AEDILYS 4 Port USB 3.0 Bus-Powered Hub for iphone ,Ultra Book, MacBook Air, Windows 8 Tablet PC - White More Ports: Turn one of your computer's USB ports into four. SuperSpeed Data: Up to 5 Gbps data speeds let you transfer an HD movie in seconds. Compact size and portable, ideal for laptop, ultrabook and tablet PC. Also works with USB extension cable and backwards compatible with USB 2.0/1.1 devices Plug and play, no driver required, works with Windows XP/Vista/7/8. Mac OS X or above. Linux 3.0 or above. Allow large card readers. sturdy exterior and heat-resistant connectors ensure ultimate durability