Home Assistant Connect ZBT-2 (Zigbee and Thread USB adapter)

Home Assistant Connect ZBT-2 – Zigbee & Thread USB Adapter
The Home Assistant Connect ZBT-2 is a high-performance USB adapter designed to build a powerful Zigbee 3.0 or Thread mesh network in your smart home. Featuring up to 4× faster performance compared to the first-generation ZBT, a precision-tuned 4.16 dBi antenna for enhanced coverage, and the advanced Silicon Labs MG24 chipset, this adapter is ready for modern smart home demands. 
It supports seamless migration from existing Zigbee ecosystems (e.g., ZHA, deCONZ, Zigbee2MQTT), full Thread support, and opens the door to future-proof Matter devices. 

Key Features

• Dual-protocol support for Zigbee 3.0 and Thread – choose whichever fits your network best. 

• Up to 4× faster response compared to the ZBT-1 adapter. 

• High-performance external antenna (4.16 dBi) ensures stronger, more reliable connectivity and extended range. 

• USB-C interface, sleek compact design, one-click firmware updates and intuitive setup. 

• Open design friendly to enthusiasts: integrates with ZHA, Zigbee2MQTT, OpenThread Border Router and is ideal for building a unified smart home network. 

Technical Specifications

• Model: NC-ZBT-9741 

• Chipset: Silicon Labs MG24 (Zigbee/Thread radio) 

• Interface: USB-C 

• Antenna gain: 4.16 dBi 

• Frequency band: 2400–2483.5 MHz (2.4 GHz) 

Includes

• ZBT-2 USB adapter

• External antenna

• USB cable

• Quick start guide

Ideal For

• Users running Home Assistant who want to connect Zigbee and/or Thread devices in a unified system.

• Upgrading to a future-proof smart home setup that supports Matter-over-Thread and other advanced protocols.

• Larger homes, complex installations, or scenarios where superior wireless coverage and mesh performance matter.