The Cables To Go Port Authority2 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 and allow for hassle-free front-side connection of USB devices. With four downstream ports, it is designed to work with mice, keyboards, CD-R/RW's, hard drives, webcams, flash card readers and other USB-enabled devices. The Port Authority2 USB 2.0 High-Speed Front-Bay Hub can transfer data at 480 Megabits per second -- 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 Authority2 USB 2.0 High-Speed Front-Bay Hub supports Microsoft Windows XP, 2000, Me, 98SE, 98 and Macintosh OS. The plug-and-play design enables easy, trouble-free installation of your USB devices.