iDsonix 4 Port Bus Powered USB 3.0 Hub with 3.3 Ft. USB3.0 Cable On Sale (Clump Weight Unit inside) VIA VL812 Chipset and updated firmware with Linu 4-Port USB 3.0 hub (also backward compatible with all USB 2.0/1.1/1.0 hosts and devices) Easily used for any Windows, Mac or Linux Computer Palm-grip size and "power-bar" design effectively saves space. Beautiful blue LED indicates operation. Designed with a built-in surge protector to keep your devices safe. Clump Weight Unit inside offer a Secure Hold on Desktop. 3.3 Ft. USB3.0 cable Offers an Easy Compatibility USB Bus Powered, No Additional Power Adapter Driver or Application needed. Supports hot swapping.