USB™ 3.0 Super Speed, 10 times faster transfer rate (5 Gbps) and backwards compatible with USB™ 2.0 and 1.0 specifications Extends your device by 4 USB™ 3.0 ports with only one plug Elegant, compact aluminum housing that is non-toxic and recyclable Supports fast charging for smart phones, tablets and iPad® up to 2.1A Supports USB™ bus-powered or DC self-powered USB™ devices