USB 3.0 Hub, 4 Port Bus-powered Hub Cable Supports Windows Mac Linux High Performance Interface for Personal Business Gaming, Black Enjoy data transfer rates (Note: actual rate will depend on the capability of your device.), backward compatible with USB 2.0 / 1.1. Easily add 4 USB 3.0 to your PC, laptops and tablets (including Microsoft Surface, Ultrabooks and MacBook), eliminating the trouble of switching among devices. Beautiful blue LED indicates operation. Designed with a built-in surge protector to keep your devices safe. Supports hot swapping. Package contents: 4-Port Hub (with built-in 1 ft cable)