WiFi Adapter for PC AC1200Mbps Wireless Network Adapter for Desktop with 2.4GHz/5GHz High Gain Dual Band 5dBi Antenna, Supports Windows 10/8.1/8/7/XP, Mac OS 10.6-10.15,Vista,Linux

Dual band usage instructions: This is a dual band WiFi dongle there are something you should know before you make a complaint about speed. 1) Dual band WiFi router is a must-have if you want to receive 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 400Mbps 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 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 3 0 (blue) port 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 youd better connect to 2 4G band for better and stable signal.

If your computer without CD drive, Please download the driver it from below links.
Driver for Windows:
https: //www. realtek.
com/en/component/zoo/category/rtl8812bu-software Driver for Mac:
https: //www. dropbox. com/s/1wb3clph3pdqt2k/RTL%20Driver. zip? dl=0
Driver for Linuxhttps: //github. com/cilynx/rtl88x2bu