Product Details： The Elfin-ew11a Unit Is A Complete Solution For Serial Port Device Connecting To 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. Elfin-ew11 Serial Server For Data Transfer Via Wi-fi, Which Makes The Data Transformation Very Simple. Support 802.11bgn Wireless Standard Support Tcp/udp/telnet /modbus Tcp Protocol Support Rs485 To Ethernet/wi-fi Conversion, Serial Speed Upto 460800 Bps Support Sta/ap/ap+sta Mode Support Smartlink V8 Smart Config(provide App) Support Easy Configuration Through Web Interface Or Pc Iotservice Tool Support Security Protocol Such As Tls/aes/des3 Support Web Ota Wirelss Upgrade Support Internal Pcb Antenna Wide Dc Input 5-18vdc Colour:as Shown Material:plastic Size:61x26x17.8mm(l X W X H) Package Contents: 1 * Wireless Module Kit Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displ