CG093W Four USB ports. High speed data transfer. Maximum data transfer rate: 480 Mbps. Compatible USB 2.0/1.1/1.0. Support Windows 7/Me//XP/2000/ Vista /X64. Can add 4 USB peripherals to your computer in order to save the desktop space. Connect to scanners, printers, digital cameras, camcorders, speakers, mice, keyboard, external drives, MP3 players and more. No need adapters and no need drivers.