The Zigbee CC2531 USB dongle is a fully operational USB device that provides a PC interface to IEEE802.15.4 / ZigBee applications.
The USB dongle comes with CC2531ZNP-Prod firmware and can be plugged directly into your PC/Raspberry etc and used as a Zigbee packet sniffer.
Flashed with CC2531ZNP-Prod firmware for zigbee2mqtt application
Lead out 8 IO connectors
Two buttons and two LEDs for user interaction