Leedemore USB 3.0 Hub, 4 Port USB Hub with Power Adapter Ultra Slim Super Speed Data Transfer Hub for mac laptop Ultrabook and Tablet PC Function:Expand your computers connectivity with this 4-port USB hub Super Speed Data:USB 3.0 Interface theoretical Up to 5 Gbps data speeds, compatible with USB 2.0 Support:Support windows xp/vista/7/8/10 and Mac OS, linux, working with USB 2.0 / USB 1.1 Package:1pcs 4 Port USB 3.0 Hub, 1pcs 5V/2A power adapter Warranty:Leedemore provide 3 month warranty