I purchased this Mini USB WiFi Adapter by Bihuo for laptop support. A wireless USB adapter connects a computer without wireless hardware to a wireless network by transmitting either a Wi-Fi or Bluetooth signal, if anyone doesn't know what it is. I chose this brand because of the compatibility with a laptop or desktop computer. I use it for my laptop, I don't have a computer system. With your purchase you get the WiFi adapter only, because you don't need a CD. All you do is plug it into your laptop or desktop computer and it automatically starts downloading. So compact it doesn't get in your way while your on your laptop or desktop computer. Wireless USB Wi-Fi Adapter is compatible with Win 10/8/8.1/7/Vista/XP/2000, Mac OS X 10.6-10.13. This Bihuo USB network adapter supports 64/128WEP, WPA/WPA2, WPA-PSK/WPA2-PSK security. You can upgrade your Desktop or Laptop to work with the latest routers for faster speed and extended range.