The Dyconn Portable 4 Port USB 3.0 Hub is designed for portability and enables the connection of 4 USB supported devices through one USB 3.0 connection, expanding one USB 3.0 port into four. It's small, lightweight design and integrated USB 3.0 cable makes the Dyconn Portable 4 Port USB 3.0 Hub perfect for users on the go. With one USB 3.0 connection, connection possibilities, such as printers, external hard drives, keyboards and mice. On and off buttons are provided to maximize power distribution to connected devices. The Dyconn Portable 4 Port USB 3.0 Hub supports plug and play functionality, requiring no external power adapter, and is backward compatible with USB 2.0/1.1 products.