SIIG Accessory JU-H30812-S1 USB 3.0 4-Port Hub Adds 4 USB 3.0 Port to Computer Retail Simply add four USB 3.0 ports to desktop, laptop or tablet computer via single USB port connection Tuck-away USB cable design makes it free from cable tangles and compact size provides great portability and ease-of-storage SuperSpeed USB 3.0 interface supports data transfer rates up to 5Gbps and backward compatible with USB 2.0/1.1 devices Plug-n-Play, no driver installation and no external power adapter required