Baud rate of serial port from 600 to 230.4 Kbps, test bit from None, Odd, Even, Mark and Space Working mode: TCP server, TCP client, UDP client, UDP server, HTTPD client Supports virtual serial interface and provides appropriate software Heartbeat package mechanism to reliable connection, terminates dead connections Custom mechanism to register packages, check connection status, and use as a custom package header In TCP server mode, the client number ranges from 1 to 16 default number is 4 About the gateway, switches, routers Can work in LAN, can also work on the Internet (external network). Colour: as shown in the picture. Material: plastic. Package Content: 2 x TCP232-304 Serial Port RS485 to Ethernet Converter (No Power Supply) Only the above package content, other products are not included. Note: Due to the light reflection and monitor settings, the colour of the item in the photos may be slightly different. The allowed measurement error is +/- 1-3 cm.