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USB wireless WIFI adapter 600Mbps dual band 2.4G/5G Hz wireless LAN USB high speed WiFi adapter 802.11AC PC/Latop Free driver wireless USB Wifi adapter 600Mbps Lan USB Ethernet 2.4G 5G dual band Wi-Fi network card Wifi dongle 802.11n/g/a/ac feature: 1: Dual frequency: spare 11AC (5.8G) and 11N (2.4G) connections for TV shows, HD movies, streaming media and online games to avoid wireless interference. It is 2: 433Mbps wireless speed on the 5.8GHz frequency band or 150Mbps speed on the 2.4GHz frequency band. 3: Can help your computer to create Wi-Fi hotspots. 4: Support WPS (Wi-Fi Protected Settings) encryption method, so you don't need to remember long passwords. 5: Mini portable design, easy to carry and easy to use. description: Product Name: Dual Band WiFi Adapter Chipset: RTL8811 Interface type: USB2.0 Frequency range: 2.4GHz + 5GHz Transmission rate: 600Mbps (11N: 150Mbps, 11AC: 433Mbps) Standard: IEEE 802.11AC, 802.11b, 802.11g, 802.11n RF power: 20dBm (MAX) Size: 29 * 15 * 7mm Voltage: DC5V±5% LED indicator: Link / ACT Colour: Black Encryption: WEP encryption, WPA-PSK, WPA2-PSK, WPA / WPA2 64/128 bit encryption. other: Support Windows XP / Vista / WIN7 / 8 / 8.1. Mac/Linux system is not supported. The free driver means that no CD driver is needed, and the computer can automatically recognize the adapter after plugging it into the computer's USB port. Q1. After inserting the adapter into the computer, why does my computer fail to recognize the adapter? 1. Make sure that the connection between the adapter and the computer is good enough. 2. Please insert the adapter into the USB port on the back of the desktop. Or change to another computer. Q2. How can I confirm that my computer can recognize the wifi adapter? 1. Please check if there is a "wireless LAN 802.11ac wifi adapter" in the device management center? 2. Please check whether there is a drive disk in "My Computer". If so, click "Install" and the adapter will work.