Home Assistant Connect ZBT-2
Home Assistant Connect ZBT-2
📘 Setup / Configuration Guide: Click here
Overview
The Home Assistant Connect ZBT-2 is the latest official Zigbee or Thread USB adapter from Nabu Casa, designed for high-performance, low-latency smart home networks.
Powered by the Silicon Labs MG24 chipset with an optimised high-gain antenna, it delivers fast, stable, and responsive Zigbee or Thread communication for Home Assistant.
Built for reliability, open standards, and easy integration, the ZBT-2 is the recommended adapter for Home Assistant Green, Yellow, Raspberry Pi, and any system running Home Assistant OS or supervised.
Key Features
-
4× faster performance than ZBT-1
(460800 baud vs 115200 baud) -
Zigbee 3.0 or Thread → choose one at setup
(Not multiprotocol; one network per device for reliability) -
Powered by Silicon Labs MG24 high-performance SoC
-
Optimised 4.16 dBi high-gain omnidirectional antenna
-
Plug-and-play with Home Assistant
Automatic detection, automatic firmware updates -
Supports ZHA, Matter.js Thread, and Zigbee2MQTT
-
Fully unlocked, open design — easy to open and inspect
-
Compatible with Matter via Thread (Home Assistant is Matter-certified)
-
USB-C powered for simple installation
Technical Specifications
Product Details
| Item | Details |
|---|---|
| Model | Home Assistant Connect ZBT-2 |
| SoCs | Silicon Labs MG24, ESP32-S3 USB bridge |
| Power / Data | USB-C, 5 V DC, 500 mA |
| Supported Protocols | Zigbee 3.0, Thread |
| Compatibility | Home Assistant OS, ZHA, Matter.js, Zigbee2MQTT |
Antenna & Wireless Performance
| Item | Details |
|---|---|
| Frequency Range | 2400–2483.5 MHz |
| Peak Gain | 4.16 dBi |
| Transmit Power | 10 dBm (EU) / 8 dBm (ROW) |
| Radiation Pattern | Omnidirectional |
| Antenna Size | Ø 24 mm × 164 mm height |
Environmental Requirements
| Item | Details |
|---|---|
| Operating Temperature | 0 °C to 65 °C (antenna –40 °C to +85 °C) |
| Humidity | Non-condensing |
| Use | Indoor only |
| Notes | Keep away from heat, direct sunlight, and dust |
Dimensions & Weight
| Item | Details |
|---|---|
| Device | 83 × 83 × 179 mm — 157 g |
| Box | 227 × 168 × 42 mm — 350 g |
| Material | Polycarbonate, white & semi-transparent |
Installation Notes
-
Choose either Zigbee or Thread during setup
(The ZBT-2 does NOT support running both simultaneously — no MultiPAN) -
Ideal for Home Assistant Green/Yellow or Raspberry Pi running Home Assistant OS
-
Highly recommended adapter for Zigbee2MQTT (stable and well supported)
-
For best performance, place the unit:
-
Away from Wi-Fi routers
-
Not behind metal cabinets
-
On a desk or shelf with the antenna upright
-
-
Supports full network migration from ZBT-1 or other adapters
In the Box
-
Home Assistant Connect ZBT-2 Base Unit
-
High-gain antenna
-
1.5 m USB-C cable (USB 2.0/3.0 compatible)
-
Quickstart Guide
-
Warranty & Safety Information