Bluwee 5-Port USB 3.0 Hub with 4pcs Data Transfer Ports, 1pc 5V/2.1A Smart Charging Port, Individual On/Off Switches and 5V/2A Power Adapter(ABS Black) Easily add 4 USB 3.0 SuperSpeed ports to your PC and enjoy data transfer rates of up to 5Gbps for faster sync times Data transfer rates of up to 5Gbps (much faster than USB 2.0), compatible with USB 2.0 and 1.1 specifications Including 1 port quick charge, compliant with BC1.2 to 2.1A maximum Drivers free for Windows (32/64-bit) 8.1/8/7/Vista/XP, Mac OS X 9.0 or above, Linux 2.6.14 or above Compact design easy to carry and install