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. SmarterHOME+1
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. home-assistant.io

Key Features

• Dual-protocol support for Zigbee 3.0 and Thread – choose whichever fits your network best. home-assistant.io+1

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

• High-performance external antenna (4.16 dBi) ensures stronger, more reliable connectivity and extended range. SmarterHOME+1

• USB-C interface, sleek compact design, one-click firmware updates and intuitive setup. home-assistant.io+1

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

Technical Specifications

• Model: NC-ZBT-9741 SmarterHOME

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

• Interface: USB-C SmarterHOME

• Antenna gain: 4.16 dBi SmarterHOME

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

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.