Ugreen 90339 AC650 High-Gain Dual Band Wireless USB Adapter for Desktop PC offers stronger signal penetration and wider coverage for better performance. The high-gain antenna ensures stable signals even from farther away across multiple walls and floors. USB Wifi Adapter supports both 2.4GHz - up to 200Mbps and 5GHz bands - up to 433Mbps at the same time and can switch automatically in different situations. So that the network can always be fast and stable. USB Wifi Adapter for PC provides a stronger signal by the multi-angle adjustable antenna. When the signal is not stable enough, you can try to rotate and adjust the direction of the antenna for better performance and performance in different environments.