Comfast 924AC USB3.0 1300Mbps 5GHZ 2.4Ghz Dual Band Dual Antenna Wireless Wifi Adapter RTL8812BU WiFi LAN Network- Card PC WifiOOTDTY  Description:brand new and high qualityFeature:1300Mbps 11AC Dual Frequency wireless transmission speed,Let you go online, play games and work faster than others, bid farewell to the troubles of waitingDual band 2.4Ghz 400Mbps;5.8Ghz 867Mbps,You can switch modes at willUSB3.0 receiver, 10 times faster transmission speed, and compatible with USB2.0 and USB1.1.Get rid of the traditional single frequency single antenna network- card,Dual Band Dual Antenna Let you surf the Internet at high speed, with faster and stronger signalThe Wifi signal will not be blocked by the wall, you can quickly pass through the wall, and at the same time, your desktop computer can also access the Internet without a network- cable, which is convenient and does not occupy spaceUnique design of dust-proof heat dissipation holes, efficient heat dissipation while blocking dust intrusionSpecifications:Chipset: RTL8812BUAntenna: 2Interface: USB3.0 high speed interfaceWireless speed: 2.4G up to 300Mbps,5.8G up to 867MbpsFrequency range: 2.4 GHz~5.8 GHzWireless standard:IEEE802.11 ac/a/b/g/n/standardModulation technology: BPSK, QPSK, CKK, OFDM (BPSK, QPSK...16-QAM...64-OAM)Security: 64/128/152 digit encryption, WEP encryption, WPA / WPA-PSK, WPA2 / WPA2-PSK encryption, and one-key WPS encryptionOperating temperature: -20°C to 40°CStorage temperature: -40°C to 70°COperating humidity: 10% to 90%RH(non-condensing)Storage humidity: 5% to 90%RH(non-condensing)Supported Operating Systems: For Windows XP/Vista/WIN 7/WIN 8 operating system, etc.Size: 137x41x12mm/5.39x1.61x0.47inNote:Transition:1cm=10mm=0.39inchPlease allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:1 x 1300Mbps wireless adapter1 x C-D drive1 x English user manual