Even with today"s amazing technology it always seems like we need more. How many times have you tried to plug in a USB device and realized all your ports were full? Or how about transferring a movie from your flash drive to your hard drive, how long did you have to wait? Well, now with HooToo"s USB 3.0 hub things are about to change. With our new USB 3.0 you can connect 7 USB devices such as; printers, keyboards, hard disks, mouse, flash drives, card readers, cameras/video players and anything else you can think of with a transfer rate 10 times faster than your normal 2.0 USB devices. Wider spaces between ports To avoid the frustration of having multiple devices connected like crossed cables or which cable goes to which device. We provided 0.6 inches of space between ports so you can keep your devices neat and organized. Bus-Powered While our USB hub can get power directly via USB port, HooToo also provides a 5V/4A power adapter for high-current consumption devices such as hard drives or vedio players. So, no matter what the situation, you will be connected. OS: Windows XP, Vista, 7, 8. Mac OS X or above. Linux 3.0 or above 2012 Mac Mini and 2012 MacBook Pro with Retina Display are currently not recommended for use with this product because of unstable performance Remarks Some devices require direct connections to host USB 3.0 ports, including some USB 3.0 hard disks, Apple Superdrive and 2.4GHz wireless devices We recommend Mac OS X Lion 10.7.4 users upgrade to 10.8.2 or later for stable USB 3.0 performance. Connecting directly to USB 3.0 ports on Mac is required This is not a stand alone charger so it won"t charge your phones/tablets