One Serial Port: With RS485 serial port, It can realize transparent transmission between RS485 and Ethernet ports. It supports timeout restart, DHCP, DNS and other advanced features such as heartbeat packet, registration packet etc. Rich Protocols: TCP/UDP/HTTP/DHCP/DNS. Modbus Gateway: Modbus TCP/RTU conversion, Modbus RTU to JSON. Easy Config: AT command, built-in webpage, config utility. Bidirectional Transparent Data Transmission: With serial device server, traditional serial devices can be connected to local networks and the Internet Then users can transform traditional serial device into loT device. Virtual-COM Software: This feature can infinitely extend the serial cable,allowing communication to no longer be limited by distance. Point-to-Point Communication: Using this method, it is possible to achieve data communication between two serial devices. Multi-user Access: In TCP server mode, it suppports multiple TCP clients acess, so it can realize multi-user control of serial devices. Colour:White Material:ABS Different batches may have different appearance label printing, which will not affect the use Package Contents: 3 x RS485 to Ethernet Converter 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.