The Sonoff Dongle-M, also known as the Dongle Max, is a versatile network gateway designed to integrate Zigbee 3.0 and Thread devices into your smart home. Built around an ESP32D0 microcontroller and an EFR32MG24 radio chip, it supports MultiPAN firmware, which allows you to manage both protocols simultaneously. You can configure the device to operate as a coordinator, a router, or a radio co-processor, making it a flexible choice for those using Home Assistant or Zigbee2MQTT. Connectivity is handled through a variety of options, including a USB Type-C port, a 2.4GHz Wi-Fi connection, and an RJ45 Ethernet LAN port. This versatility extends to its power supply, as the device can be powered either via the USB port with 5V 1A or through Power over Ethernet (PoE) at 48V 0.25A, which simplifies installation by reducing the need for nearby power outlets. Two external antennas help maintain a stable signal across your home, while the dim gray housing combines aluminum with PC+ABS materials for a durable finish. An integrated web interface allows you to handle firmware updates and mode settings directly, and the hardware is rated to operate in temperatures ranging from -10°C to 60°C.