Carantee Wireless USB 3.0 WiFi Adapter 1200Mbps (Cooling Hole Design), WiFi Dongle Dual Band 2.4GHz/5GHz with 5dBi Antenna for Desktop Laptop PC Support WinXP/7/8/10/vista, Mac10.4-10.14, Linux

Dual Band Usage Instructions: 1. You must have a dual band WiFi router with 5G band if you want to have a 5G signal. 2. The adapter's max speed up to 867Mbps just works when you connect to 5G band, otherwise, it will just run at the max. speed of 300Mbps with 2.4G. Normally, your PC's network speed can't up to the wifi adapter's speed as it depends on many factors, Such as the network size?router, barriers, laptop or PC 's internal memory. 3. If your computer is desktop, speed is not ideal, you can try to insert the WiFi adapter into the USB3.0 of you PC, that may assure the power supply. 4. This WiFi adapter will not boost the speed of original router, it just transmit the wifi signal. 5. If your WiFi adapter is closed to the router, and you want to have fast speed in watching video and playing online games, we suggest that you should connect to the 5G band. If your WiFi adapter is far away from the router, and you just want to surf the website, you'd better connect to 2.4G band for better and stable signal. TECHNICAL SPECIFICATIONS Maximum Wireless Speed:Up to 1200Mbps USB:3.0 Wireless Technology:802.11a/b/g/n/ac Antenna Type:5dBi Compatibility:WinXP/7/8/10/vista, Mac10.4-10.14, Linux WEP/WPA/WPA2/WAPI/WMM:Yes WiFi Band:2.4&5GHz WHAT YOU GET: 1x Carantee USB WiFi Adapter 1x CD Driver 1x User Manual TROUBLESHOOTING: