A USB WiFi adapter is an easy way for nearly any computer user to connect to the Internet wirelessly. WiFi adapters slip easily into an available USB slot and there are USB WiFi adapter models compatible with all operating systems. These portable devices increase the portability of laptops by allowing users to connect to wireless networks anywhere and eliminate the need for extra cables and internal installation. If a wireless network or WiFi hotspot is already in place, users simply need to plug the WiFi adapter into an available USB port, start up the computer, and install the necessary drivers; within minutes, they can be surfing the Web.