Home Assistant Connect ZBT-2 Zigbee

The Home Assistant Connect ZBT-2 is the official next-generation USB adapter from Nabu Casa, designed to deliver the easiest, most reliable way to add Zigbee, Thread, and Matter devices directly to your Home Assistant setup. This powerful dongle upgrades your smart home network with superior range, speed, and stability—perfect for expanding Zigbee ecosystems or stepping into the future of Matter-over-Thread connectivity.
Featuring a precisely tuned, high-gain external antenna and the advanced Silicon Labs MG24 radio chip, the Connect ZBT-2 offers up to 4x faster performance than the previous ZBT-1 (SkyConnect), with enhanced RF sensitivity for stronger, more dependable connections—even in challenging environments.
Plug it into any USB-C port on your Home Assistant hardware (Green, Yellow, Pi, or server), follow the intuitive one-click setup wizard, and you're ready to connect hundreds of Zigbee sensors, bulbs, switches, or Thread/Matter devices locally—no cloud dependency, no extra hubs required.
Key Features & Benefits
Dual-Protocol Support (Zigbee or Thread) — Choose Zigbee 3.0 for massive device compatibility or Thread for Matter-enabled, low-power battery devices; dedicate the adapter to one protocol for optimal performance (not simultaneous multiprotocol).
Optimized High-Gain Antenna — Large, omnidirectional external antenna (4.16 dBi peak gain, 164mm height) provides exceptional range and signal strength—far superior to tiny internal antennas; no need for USB extensions in most cases.
Blazing-Fast & Responsive — Silicon Labs MG24 SoC with 4× higher baud rate (460,800 bps vs. 115,200 bps) delivers quicker responses, better weak-signal handling, and smoother network operations.
Matter & Thread Border Router Ready — Acts as a Thread Border Router to connect Thread-based Matter devices securely and locally; fully certified and integrated with Home Assistant's Matter and Thread integrations.
Open & Hackable Platform — Fully open-source design with accessible pads/pins, no glue/clip construction—ideal for developers, custom firmware flashing (e.g., Zigbee NCP, OpenThread), or community experiments.
Plug-and-Play Setup — USB-C powered (5V DC, 500mA), automatic detection in Home Assistant, guided wizard for flashing firmware and configuring Zigbee (ZHA/Zigbee2MQTT) or Thread.
Compact & Reliable Build — Sleek, durable design with indicator light; frequency range 2400–2483.5 MHz, transmit power up to 10 dBm (EU)/8 dBm (worldwide).
Perfect for:
Home Assistant users expanding Zigbee networks with better coverage and speed
Early adopters building Matter ecosystems using Thread for battery-powered sensors and locks
Privacy-focused smart homes wanting fully local control over Zigbee, Thread, and Matter devices
Tinkerers and developers seeking an open, upgradable radio for custom integrations
Replacing older coordinators (like Conbee, Sonoff, or ZBT-1) with top-tier performance
Elevate your Home Assistant smart home with the Home Assistant Connect ZBT-2—the fastest, most capable Zigbee/Thread adapter available, built by the community for the community.