USR-DR404 is a Din-rail WiFi serial device server that can realize bidirectional transparent transmission between RS485 and WiFi / Ethernet.Industrial Din-Rail WiFi Serial RS485 Ethernet Device Server USR-DR404$95.00PriceQuantity*Add to CartFeatures 1-port RS485 to 802.11 a/b/g/n WLAN Serial Device Server Links serial and Ethernet devices to an IEEE 802.11a/b/g/n network Supports TCP server/client, UDP server/client, HTTP client, Virtual COM Supports Modbus RTU to Modbus TCP Supports multiple networking mode with 1 RJ45 ethernet port