Zigbee 3.0 USB Coordinator – ZBT-1 / ZBT-2 Alternative, Home Assistant Ready (Plug & Play)
Why choose this over the official ZBT-1 / ZBT-2?
You get the same Zigbee functionality and integration support at a lower cost — without compromising compatibility or reliability.
Overview
This Zigbee 3.0 USB Coordinator is a cost-effective alternative to the Home Assistant Connect ZBT-1 and ZBT-2, built around the Silicon Labs EFR32MG21 chipset and supplied with a high-gain detachable antenna for improved wireless performance.
It is designed for seamless use with Home Assistant and works out of the box with both ZHA and Zigbee2MQTT, providing the same core Zigbee coordinator functionality as official hardware at a significantly lower cost. Firmware updates can be managed through Home Assistant, allowing long-term maintainability and flexibility.
Key Features
• Zigbee 3.0 compliant USB coordinator
• Direct ZBT-1-class alternative for Home Assistant
• EFR32MG21 wireless chipset
• Compatible with ZHA and Zigbee2MQTT
• Firmware updates supported via Home Assistant
• High-gain 5dBi detachable antenna
• Up to 20dBm output power
• USB plug-and-play installation
• CE, FCC, and RoHS certified
Technical Specifications
Wireless Protocol
Zigbee 3.0
Frequency
2.4GHz ISM band
Chipset
Silicon Labs EFR32MG21
Output Power
Up to 20dBm
Antenna
5dBi detachable antenna
Input
5V DC (USB), ≤100mA
Operating Temperature
-20°C to 60°C
Dimensions
59 × 18 × 10 mm
Installation / Application Notes
• Plug directly into your Home Assistant host or via a USB extension cable
• USB extension cable recommended to minimise RF interference
• Works with Home Assistant OS, Supervised, and Container installations
• Supports ZHA and Zigbee2MQTT integrations
• Designed for indoor use
• Ideal for smart lights, sensors, switches, plugs, and other Zigbee devices
Thread Note:
This device ships configured as a Zigbee coordinator. While the hardware is capable of running Thread firmware, Thread Border Router functionality is not enabled by default and requires manual firmware changes. Recommended for advanced users only.
In the Box
• Zigbee 3.0 USB Coordinator ×1
• Detachable high-gain antenna ×1