Features Provide four USB 3.0 ports Compliant with USB 3.0 Specification 1.0 Supports simultaneous operation of multiple USB 3.0 USB 2.0 and USB 1.1 devices Up to 5Gbps data transfer rate Hot-swapping feature allows you to connect/disconnect devices without powering down the system No device drivers required for Hub installation LED to indicate Hub power   System Requirements Windows® XP/Vista/7/8/8.1/10 (32/64 bit); Mac OS X v10.8 or later Available USB port (USB 3.0 recommended)   Package Contents 1 x Portable 4-Port USB 3.0 Hub 1 x User Manual 1 x Power Adapter (Optional)   Packing Information: * Retail Box Packing * 50pcs. Per carton * Measurment: 74x36x23 cm * G.Weight: 7.7 kg * N.Weigt: 6.9 kg