ESP32-PoE is an IoT WIFI/BLE/Ethernet development board with Power-Over-Ethernet feature.
The Si3402-B chip is IEEE 802.3-compliant, including pre-standard (legacy) PoE support.
Perfect solution for Internet-of-Things that can be expanded with sensors and actuators taking power from Ethernet cable.
Low-power design consuming less then 100uA in deep sleep mode!
Product page: https://www.olimex.com/Products/IoT/ESP32/ESP32-POE/open-source-hardware