1.SONOFF Zigbee 3.0 USB Dongle is a universal Zigbee USB stick. It can be used as a universal Zigbee gateway in Home Assistant or other open-source platforms via ZHA or Zigbee2MQTT to locally control all your Zigbee sub-devices, so you don't need to invest in the Zigbee hubs for different brands, all you need is a universal gateway - Dongle Plus!<br> 2.The dongle plus has a wide range of supported devices, such as BASICZBR3, S31 Lite zb, SNZB01, SNZB02, SNZB03, SNZB04, ZBMINI, S26R2ZB , and various sub-devices from various brands or flash router firmware to extend the network range.<br> 3.The limits of ZBDongle are 21 direct sub-devices and up to 40 sub-devices (Default values from official firmware). Supported to connect more by configurating yourself.<br> *Updated version (in the near future) will be supported to work with maximum 200 sub-devices<br> Specifications:<br> Pre-flashed with Z-Stack 3.x.0 coordinator firmware<br> Can use ZHA in Home Assistant or use Zigbee2MQTT<br> Base on TI CC2652P CP2102N<br> 20dBm output gain<br> SMA interface external antenna<br> Aluminum housing effectively reduces signal interference from peripherals<br> Optional 1.5m USB extension cable for better signal range<br> Package Included:<br> 1*SONOFF Zigbee 3.0 USB Dongle E