SONOFF Zigbee 3.0 USB Dongle Plus is pre-flashed with Zigbee coordinator firmware. Plug it into the computer/Raspberry Pi, you can use it as a Zigbee coordinator in smart home open source platforms such as Home Assistant, openHAB, etc. Also, you can reflash the firmware and use it as a router to extend the network range.【Pre-Flashed for Immediate Use】: Comes ready with Zigbee coordinator firmware (EZNet 6.10.3) pre-installed, allowing for immediate setup and integration without the need for an initial flashing process.【High-Power Chipset with Extended Range】: Powered by the EFR32MG21 chipset and a high +20dBm output gain, providing a strong, reliable signal and improved wireless coverage for a more stable Zigbee network.【Broad Smart Home Platform Compatibility】: Offers wide support for popular open-source platforms such as Home Assistant, Zigbee2MQTT, and openHAB, ensuring easy integration into most existing smart home ecosystems.【Shielded Aluminum Housing】: Durable aluminum enclosure helps minimize electromagnetic interference from nearby devices.【Versatile and User-Friendly Firmware Management】: Allows for quick and easy firmware updates or changes to other device types (e.g., Zigbee2MQTT) in under a minute using the dedicated Dongle Flasher Web tool or Add-on, offering great flexibility.