---
title: Zebra ZT421 Thermal Transfer Lable Printer - 300 dpi, Serial, USB, Ethernet, Bluetooth 4.1
date: 2026-03-18T21:49:35Z
modified: 2026-06-14T13:34:46Z
permalink: "https://tech.co.za/product/zebra-zt421-thermal-transfer-lable-printer-300-dpi-serial-usb-ethernet-bluetooth-4-1/"
type: product
status: publish
excerpt: Constructed with an all-metal frame and bi-fold door, ZT421 printers deliver advancements in print speed, registration and connectivity as well as additional advanced features.
wpid: 574791
product_brand:
  - Zebra
product_type:
  - simple
product_visibility:
  - outofstock
product_cat:
  - Label Printers
  - Printers & Consumables
featured_image: "https://tech.co.za/wp-content/uploads/2024/02/Zebra-ZT421a.jpg"
---

Keep your customers' mission-critical operations running efficiently with the ZT400 Series printers. Constructed with an all-metal frame and bi-fold door, ZT400 Series printers deliver advancements in print speed, registration and connectivity as well as additional advanced features. ZT400 printers feature USB, Serial, Ethernet and Bluetooth® connectivity along with expanded RFID capabilities as well as monochrome and color display options. Plus, with Zebra's Link-OS® environment, an innovative operating system, your customer can easily integrate, manage and maintain these printers from anywhere in the world.

### Key features

- Multiple connectivity options, including the latest Wi-Fi. The ZT421 RFID comes standard with Ethernet, USB, USB Host, and Bluetooth 4.1. Add the optional dual-band wireless card with 802.11ac Wi-Fi and its latest security protocols, plus Bluetooth 4.1, for blazing fast and reliable wireless connections.
- You can count on the ZT421 to print a variety of different label formats on a variety of different media types.
- The side-loading supplies path makes loading simpler, faster and more intuitive. The color-coded media path guides the user on how to thread the media and ribbon through the printer, while lighted paths make it easy to see, even in poorly lit environments.
- Constructed using a bi-fold door, these printers are designed to easily fit in space-constrained environments.
- Print DNA’s innovative applications, utilities and developer tools deliver a superior printing experience through better performance, simplified remote manageability and easier integration.

[Download spec sheet (PDF)](https://www.zebra.com/content/dam/zebra_dam/en/spec-sheets/zt400-series-spec-sheet-en-us.pdf)