Support two-way transparent transmission of serial data and network data. Support SERVER, CLIENT, UDP CLIENT and UDP SERVER working modes. Support 10M, full duplex/half duplex adaptive Ethernet interface, compatible with 802.3 protocol. Support automatic conversion of /MDIX lines. Support DHCP to automatically obtain IP address. Support software and serial port to configure chip parameters. Support KEEPALIVE mechanism. The baud rate of serial port supports 300 bps - 921600 bps. Storage temperature:-55-+125 Working temperature: -40-+85 Overall dimensions: 35mm x 20mx17mm Color:Random Color(The color is random, and the designation is not accepted) Material:PCB Package Contents: 1 * Ethernet 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.