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Product Code: PTHO-023
MPN #: ZD4A043-30EM00EZ
Tired of slow, unreliable label printers that jam when you need them most? The Zebra ZD421T is a compact 4-inch thermal transfer printer built for fast, high-quality labels. It prints at 102 mm per second with 300 dpi clarity, perfect for barcodes, shipping tags, and health-care wristbands. If you struggle with missed deadlines because your printer cant keep up, this machine gives you speed and reliability in one easy-to-use package.
Many small businesses and field teams lose money when their label printer cannot handle high-volume jobs or secure data. A broken or insecure printer can cause wrong shipments, compliance fines, and wasted staff time. The Zebra ZD421T solves these issues by delivering industrial-grade speed, built-in PrintSecure encryption, and a simple web-based management tool that lets you monitor performance from any device. You get a printer that works nonstop and protects every label you create.
The ZD421T fits in a retail checkout, a warehouse packing station, a hospital pharmacy, or a mobile service van. In a store it prints price tags and QR codes on the spot, cutting down on out-of-stock errors. In a distribution center it creates durable shipping labels that survive rough handling. In health care it prints patient wristbands with clear barcodes, helping nurses verify medication quickly. Field technicians can pair the printer to a tablet via Bluetooth and print service tickets right at the equipment. The flexible wired or wireless options let you place the printer wherever you need it without rewiring the whole network.
| Printing | |
| Maximum printing width | 10.8 cm |
| Print speed | 102 mm/sec |
| Print speed | 102 mm/sec |
| Print speed | 102 mm/sec |
| Number of printable dots | 12 dot |
| Maximum resolution | 300 x 300 DPI |
| Print technology | Thermal transfer |
| Paper handling | |
| Maximum label length | 0.991 m |
| Maximum roll diameter | 12.7 cm |
| Media thickness | 0.08 - 0.19 mm |
| Ports & interfaces | |
| USB 2.0 ports quantity | 1 |
| USB port | Yes |
| Bluetooth Low Energy (BLE) | Yes |
| Bluetooth version | 5.0 |
| Bluetooth | Yes |
| Wi-Fi | No |
| Ethernet LAN | No |
| Connectivity technology | Wired & Wireless |
| Performance | |
| Flash memory | 512 MB |
| Internal memory | 256 MB |
| Page description languages | EPL2, XML, ZBI, ZPL II |
| Design | |
| Display | LCD |
| Built-in display | Yes |
| Product colour | Grey |
| Power | |
| AC input frequency | 50-60 Hz |
| AC input voltage | 100 - 240 V |
| System requirements | |
| Mobile operating systems supported | Android, iOS |
| Windows operating systems supported | Yes |
| Operational conditions | |
| Operating temperature (T-T) | 4.4 - 41 °C |
| Operating temperature (T-T) | 4.4 - 41 °C |
| Storage temperature (T-T) | -40 - 60 °C |
| Storage temperature (T-T) | -40 - 60 °C |
| Storage relative humidity (H-H) | 5 - 95% |
| Operating relative humidity (H-H) | 10 - 90% |
| Weight & dimensions | |
| Width | 202 mm |
| Other features | |
| Maximum resolution | 300 x 300 DPI |
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We are retiring PICOPC Products MNHO-073, MNHO-048 and MNHO-043 and they have reached EOL (End Of Life) as we are introducing new products with better technology. We would recommend you to look into MNHO-095. For Untangle, pfSense, OPNsense, Windows 11, Proxmox VE etc. we recommend MNHO-095 whereas for Sophos, Kerio Control and Endian, we would recommend MNHO-069. (A complete list of supported OS can be found in each product's listing)