A serial port turn wifi module, a serial port turn ethernet module, ethernet switch wifi multi-function wifi module, a serial port server module, make it easy for your serial port device connected to the internet, transparent two-way data transmission, to ensure the highest limit of ease of use and compatibility 2. 10/100 m adaptive ethernet interface module integration, the serial communication baud rate up to 230.4 kbps 3.3. By using the world's top network chip leiling ralink solution, raw materials adopt tdk / / murata, stable and reliable basis 4. The system core is suitable for the security of the reliable and long-term running system application 5. Size: Likes credit card 6. Working temperature: Industrial-grade: 25 ~ 75 c. 7. The built-in 360 m of mips cpu, 16 mb ram and 4 m flash and wireless baseband and rf front end and a variety of peripheral bus 8. Through ce and fcc certification, the ieee 802.11 b/g/n, support transparent protocol data transmission mode 9. Most support wifi encryption methods and algorithms, wep/wap wpa2-psk/wap2 wpa2-psk/wapi, wep64 wep128 / tkip/aes encryption type 10. At + instruction set configuration, provides the friendly web configuration page, through a web configuration 11. The optional built-in onboard or external antenna 12. Support wireless work in ap model and node (station), the real hardware ap, support iphone and android systems all wifi connection, functions of ap and station online at the same time 13. Optional tcp server/tcp client/udp work mode, network protocol: Tcp/udp/arp, icmp/dns/dhcp 14. Support dhcp automatically obtain ip, support work in ap mode to assign ip from the device.