The st3300gu3b portable usb 30 hub features an integrated gbe port enabling you to expand your laptop connectivity by adding three external usb 30 ports as well as a gigabit network port via a single usb 30 connection the hub merges gigabit network support and usb 30 hub access into lightweight yet sturdy aluminum casing providing vital connectivity ports that are often limited or nonexistent on modern mobile computers while remaining compact and travel friendly plus with an attached usb 30 host