DESCRIPTION 600 Mb / s 5 GHz 2.4 GHz USB adapter Wifi USB dual band RTL8811AU Wifi antenna Dongle lan adapter for Windows Desktop / Laptop / PC Features: Complies with 2.4G and 5.8G IEEE802.11ac / a / b / g / n System model: RTL8811AU Improve wi-fi speed of laptop with AC standard. Support 1T1R and 2.4 GHz / 5 Ghz double frequency USB 2.0 faster. With 2dBi extension antenna. Wireless transmission at up to 600 mbps (802.11ac), according to internet conditions, to automatically adjust the wireless transmission speed Search the Internet and automatically change the transmission speed Provide two modes of operation: infrastructure and ad-hoc Downward compatibility 802.11g / n internet device Use roaming technology, promise high-performance wireless connection Wifi performance AC600Mbps (2.4G 150 M / 5.8G 433 M) Operating system support: Windows DriverWin 8.1 and old Windows driver (new Win10) driver (Mac10.6, Mac10.8) driver (Mac10.9, Mac10.10) Does not support linux Package including: 1x 5 Ghz / 2.4 Ghz wireless antenna Adapter 1x Disc Driver Green and orange packet sent at random. Note: if your computer doesn't have a cd player or the cd driver is damaged during shipping, you can download the cd driver via this website : Https://drive.google.com/file/d/0ByAataNdfKjtbVBpbVV4RWFOUE0/view Please don't hesitate to contact us if you have any questions or concerns before or after your purchase. We are committed to your 100% satisfaction. 1.Shipping Cost: Select the quantity first, then click the country via logistic methods in the page. 2.Go the the next page, you can see the detail shipping cost by each logistic methods under your selection. 3. Item Processing Time: The processing time for a specific order varies with the product type and stock status. Mostly, processing time can be 3 to 15 working days. Since your feedback is very important to our business`s development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and se