The SONOFF Dongle Lite MG21 (Dongle-LMG21) provides reliable and stable smart home connectivity powered by the proven EFR32MG21 chip. Engineered with a compact form factor that is 65% smaller than the ZBDongle-E, it fits easily into tight USB ports on hubs, servers, or PCs.
Featuring broad compatibility with open-source smart home platforms such as Home Assistant, Zigbee2MQTT, and openHAB, this Zigbee and Thread adapter streamlines multi-device integration. The device supports straightforward firmware updates via the SONOFF Dongle Flasher tool to switch operating modes as needed. An included USB extension cable ensures versatile placement while reducing electromagnetic interference from nearby USB 3.0 ports.
| Brand | SONOFF |
| Model | Dongle-LMG21 |
| Chipset | EFR32MG21 |
| Connectivity Technology | Zigbee, Thread |
| Supported Platforms | Home Assistant, Zigbee2MQTT, openHAB |
| Firmware Flashing | SONOFF Dongle Flasher tool |
| Weight | 43 g |
| Included Accessories | USB Extension Cable |
























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