The Sonoff Zigbee 3.0 USB Dongle Plus ZBDongle-E is a Zigbee 3.0 USB adapter that allows you to create a Zigbee hub using your computer, Raspberry Pi, or other devices running compatible smart home software (like Home Assistant or Zigbee2MQTT).
It provides an easy way to integrate Zigbee devices into your existing smart home setup without needing a separate Zigbee bridge.