StarTech.com Network Adapter USB31000SA - USB 3.0 to Gigabit

Gain fast, reliable network access for your MacBook, Chromebook or tablet, even if it doesn't 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.