Home Assistant Connect ZBT-2 Zigbee and Thread USB adapter

Kickstart your smart home easily with Home Assistant Connect ZBT-2!

The smart adapter Home Assistant Connect ZBT-2, featuring a USB gateway with a precisely tuned antenna and the MG24 chip, delivers long range, peak performance, and instant pairing for Zigbee 3.0 and Thread devices. Stability and speed are guaranteed even in demanding networks.

The second-generation Connect platform is open and maker-friendly—easy to disassemble, allows modifications, and supports seamless migration.

Thanks to the Home Assistant guide, setup is plug-and-play, and you gain broad compatibility with ZHA, Zigbee2MQTT, and OpenThread Border Router.

Key Features:

• Plug-and-play Zigbee & Thread for Home Assistant—no hubs, no hassle.
• Tuned antenna + MG24 radio = long range and rock-solid stability.
• Migrate your old network in minutes using the built-in guide.
• 4× faster response than our first-generation adapter.
• Works great with ZHA, Zigbee2MQTT, and OpenThread Border Router.
• Add Matter-over-Thread devices without needing to change settings.
• USB-C powered, compact design, and near-silent operation.
• Open, maker-friendly hardware with accessible pads and pins.
• OTA updates keep your Zigbee and Thread devices current.
• Supports all 2.4 GHz regions—ready for worldwide deployment.
• Reduce the number of hubs and manage everything directly in Home Assistant.
• Built by the team advancing Home Assistant—reliability you can trust.

Why Choose It

• Optimized antenna for reliable Zigbee/Thread coverage.
• Faster response times - up to 4× compared to the first generation.
• Uncompromised performance with MG24 and ESP32-S3 bridge.
• Easy setup and migration thanks to the HA guide.
• Network choice - launch Zigbee or Thread in minutes, connect Matter-over-Thread.
• Open design - unlocked, open-source friendly, accessible pins.
• Broad compatibility - ZHA, Zigbee2MQTT, and OTBR.

Typical Usage

• Consolidating multiple hubs into a single coordinator in Home Assistant.
• Adding proven Zigbee sensors and lights alongside new Matter-over-Thread devices.
• Upgrading from an older dongle with smooth network migration.

Home Assistant Connect ZBT-2 Technical Specification:

• Model: NC-ZBT-9741
• Certifications: CE, FCC, RCM
• FCC-ID: 2A8ZE04
• Origin: Made in China

Radio and Protocols

• Support: Zigbee 3.0, Thread (OpenThread Border Router)
• Regions: All Zigbee/Thread regions and 2.4 GHz channels
• Matter: Works with Matter-over-Thread devices in Home Assistant

Chipset

• Silicon Labs MG24 (Zigbee/Thread radio)
• ESP32-S3 (USB-serial bridge)

Antenna Parameters

• Band: 2400–2483.5 MHz
• Peak Gain: 4.16 dBi
• Output Power: 10 dBm (EU), 8 dBm (rest of the world)
• Radiation: Omnidirectional
• Dimensions: Ø 24 mm × 164 mm
• Note: Range is affected by placement and building materials.

Power and Connection

• Connector: USB-C
• Input: 5 V DC, 500 mA

Device Properties

• Dimensions & Weight: 83 × 83 × 179 mm, 157 g
• Packaging: 227 × 168 × 42 mm, 350 g
• Material: Polycarbonate; colors: white and semi-transparent

Environment

• Use: Indoors only
• Temperature: 0 °C to 65 °C (Antenna −40 °C to +85 °C)
• Humidity: Non-condensing
• Recommendation: Keep dry, free of excessive dust; do not expose to direct sunlight or heat sources.

Package Contents

• External antenna with stand
• USB cable 1.5 m (USB 2.0/3.0)
• Quick start guide