M5Stack ESP32 Ethernet Unit with Power over Ethernet (PoE) adopts ESP32 as built-in MAC and IP101G as physical layer transceiver. This module can connect to the server with AT commands through a serial port, achieving data transmission and remote control functions. The ESP32 Ethernet unit with PoE features IEEE 802.3/802.3u standard, RJ45 network port 10Mbps/100Mbps, HY2.0-4P interface 5VDC power supply, and PoE power supply. This module includes default firmware with ESP-AT and supports TCP, MQTT, and HTTP protocols. The PoESP32 unit with PoE can be used in the Ethernet controller and TCP client data passthrough.