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Product Code: PTHO-013
MPN #: ZD4AH42-D0EE00EZ
Tired of slow, unreliable label printers that keep your line waiting? The Zebra ZD421 is a compact, fast, and secure direct-thermal printer that lets you print sharp barcodes and receipts in seconds. It solves the frustration of missed deadlines and costly re-prints, giving you a tool that works every day without fuss.
Many small businesses struggle with printers that jam, require complex setup, or cannot connect to mobile devices. When a printer fails, orders are delayed and customers become unhappy. The ZD421 removes those worries by offering a simple plug-and-play experience, fast 152 mm per second printing, and both wired and Bluetooth Low Energy connections. You get reliable output, easy management, and the freedom to print from a phone or computer.
| Printing | |
| Maximum printing width | 10.4 cm |
| Print speed | 152 mm/sec |
| Print speed | 152 mm/sec |
| Print speed | 152 mm/sec |
| Number of printable dots | 8 dot |
| Maximum resolution | 203 x 203 DPI |
| Print technology | Direct thermal |
| 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 | Yes |
| 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, White |
| 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 | |
| Weight | 1.35 kg |
| Height | 150.7 mm |
| Depth | 220.8 mm |
| Width | 177.5 mm |
| Other features | |
| Maximum resolution | 203 x 203 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)