The Targus Travel USB 2.0 4-port Hub with Ethernet Cable is designed for users that require an all-in-one connectivity solution. The 4-port hub provides an instant expansion to your notebook's USB ports and the Ethernet cable provides a network or Internet broadband connection. The hub/Ethernet combo is designed to conveniently attach/detach to accommodate the user's needs. The cable and hub attach together providing one portable solution and can easily separate making it easy to use both the hub and cable as needed. The Travel Hub with Ethernet Cable is designed for mobile users seeking an easy to carry connectivity solution, with no AC adapter required.