SONOFF Zigbee 3.0 USB Dongle Plus Gateway $21

Amazon has SONOFF Zigbee 3.0 USB Dongle Plus Gateway on sale for $20.99. Shipping is free with Prime or on $35+ orders. Features: - Pre-flashed with Z-Stack 3.x.0 coordinator firmware - Can use ZHA in Home Assistant or use Zigbee2MQTT