The Elfin-EW11A unit is a complete solution for connecting serial port devices to a network. This powerful device supports a reliable and proven operating system stored in flash memory, an embedded web server, a full TCP/IP protocol stack, and standards-based AES encryption. The Elfin-EW11A serial server enables data transfer via Wi-Fi, making data transmission simple and efficient. - Supports 802.11b/g/n Wireless Standard - Supports TCP, UDP, Telnet, and Modbus TCP protocols - Supports RS485 to Ethernet/Wi-Fi conversion with serial speeds up to 460800 bps - Supports STA, AP, and AP+STA modes - Supports link V8 configuration (APP provided) - Easy configuration through web interface or PC IOTService tool - Supports security protocols such as TLS, AES, and 3DES - Supports web-based OTA wireless upgrade - Equipped with internal PCB antenna - Wide DC input range: 5–36VDC - Color: Black - Material: Plastic + Metal Package Contents: 1 x RS485 to Wi-Fi module 1 x Network interface cable 1 x Fixed bracket Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3 cm.