Built-in module, small size, easy to assemble; 11N wireless technology, 300Mbps wireless rate; Supporting ATHEROS wireless technology can greatly enhance its wireless transmission capability, enhance the stability of wireless signals, and expand wireless coverage Chip scheme: QCA9531 802.11b/g/n/ac 750M built-in wireless routing module solution adopts Qualcomm QCA9531 chip, the chip integrates MIPS 24K processor, main frequency 550MHZ, Switch (MAC, PHY part) and integrated wireless part of MAC, RF, PA , LNA part, powerful, high integration. Memory (DDR2): 128MB (byte); Flash, (Flash): 16MB (byte) Features: PCI Express 1.1 interface; USB2.0 interface; 1 IEEE 802.3 Ethernet WAN port; 4 IEEE 802.3 Ethernet LAN ports; Support 64/128bit WEP, WPA/APA2 PSK; Built-in DHCP server, built-in firewall; Two 2.4GHz wireless RF transceiver antennas; One 5.8G wireless RF transceiver antenna; Supply voltage 3.3V; 512M16bit random access memory; 16Mb SPI Flash; 20/40 MHz channel bandwidth; Support OPENWRT system; 16MB FLASH, 128MB (1G bit) DDR2 Support 5G (20/40/80 MHz), compatible with 802.11ac Wave 2, 802.11ac, 802.11a/b/g, 802.11n; Support 64/128/152-bit WEP encryption and 128-bit WPA; Standard(TKIP/AES), IEEE802.1X and other security encryption mechanisms. Support SSID broadcast control and MAC address-based access control; Number of working channels: 1-13; Frequency range: 2.4~2.4835GHz; ??5.180 GHz-5.850 GHz; Spread Spectrum Technology: DSSS (Direct Sequence Spread Spectrum) Data modulation: BPSK, QPSK, CCK and OFDM (BPSK/QPSK/16-QAM/64-QAM); Sensitivity @ PER (packet error rate): MCS15:-62dBm@10%PER;MCS7: -65dBm@10%PER; 54M:-68dBm@10%PER; 11M:-84dBm@8%PER; 6M:-88dBm@10%PER;1M:-90dBm@8%PER (typ.); Transmission distance: up to 60 meters indoors, up to 150 meters outdoors (depending on the environment); RF power: 11ac 14dBm 11n 14dBm 11g 13-15dBm, 11b 16-18dBm Antenna type: I-PEX RF coaxial interface (50 ohm impedance) is provided, which can be connected to different types of antennas. XB931 is a built-in wireless routing module compatible with 2.4G WIFI and 5.8GWIFI. It is a WIFI module suitable for wireless networks such as set-top boxes and smart gateways. The built-in wireless routing module provides a 6 (2x30) Pin interface for Connected to the main board of the device, with all functions and security mechanisms of wireless routing,supports IEEE802.11g,802.11b,802.11i,802.1X, 802.3,802.3u,802.3X,802.11n,802.11ac standards,bringing users an extraordinary wireless Internet experience. colour: green Material: PCB Size: 45x45mm Package Contents: 1 x dualband module Only the above package content, other products are not included. Note: Light shooting 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.