Home Assistant Connect ZBT-2 Zigbee 3.0 Thread USB Adapter EFR32MG24 ESP32-S3

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The easiest way into the world of Zigbee & Thread

The new Home Assistant Connect ZBT-2 makes it easier than ever to get started with Zigbee or Thread. Thanks to a precisely tuned antenna and the latest MG24-generation chipset, it offers excellent radio performance and exceptional stability.

Based on the open second Connect platform, the ZBT-2 is more powerful, versatile, and better integrated into the home.

Setup and migration take just a few minutes – and you benefit from the full power of Home Assistant, completely without the cloud and with maximum control.

The Connect ZBT-2 connects a variety of devices from the world of Zigbee, Thread, and Matter directly to Home Assistant – without any additional hub.

It is fully open, updatable, and equally interesting for hobbyists and smart home professionals.

Features & Benefits

📡 Optimized Antenna: Provides the best possible connection to Zigbee or Thread devices – even over longer distances.

⚡ Higher Response Speed: Up to 4× faster response times compared to the first generation.

🚀 Maximum Performance: The new MG24 chip ensures the highest stability and performance in daily operation.

🆕 Open Platform: Second Connect generation – open, more powerful, and aesthetically unobtrusive in design.

🛠️ Made for Tinkerers: Completely open, without clips or glue, with accessible pads and pins for your own projects.

🔌 Plug-and-Play: Migration of existing Zigbee or Thread networks via the Home Assistant setup assistant.

🌐 Free Network Choice: Start a new Zigbee or Thread network within minutes.

🧩 Less Device Chaos: Replaces multiple hubs and connects Zigbee, Matter, and Thread devices directly to Home Assistant.

🌎 Wide Device Support: Compatible with proven Zigbee products and the latest Matter devices.

🔗 Maximum Compatibility: Supports ZHA, Zigbee2MQTT, and OpenThread Border Router.

✅ Reliable to the Detail: Developed by the team behind Home Assistant – with regular OTA updates.

📦 Scope of Delivery: Antenna, base, 1.5 m USB cable (USB 2.0 / 3.0), and quick start guide.

Technical Data

Product:

Model Number: NC-ZBT-9741

Compliance: CE, FCC, RCM

FCC ID: 2A8ZE04

Origin: Made in China

Product Details:

SoCs: Silicon Labs MG24, ESP32-S3 (USB Serial Bridge)

Power Supply and Data: USB-C, 5 V DC, 500 mA

Supported Protocols: Zigbee 3.0, Thread

Antenna Properties:

Note: Different building materials and the placement of the device can affect radio range.

Frequency Range: 2400 – 2483.5 MHz

Peak Gain: 4.16 dBi

Transmit Power: 10 dBm (EU), 8 dBm (Rest of the World)

Radiation Pattern: Omnidirectional

Antenna Dimensions: 24 mm diameter, 164 mm height

Device Properties:

Dimensions and Weight: 83 × 83 × 179 mm, 157 g | Packed: 227 × 168 × 42 mm, 350 g

Housing Material: Polycarbonate plastic

Colors: White and semi-transparent

Environmental Conditions:

Operating Range: Indoor use only

Operating Temperature: 0 °C to +65 °C (Antenna -40 °C to +85 °C) / 32 °F to 149 °F

Humidity: Non-condensing

Recommendation: Use in a dry, dust-free environment and avoid direct sunlight or heat sources.