SONOFF Dongle Plus MG24 Zigbee Thread USB-Dongle Zigbee2MQTT ZHA EFR32MG24

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Article description:

USB Zigbee 3.0/Thread Gateway

The SONOFF Dongle-PMG24 is a high-performance next-generation Zigbee/Thread USB dongle designed for demanding smart-home users and developers. Powered by the advanced EFR32MG24 SoC with 1536 KB Flash and 256 KB RAM, it offers significantly more processing resources than previous generations, enabling faster automation execution, improved responsiveness, and highly stable device management across large Zigbee networks.

The dongle ships pre-flashed with Zigbee coordinator firmware and can be switched to other roles—such as Zigbee Router, OpenThread RCP or MultiPAN—in under one minute using the SONOFF Dongle Flasher tool. This makes the MG24 an extremely flexible 2-in-1 (Zigbee + Thread) solution for both standard setups and advanced multi-protocol smart-home environments.

Its durable aluminum alloy housing is pressure-resistant, corrosion-resistant and offers a premium, modern appearance. The integrated 3 dBi antenna can be optimized up to 4.5 dBi, achieving wireless ranges of up to 200 meters in open spaces. A 1-meter USB extension cable is included to ensure optimal placement away from USB 3.0 interference sources, providing improved signal stability and coverage.

The Dongle-PMG24 works seamlessly with major open-source platforms—including Home Assistant (ZHA), Zigbee2MQTT, openHAB, ioBroker, Domoticz and Jeedom—and is fully designed for local, cloud-independent operation. With strong community support, high hardware performance and multi-role firmware capabilities, it is an excellent choice for power users, developers and DIY smart-home enthusiasts.

Highlights:

Based on EFR32MG24 – Powered by the advanced EFR32MG24 SoC offering more memory and higher performance for faster automations and stable device management.

Enhanced Antenna Gain – Standard 3 dBi antenna optimized up to 4.5 dBi for stronger signal strength and extended wireless range.

Wide Platform Compatibility – Works seamlessly with Home Assistant, Zigbee2MQTT, openHAB and more—ideal for open-source smart-home ecosystems.

Easy Firmware Flashing – Flash multiple firmware types in under a minute using the SONOFF Dongle Flasher, enabling flexible roles and advanced use cases.

Includes USB Extension Cable – 1 m USB extension cable minimizes interference and allows flexible placement away from noisy USB 3.0 ports.

Technical data:

Model: SONOFF Dongle-PMG24 (Zigbee/Thread USB Dongle Plus MG24)

Radio Chip (SoC): Silicon Labs EFR32MG24 (1536 KB Flash / 256 KB RAM)

Protocols: Zigbee 3.0 (IEEE 802.15.4)

Optional firmware protocols: Zigbee NCP / Zigbee Router / OpenThread RCP / MultiPAN (Thread)

Compatible platforms: Home Assistant (ZHA), Zigbee2MQTT, openHAB, ioBroker, Domoticz, Jeedom

Operating systems: Windows, Ubuntu, Raspberry Pi OS, Docker

Input voltage: 5 V DC / 500 mA

Standby power consumption: approx. 40 mW

Wireless range: up to 200 m (open environment, optimized antenna gain)

Antenna: built-in 3 dBi, optimizable to 4.5 dBi

Output power: up to 20 dBi antenna gain (depending on configuration)

Dimensions: 214 × 18.0 × 10.5 mm

Housing material: Aluminum alloy

Color: Space Grey

Dimensions: compact USB stick form factor

Operating temperature: –10 °C to +60 °C

Humidity: 5–95% RH (non-condensing)

Package contents: Dongle-PMG24, optimized antenna, 1 m USB extension cable

Further information:

Additional:

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