If your desktop PC happens to be in an area that is hard or annoying to reach with cables, it is good to have a way to connect it to a wireless network. USB wifi adapter can be used; you can upgrade to new mainboards with built-in - in wifi, or install a dedicated PCIe wifi card. It is easy to add wifi to systems that do not have it, but if you have the option, you have to install it yourself. Therefore, it is better to check if the drivers for the radio card work at the time of purchase of the product. To avoid driver problems when installing the wifi / PCI card, make sure they are compatible with your operating system. You may need to install drivers to make it work, but ensuring the wireless functionality of your order should be a simple plug-and-play routine after installation. Check with the most common protocols whether the adapter offers a bandwidth of 2.4GHz or 5GHz . Network speed is an important parameter, so make sure that the purchase is evaluat...