The Accell USB 3.0 (Type-A) to Gigabit Ethernet adapter adds a 1000Mbps Gigabit Ethernet connection to a computer’s USB 3.0 port. It easily converts a computer’s USB port into a 10/100/1000 Base-T Ethernet port. It can also improve the connectivity speed of your computer over its existing 100Mbps Fast Ethernet port or when using a Wifi 802.11 wireless network*. Transfer rates up to Gigabit (1000Mbit/s) Ethernet with USB 3.0 Works with Windows or Macintosh computers Powered through the USB port - no external power needed Compact and very portable, perfect for Notebooks or Ultrabooks