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Waveshare Industrial Grade Serial Server RS232/485 to WiFi / Ethernet RJ45 Network Port synthetic duvet ip gold plating (ion plating)Features: 1. RS232 485 device data collector IoT gateway specially designed for industrial environments. 2. Integrate multiple functions into one, including serial port server, Modbus gateway, MQTT gateway, serial port to HTTPD client, etc. 3. The module has RS232, RS485, WIFI, and Ethernet interfaces, which can realize serial to WIFI, serial to WIFI and other functions; Ethernet, Ethernet to WIFI, etc. 4. Multiple onboard power interfaces support a