Kootek 1200Mbps USB WiFi Adapter USB 30 Wireless Dongle Network High Gain Dual Band 245G 80211ac with 5dBi Antenna for PCDesktopLaptopWin 10Win 81 Win 8Win 7VistaXP Mac OS 1061014

Kootek 1200Mbps USB Wifi Adapter for PC/Desktop /Laptop/ Win 10/Win 8.1/ Win 8/Win 7/Vista/XP Mac OS 10.6-10.14 Specifications The Latest Chip: RTL8812BU Wi-Fi Band: Dual band 2.4 or 5GHz Antenna: High Gain Long-Range 5dBi Upgraded: Compatible with USB 2.0 & USB 3.0 Standard: IEEE 802.11 b/g/n 2.4GHz, IEEE 802.11 n/ac 5GHz WiFi Performance: AC1200Mbps (5G 867Mbps+2.4G 300Mbps) Support all WLAN routers: WPA-PSK/WPA2-PSK/WEP Support Systems: Win 10/Win 8.1/ Win 8/Win 7/Vista/XP, Mac OS 10.6-10.14, not support Linux Kindly Note 1. Please install the driver at first, you can find the driver installation file from CD, then you can plug your USB wifi adapter into your device. 2. This Wifi Dongle has two bands, but it can run at up to 867 Mbps speed only when connected with a router which supports 5 GHz band, and its max speed is at up to 300 Mbps when connecting with a router which supports 2.4 GHz. 3. 5 Ghz mode stands out within short range. If your router is close to the wireless network card, then wifi signal will be stronger under 5 GHz than 2.4 GHz. If the distance is longer or there are many obstacles between USB wifi adapter and router, then you will get a better signal under 2.4 GHz. Troubleshooting 1. Your initial driver file may be damaged. Please try to unload the driver then reinstall it. 2. Your PC system may not be compatible with this wifi adapter. We suggest you to install the driver on another computer. If the wifi adapter works well with another computer, your first PC might miss a system file which is needed for installation. Package Included 1x AC1200 Wireless USB Wi-Fi Adapter 1x Drivers CD 1x Quick Installation Guide 1x Warranty Card