The EW11A unit is a complete solution for connecting serial port devices to a network. This powerful device supports firmware stored in flash memory, an embedded web server, a full TCP/IP protocol stack, and standards-based encryption. The EW11 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/Modbus protocols Supports RS485 to Ethernet/Wi-Fi conversion Serial speed up to 460800 bps Supports STA/AP/AP+STA mode Supports V8 smart configuration via mobile app Easy configuration through web interface or PC IOTService tool Supports security protocols such as WEP/WPA/WPA2/3DES Supports web-based OTA wireless firmware upgrade Equipped with internal PCB antenna Wide DC input range: 518V DC Color: As shown Material: Plastic Size: 61 x 26 x 17.8mm (L x W x H) Package Contents: 1 x Wireless module kit (only the above items included; other products not included) Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 13 cm.