1、With good performance, support smartlink distribution network, support AP, STA function. 2、The interface form is RJ45, with active power protection, which can be greatly simplified. 3、Small size, easy to carry and store, convenient to use and with good performance. 4、Strict quality control and quality assurance, high safety factor, can be used with peace of mind. 5、Complete tools, you can operate it yourself, suitable for DIY enthusiasts. Item Type: Serial Server Core Parameters: Model Name: HF7211-0 Function Explanation: Serial port to WiFi Processor: For Cortex-M4 SOC Main Frequency: 160MHz Operating System: For Mbeb FLASH Resource: 2MB RAM: 384KB Network Interface Parameters: Wireless Standard: 802.11b/g/n Antenna Form: External antenna WiFi Frequency Band: 2.412GHz-2.484GHz Network Protocol: IP, TCP, UDP, DHCP, DNS, HTTPServer/Client, APP, BOOTP, AutolP, ICMP, Telnet, uPNP WiFi Security (encryption Method): Encryption: AES 128Bit, 3DES, SHA-1, MD5, Base-64, RSA Authentication: PSK, AES-CCMP Wireless Transmit Power: 802.11b: +20 DBm (Maximum.) 802.11g: +18 DBm (Maximum.) 802.11n: +15 dBm (Maximum.) Wireless Receiving Sensitivity: 802.11b: -89dBm( at11 Mbps, CCK) 802.11g: -81dBm( at54Mbps, OFDM) 802.11n: -71 dBm( at HT20, MCS7) Maximum Number of Connections: Maximum, 8STA WiFi Mode: AP, AP+STA, STA Serial Port Interface Parameters: Number of Serial Ports: 1 Interface Standard: RS485 Baud Rate: 600-460800bps Serial Port Protection: Yes Product Features: Configuration Method: SmartLink V7, X APP, Airkiss configuration, WEB page, Cli command, XML file import, Telnet configuration, IOTService software WEB Webpage: Standard webpage or custom webpage IP Acquisition Method: DHCP or static IP, AutolP Virtual Data Channel: Support Firmware Upgrade: Webpage, IOTService software, OTA Registration Package Function: Support Heartbeat Package Function: Support Custom Script Function: Support Packet Filtering: Support Serial Port Automatic Framing: Support NTP Function + Time Zone Setting: Support Parameter Import and Export: Support Reload Reset Interface: Yes Environmental Parameters: Working Temperature: -40-85℃ Storage Environment: -50-90℃, 5-95%RH (non-condensing water) Power Parameters: Interface Form: RJ45 interface Power Protection: Active, which can be greatly simplified. 1 x Serial Server 1 x GPRS Antenna 1 x Crystal Head Turn Button+4Pin Terminal Line 1 x Fixed Bracket 1 x Rail Bracket 2 x Screw