StarTech USB 3.0 to GbE Network Adapter Silver Gain fast, reliable network access for your MacBook, Chromebook or tablet, even if it doesnt have an Ethernet port. This USB 3.0 to Gigabit network adapter adds a single RJ45 Ethernet port to your computer through your USB 3.0 port. It installs instantly - with no driver required.Please note this item is non-returnable, see our returns policy for more information.