 mm |
| Depth | 220.8 mm |
| Height | 150.7 mm |
| Weight | 1.35 kg |