The Cables To Go Port Authority USB 2.0 High-Speed Front-Bay Hub has 4 ports that will connect to either USB 2.0 High-Speed or USB 1.1 peripheral devices. The internal USB hub can be mounted into any 3.5 inch drive bay allowing for hassle free front-side connection of USB devices. With four downstream ports, it is designed to work with mice, keyboards, CD-R/RWs, hard drives, webcams, flash card readers and other USB enabled devices. The Port Authority USB 2.0 High-Speed Front-Bay Hub can transfer data at 480 Megabits per second, making it 40 times faster than previous USB adapters and 20% faster than FireWire. The USB hub is USB-IF certified and is backwards compatible with USB 1.0 and 1.1 devices. The Port Authority USB 2.0 High-Speed Front-Bay Hub supports Microsoft Windows XP, 2000, Me, 98SE, 98 and Macintosh OS. The plug and play design makes for easy, trouble-free installation of your USB devices.