Ewelink Zigbee 3.0 USB Dongle E 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!
The dongle plus has a wide range of supported devices, such as Ewelink BASICZBR3, Ewelink S31 Lite zb, Ewelink SNZB01, Ewelink SNZB02, Ewelink SNZB03, Ewelink SNZB04, Ewelink ZBMINI, Ewelink S26R2ZB , and various sub-devices from various brands or flash router firmware to extend the network range.
The official firmware supports 21 direct children by default and up to 40 children. You can modify the relevant configuration to support up to 100 children.
You can use it with all Raspberry Pi models, can be purchased from below link
Raspberry pi 4 2gb: https://collegeroadonline.com/product/raspberry-pi-4-model-b-2gb-in-pakistan/
Raspberry pi 4 4gb: https://collegeroadonline.com/product/raspberrypi-4b-with-4-gb/
Raspberry pi 4 8gb: https://collegeroadonline.com/product/raspberrypi-4b-8gb/