The for 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 or IP protocol stack,and standards-based (AES) encryption. For Elfin-EW11A serial server for data transfer via Wi-Fi, which makes the data transformation very simple. Support 802.11bgn Wireless Standard Support TCP or UDP or Telnet or Modbus TCP Protocol Support RS485 to Ethernet or Wi-Fi Conversion, Serial Speed Upto 460800 bps Support STA or AP or APandSTA Mode Support link V8 Config(Provide APP) Support Easy Configuration Through Web Interface or PC IOTService Tool Support Security Protocol Such As TLS or AES or DES3 Support Web OTA Wirelss Upgrade Support Internal PCB Antenna Wide DC Input 5-36VDC Colour:Black Material:PlasticandMetal Package Contents: 1 x RS485 to wifi module 1 x network interface cable 1 x fixed bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.