Dual-function USB 3.0 hub transforms a single USB port into a 3 port hub with USB network adapter; Connect a keyboard, mouse, flash drive or other USB 3.0 or USB 2.0 peripheral; Add Gigabit Ethernet capability to a computer without an RJ45 network port with this USB Ethernet adapter Lightweight and portable USB hub adapter weighs less than 2 Ouncess with a short cable tail that folds neatly beside the hub for convenient storage or traveling in a laptop sleeve; The USB 3 to Ethernet adapter with USB reduces wear and tear on the USB port of your valuable computer from frequent unplugging