Holiday Shipping Details & Extended Holiday Returns 
The WiFi Adapter is equipped with high-gain dual 5Dbi antennas and uses MU-MIMO technology to provide two simultaneous data streams. with a compatible MU-MIMO router, It can significantly increase the total network throughput and capacity, MU-MIMO technology boosts connection speed when multiple compatible clients are online.
Our USB Wireless Network Adapter works with a number of operating systems. including PC Desktop Laptop for MAC10.6-10.15 ,Windows 7/8/10/11 ,It is the perfect choice for you to watch HD videos and play online gaming.The USB WiFi Adapter is equipped with USB 3.0,can get faster speed.
The USB WiFi Adapter can obtain faster speed by adjusting the freely rotatable WiFi antennas.The signal strength is not only related to the antenna gain, but also to the antenna receiving angle. The USB WiFi can adjust the antenna angle to a better signal receiving position according to the use environment.
1: Here is tips special for you: Wireless Adapter Support Systems: Windows 11/10/8/8.1/7/Vista/Xp,Mac 10.6-10.15 ,Not support TV,Projector,Printer.you can connect with 802.11 AC 1300 Mbps 1750 Mbps router.
2: WiFi Antenna: When signal is weak,you can turn the antenna 60 degree tilt,the signal of USB WiFi Adapter for PC will better. The WiFi Adapter for Desktop PC speed max.speed up to 867Mbps just works when Wireless USB Adapter connect to 5G band. otherwise,The WiFi dongle will just run at the max.speed of 400 Mbps with 2.4G.Normally, your PC's network speed can't up to the WiFi USB adapter's speed as it depends on many factors,Such as the network size,router, laptop or desktop or PC 's internal memory.
3: 5 GHz mode stands out within short range. If your PC WiFi Adapter is closed to the router,then WiFi signal will be stronger under 5 GHz than 2.4 GHz. Now You want to have fast speed in watching video and playing online games,