Multiple USB Ports : Instantly add Seven USB 2.0 ports to any compatible device, reduce the problem of insufficient USB 2.0 port in your life and work. >>> Exclusive design : Separate LEDs indicate power state for each port and Individual power switches help preserve battery life by allowing you to shut off whatever ports you don't need. >>> Wide Application : Plugging it into your computer, and then connect your mouse, keyboard, external hard drives, flash drives, printer, and so much more! >>> Easy to Use : It's very easy to use, just plug and play. Light weight make it easy to carry and suitable for your travel, office, home and school. >>> BATTERY LIFE : Individual power switches help preserve battery life by allowing you to shut off whatever ports you don't need. >>> POWER STATUS : Separate LEDs indicate power status for each port and shows which USB port is in use at any given time