Pawtec 4-Port Aluminum USB 3.0 SuperSpeed Powered Hub w/ AC Adapter [VIA VL812-B2 Chipset] for Windows, Mac, Laptops, and Desktops Type: USB Standards: USB 3.0 Ports: 4 x USB 3.0 Power Input: 5V/2A DC UL Approved Wall Adapter (if needed) Operating System Supported: Windows 98 SE, ME, 2000, 2003, XP, VISTA, Windows 7,Windows 8, 8.1, Mac OS 9.X or above, Linux 2.4.x or above. Color: Black Package Contents: Pawtec Powered 4-Port Aluminum USB 3.0 HUB, 5V/2A DC UL Approved Wall Adapter, USB 3.0 Cable, User Manual Parts: 1 Year Limited Warranty