Compact, portable design, and to easy take with you. The 7-port USB Hub allows you to easily connect external devices including Mice, Keyboard, Flash driver, Printers and other USB devices to your Laptop or Desktop Computer. Provides USB 2.0 interface ,fully backward compatibility with USB1.1 devices. Support high-speed data transfer rate up to 480 Mbps. Work with USB bus power or external power adapter. No need driver ,support hot swapping and plug-and-play capability.