Kanex DualRole - perfect for travel. A Gigabit Ethernet Adapter + 3 port USB 3.0 Hub all-in-one solution. The DualRole is a perfect companion for MacBook users who need additional USB 3.0 ports for instant connection to peripherals and to connect to a secure wired network using Gigabit Ethernet simultaneously. DualRole lets you connect and expand various USB peripherals with up to 3-additional USB 3 SuperSpeed ports. Ideal for travel and road warriors.