Sonoff Dongle Lite MG21 USB Adapter (Zigbee/Thread)

🌐 Dongle-LMG21: Your Key to Seamless Connectivity

Built on the EFR32MG21 radio chip, the hardware provides a stable Zigbee mesh network, enabling pairing and control of bulbs, switches, and sensors from various brands within a single system.

The hardware dongle works as Plug&Play on Windows, Ubuntu, and Raspberry Pi (including Docker environments), and its external antenna adjustable up to ≤180° provides better range.

Works with Home Assistant, openHAB, and Zigbee2MQTT for local control of all Zigbee devices.

Flexible Flashing for Various Tasks

For advanced users, flashable firmware (Zigbee NCP/Router, OpenThread RCP, MultiPAN) is available, allowing configuration for multiple network roles as needed.

Also supports firmware updates using the Dongle Flasher tool to switch between different open-source platforms.

Pre-installed firmware using the EmberZNet protocol supports adding multiple Zigbee devices.

Acts as a Zigbee network router to strengthen connectivity and improve the stability of Zigbee devices in your home.

Runs the OpenThread protocol stack and works with a Thread Border Router, supporting the connection and control of Matter devices (Matter over Thread).

Thanks to the 2-in-1 Zigbee and OpenThread integration, a single hardware dongle allows you to simultaneously connect and manage both Zigbee and Thread devices.

Ultrasonically Welded Compact Design

The Dongle Lite MG21 features a compact and streamlined design, 65% smaller than the ZBDongle-E, allowing greater flexibility when plugging into various USB ports, or it can be flexibly positioned using the included extension cable.

Powered by EFR32MG21

Stable performance with low power consumption, full utilization of hardware capacity.

Adjustable Antenna

Hidden axis design with adjustable angles, achieving up to 140 m of stable coverage in open spaces.

USB Extension Cable

Comes with a 0.5 m extension cable that minimizes electromagnetic interference for a smoother and more reliable experience.

Comparison of Sonoff Adapters

The table compares 5 Zigbee adapters from SONOFF: Dongle Max (also known as Dongle M), Dongle Plus MG24, Dongle Lite MG21, Dongle Plus E, and Dongle Plus P.

Specifications

• 🖥️ Model: Dongle-LMG21
• 🔲 SoC / Radio: Silicon Labs EFR32MG21
• 🔌 Input: 5V⎓500mA
• 📡 Zigbee: IEEE 802.15.4 (flashable: Zigbee NCP/Router, OpenThread RCP, MultiPAN)
• 🛰️ External Antenna: Adjustable, ≤180°
• 🌡️ Operating Temperature: -10℃~60℃
• 🌧️ Humidity: 5 – 95% RH
• 📐 Dimensions: 133 × 18.6 × 10.1 mm
• 📦 Housing Materials: Aluminum, PC+ABS
• 🔌 USB Extension Cable: 0.5 m
• 🎨 Color: Dark Gray
• 📝 Note: Thread/MultiPAN features require firmware updates; setup is recommended for advanced users.

Package Contents