The VisionTek USB 3.0 4-Port USB 3.0 Hub lets you connect up to four USB devices to your system through a single USB 3.0 port.Durable, everyday charging and data adapter with four USB 3.0 ports. This hub allows for Fast Charge up to 900mA per port support along with data transfer speeds of up to 5 Gbps when connected to a system USB 3.0 port.USB 3.0 Compatible - Charge and sync any USB devices such as mobile devices, external storage, keyboards and mice.High-Speed USB 3.0 Data Hub - Quickly and efficiently charge and backup your devices with up to 5 Gbps data transfer rates for each port.Quality Assured - Vigorous testing and quality controls ensure each hub and ports work properly. Aluminum housing allows for better heat distribution and durability.Plug and Play Use - Fully compatible with USB devices allowing you to connect mobile devices, mouse, keyboard, external storage and much more without the hassel of drivers or configuration settings.WARNING: Cancer - www.P65Warnings.ca.gov