LevelOne USB Fast Ethernet Adapter allows you to connect to the internet easily through the built-in port on your laptop or gaming console. Now you no longer need to have an Ethernet connection in order to surf the web. This is an ideal solution for MacBook Air (100% Mac compatible) or other computers that may have wireless built-in but don't come with an Ethernet port. Sometimes you need to physically connect to a network cable to help transfer files or access secure information. USB-0301 easily does the job, all through your USB port.