SONOFF Dongle Plus MG24 (USB Dongle) – Zigbee / Thread adapter
The Dongle Plus MG24 is an advanced USB dongle solution designed to integrate Zigbee and Thread networks. It is built on the high-performance EFR32MG24 chipset (1536 kB Flash, 256 kB RAM), enabling fast automation execution and stable sub-device control. The dongle features an external antenna (~3 dBi, optimizable up to ~4.5 dBi) providing up to ~200 m range in open line-of-sight conditions. It is compatible with platforms such as Home Assistant, Zigbee2MQTT, openHAB. A 1 m USB extension cable is included to position the dongle away from interference sources. The housing is made of aluminum alloy for professional installation environments. The dongle can operate as a Zigbee coordinator, Zigbee router or OpenThread RCP (MultiPAN) — all in one device.
Technical specifications:

• Model: Dongle-PMG24

• Chipset (SoC): EFR32MG24 (1536 kB Flash, 256 kB RAM)

• Antenna: External ~3 dBi (optimizable to ~4.5 dBi)

• Range (line-of-sight): up to ~200 m

• Interface: USB (5 V) plus 1 m USB extension cable

• Wireless protocols: IEEE 802.15.4 / Zigbee 3.0 / OpenThread (flashable)

• Enclosure: Aluminum alloy (professional design)

• Operating temperature: –10 °C to +60 °C
  Summary:
  This is a perfect solution for users building a robust and high-performance smart home network with Zigbee and Thread support, seeking local standalone control without cloud dependency, and looking for one compact dongle with extensive capabilities.