Sonoff Lite MG21 Zigbee/Tread USB Dongle - Black

The SONOFF Dongle Lite MG21 (Dongle-LMG21) is a compact USB Zigbee/Thread dongle designed to bring reliable smart-home connectivity to open-source platforms like Home Assistant, Zigbee2MQTT, and openHAB. Built around the EFR32MG21 chipset, it supports easy firmware flashing so you can run it as a Zigbee coordinator, Zigbee router, or OpenThread (Matter over Thread) device, and it includes a 0.5 m USB extension cable for flexible placement and reduced USB 3.0 interference.

Product Features

• EFR32MG21 chipset for reliable, stable performance
• Compact USB design — 65% smaller than ZBDongle-E for easier fitment in crowded USB ports
• Wide platform compatibility: works with Home Assistant, Zigbee2MQTT, and openHAB
• Easy firmware flashing using the SONOFF Dongle Flasher to switch operating modes
• USB extension cable included (0.5 m) to improve placement and help reduce USB 3.0 interference
• Adjustable antenna with claimed up to 140 m stable coverage in open spaces
• Zigbee Coordinator (pre-installed EmberZNet stack) to add and manage multiple Zigbee devices
• Zigbee Router mode to strengthen your Zigbee mesh and improve stability
• OpenThread mode (requires a Thread Border Router) for Matter over Thread device connectivity
• Zigbee + OpenThread “2-in-1” integration to manage Zigbee and Thread devices on a single dongle