The 2.5G Ethernet USB 3.0 Adapter allows you to connect to the internet easily through the built-in USB port on your laptop. This is an ideal solution for MacBook or other Windows computers that may have wireless built-in but don’t come with an Ethernet port. With its 2.5 Gigabit Ethernet connection, it enables lightning-fast data transfers, at speeds 2.5 times faster than Gigabit Ethernet.