Silicon Labs EFR32MG21 Zigbee 30 USB Dongle Home Assistant

Product information:

If the device is following Zigbee standards it is possible it will work with other gateway solutions, it is just not confirmed as working yet!

1、Pre-flashed with EZSP v8 (EmberZNet Serial Protocol version 8)

2、Can use ZHA in Home Assistant or Zigbee2MQTT (pre-alpha)

3、Base on EFR32MG21+CH340E

4、+20dBm output gain，PCB antenna 

5、Plastic Shell

6、Support OTA Via Uart (Press the BOOT button,then press and release the nRST button, fiannaly release the BOOT button)

7、Baud rate ：115200

Silicon Labs EFR32MG21 Zigbee 3.0 USB Dongle – Smart Home Gateway for Home Assistant

Upgrade your smart home setup with the Silicon Labs EFR32MG21 Zigbee 3.0 USB Dongle, a powerful and reliable Zigbee coordinator designed for seamless integration with Home Assistant, Zigbee2MQTT, and other open-source platforms. This compact USB dongle acts as the central hub for connecting and managing all your Zigbee-enabled devices, giving you full control over your smart home from one unified interface.

Built with Silicon Labs’ high-performance EFR32MG21 chipset, this dongle provides excellent range, low latency, and stable network communication for homes, offices, and automation systems.

Reliable Zigbee 3.0 Connectivity

Powered by the EFR32MG21 SoC, this dongle supports the Zigbee 3.0 protocol, ensuring wide compatibility with popular Zigbee devices such as sensors, smart bulbs, switches, plugs, and thermostats.

Its strong signal stability and extended communication range make it ideal for large homes or setups with multiple connected devices. You’ll enjoy fast, secure, and energy-efficient communication between your smart home devices without interference or connection drops.

Plug-and-Play USB Interface

The Zigbee 3.0 USB Dongle is designed for easy installation and driver-free operation. Simply plug it into your Raspberry Pi, mini PC, NAS, or desktop, and it instantly becomes a Zigbee gateway for your home automation network.

It works seamlessly with Home Assistant SkyConnect, Zigbee2MQTT, ZHA (Zigbee Home Automation), and other smart home controllers — no additional configuration required.

With its plug-and-play convenience, you can set up your entire Zigbee network within minutes.

Wide Compatibility with Smart Home Platforms

Whether you’re using Home Assistant, Zigbee2MQTT, or OpenHAB, this dongle is compatible with a wide range of smart home ecosystems. It allows you to integrate devices from different brands into a single, unified system — including Philips Hue, IKEA TRÅDFRI, Sonoff, Aqara, Tuya, and more.

This flexibility ensures you can customize and expand your home automation system without being limited by brand restrictions.

High Performance and Long-Range Communication

The EFR32MG21 chipset features a high-performance 2.4GHz radio transceiver with exceptional sensitivity and low power consumption. Combined with an external antenna, the dongle offers superior range and signal penetration, covering multiple floors and large spaces with ease.

It ensures fast response times and stable mesh network performance, allowing all your devices to stay connected even if one node fails — keeping your smart home running smoothly.

Compact, Durable, and Efficient Design

Crafted from high-quality materials, the Silicon Labs Zigbee USB Dongle is built for long-term use and consistent reliability. Its compact and lightweight form factor allows for flexible placement, while the efficient cooling design ensures optimal performance even under continuous operation.

This makes it a perfect fit for DIY home automation enthusiasts, tech hobbyists, and professional smart home installers alike.

Secure and Stable Operation

The dongle supports AES-128 encryption for all Zigbee communications, ensuring your smart home network remains private and secure. It also offers firmware upgradability, allowing users to update and maintain compatibility with the latest Zigbee standards and firmware improvements.

This means your investment remains future-proof as new smart home technologies evolve.

Key Features

• Silicon Labs EFR32MG21 Zigbee 3.0 chipset
  
• Compatible with Home Assistant, Zigbee2MQTT, ZHA, OpenHAB
  
• Plug-and-play USB interface with no driver installation required
  
• Supports wide range of Zigbee devices from major brands
  
• Long-range wireless communication and strong network stability
  
• AES-128 encryption for secure data transmission
  
• Compact and durable design with efficient cooling
  
• Ideal for smart home automation and IoT projects
  

Build Your Smart Home with Confidence

The Silicon Labs EFR32MG21 Zigbee 3.0 USB Dongle gives you everything you need to create a fast, stable, and secure Zigbee network. With its high-performance chip, simple setup, and wide compatibility, it’s the perfect tool to unlock the full potential of your smart home system.

Enjoy total control, energy efficiency, and seamless automation — all powered by one reliable USB dongle.