Embedded Serial to Ethernet conversion for easy connection of legacy serial devices to wired TCP/IP networks. Built-in 2.4 GHz WiFi and Bluetooth (BLE) for flexible network deployment and short-range data transmission. Powered by ESP32 dual-core processor, offering high processing speed and low power consumption. Supports multiple network modes including TCP/UDP server and client modes for versatile communication. Standard UART serial interface compatible with common microcontrollers, PLCs, and industrial devices. The product is powered by an ESP32 dual-core 32-bit processor, providing high processing speed and low power consumption. It features Ethernet connectivity via an external connector, along with built-in 2.4 GHz WiFi and Bluetooth/BLE for wireless communication. The device supports various communication protocols such as TCP, UDP, IP, and HTTP, and can operate in multiple modes including TCP server, TCP client, and UDP communication. The standard UART serial interface allows compatibility with common microcontrollers, PLCs, and industrial devices. Power supply requirements are DC 3.3 V, and the operating mode includes transparent transmission mode. Color: Black Material: PCB Package Contents: 1*Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.