Dongle-E can act as a Zigbee 3.0 gateway in an open source automation platform to manage different sub-devices of different brands or flash router firmware to extend network range. Pre-flashed Z-Stack 3.x, 0 coordinator firmware, can use ZHA in Home Assistant or use Zigbee2MQTT,based on TI EFR32MG21 + CH9102F,+20dBm output gain. The dongle plus supports various sub-devices or router firmware of different brands to extend the network range. The official firmware supports 21 sub-devices by default, and supports up to 40 sub-devices. You can change the relevant configuration to support up to 100 sub-devices. Input power supply: 5V1A Support for connecting devices: Home Assistant (box&computer) Working temperature: -10 ℃-50 ℃; Working humidity: 95% RH; Installation method: USB Dongle-E can act as a Zigbee 3.0 gateway in an open source automation platform to manage different sub-devices of different brands or flash router firmware to extend network range. Pre-flashed with Zigbee coordinator firmware based on EZNet 6.10.3 out of box Support smart home platforms like Home Assistant, openHAB, Zigbee2MQTT and so on Based on EFR32MG21+20dBm output gainaa Colour:black Material:plastic Package Contents: 1x ZigBee 3.0 USB Dongle Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.