Adds Up To 7 Usb Devices To Your Computer 2 Top-load Usb Ports For Quick Access Internal Weight And Stay-put Pads To Keep Hub Anchored To The Desk Requires No External Power Supply (For Most Devices) Prevents Damage To Your Computer And Devices With Over-current Protection Add Ports For Your Devices And Remove Desktop Cable Clutter With The Patent-pending, Cable-management Feature.