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Item #:
191018885
SONOFF Zigbee 3.0 & Thread Dongle Lite (EFR32MG21) | USB Stick Coordinator for Home Assistant & Zigbee2MQTT | Compact Gateway with Easy Firmware
Item #:
191018885
XCD 98
Price Details
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Imported from USA store
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Order now and get it around Monday, August 17
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Built with the proven EFR32MG21 chipset, this USB dongle offers low-latency communication and excellent compatibility with Zigbee 3.0 devices—ideal for building a dependable smart-home network.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Versatile Compatibility
Supports both Zigbee 3.0 and Thread protocols, making it a versatile choice for users seeking seamless integration with various smart home devices and platforms like Home Assistant and Zigbee2MQTT.
User-Friendly Design
The compact USB stick form factor allows for easy placement and connectivity, while the included extension cable ensures simple access to unblocked USB ports for optimal performance.
Easy Firmware Updates
Designed for hassle-free firmware flashing, enabling users to keep their devices updated with the latest features and security enhancements without complicated procedures.
Product Details
| Hardware Interface | Micro USB 3.0 Type B |
| Compatible Devices | Desktop |
| Data Link Protocol | USB |
| Compatible Operating System Family | Linux, Windows |
| Minimum Required Operating System Version | Mac OS 12 Monterey, Ubuntu 22.04 Jammy Jellyfish, Windows 10 |
| Item Weight | 0.04 Kilograms |
| Color | Black |
| Brand | SONOFF |
| Manufacturer | SONOFF |
| Mfr Part Number | Dongle-LMG21 |
| Model Number | Dongle-LMG21 |
| Built-In Media | User manual |
| Number of Items | 1 |
Who Should Buy?
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Home Automation Users
Ideal for users seeking to integrate Zigbee devices into their Home Assistant or Zigbee2MQTT setups.
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Tech Enthusiasts
Perfect for those who enjoy custom firmware flashing and expanding their smart home ecosystem flexibly.
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Space Savers
Compact design makes it suitable for users with limited USB ports or desk space, ensuring easy deployment.
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Non-Technical Users
Beginners might find setting up and flashing firmware challenging without prior technical knowledge.
Product Description
SONOFF Zigbee 3.0 & Thread Dongle Lite (EFR32MG21) | USB Stick Coordinator for Home Assistant & Zigbee2MQTT | Compact Gateway with Easy Firmware Flashing & Extension Cable
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Is this dongle compatible with my existing smart-home devices?
Answer: Yes, it supports a wide range of Zigbee 3.0 brands including Philips Hue, Aqara, and IKEA Tradfri. -
Question:
How do I flash firmware on the dongle?
Answer: You can switch modes by flashing firmware through the SONOFF Dongle Flasher or other official Add-on tools. -
Question:
Does the dongle come with anything for better positioning?
Answer: Yes, it includes a USB extension cable to help position the dongle away from interference sources.
SONOFF USB Network Adapters Dongle-LMG21 Editorial Review
The SONOFF Zigbee 3.0 & Thread Dongle Lite has garnered generally positive feedback from users, highlighting its versatility, ease of integration, and affordability. Many customers appreciate its capability to function as a Thread border router with various IKEA Thread devices, providing a stable connection throughout homes that can span up to 2000 square feet. Users note that the dongle supports multiple firmware settings, allowing for a customized experience with Home Assistant and Zigbee2MQTT, enhancing its range of functionality. A standout feature is the inclusion of an extension cable that mitigates potential USB 3.0 interference, improving overall performance. Customers have also found the device compact, making it an ideal choice for those looking to save space without sacrificing performance. However, some users do report challenges with the initial setup, particularly when configuring it as a Thread border router. Although it's been stated that resources are available online to assist with this aspect, the complexity may be a deterrent for those less tech-savvy. Additionally, the antenna's limited rotational flexibility has been noted as a drawback, potentially affecting optimal placement in some scenarios. In summary, the SONOFF Zigbee 3.0 & Thread Dongle Lite is an affordable and effective solution for smart home enthusiasts looking to integrate Zigbee and Thread protocols seamlessly into their systems. While there may be minor hurdles in setup, the overall performance and range have left many users satisfied with their purchase. **
Customer Reviews & Ratings
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Pros
- Great compatibility with IKEA Thread devices and Home Assistant
- Comes with an extension cable to minimize USB 3.0 interference
- Easy firmware flashing for Zigbee, Thread, or Multi-PAN
- Affordable price point under $20
- Impressive range in a 2000 sq ft house
- Compact design, easy to fit in various setups
Cons
- Setup can be somewhat complicated for Thread border routing compared to Zigbee Home Automation (ZHA)
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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XCD 98
Order now and get it around Monday, August 17
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Proven EFR32MG21 chipset for reliable performance.
- Designed for low-latency communication.
- Compatible with various Zigbee 3.0 devices.
- Compact design fits crowded USB ports.
- Flexible firmware flashing for versatile applications.
- Includes USB extension cable for improved signal strength.
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