4-Port USB HubThis 4-port USB hub is the ideal companion for laptop or desktop computersIdeal USB expansion for portable use on the road or at home.Perfect for connecting USB 1.1 or 2.0 peripherals such as USB mice, USB Portable Hard Drives, USB CD-R/RW or DVD-ROM drives and USB 1.1 hubsAllows simultaneous operation of up to four separate devices all attached to a single USB port.Color: WhitePlug and PlayCable length: 17.7" / 450mmSupports Windows Vista, Windows XP, 2000, 98, and Mac OS 8.6 and higherNote: This hub functions as a USB hub only, to connect USB 2.0, USB 1.1 devices to your computer. It is not meant to serve as a stand-alone charger and will not charge a tablet or any other device with non-standard charge requirementsNote: For a stable connection, devices connected to the hub must not exceed a combined current of 5 Volts 500mAhTransfer Rate :up to 480Mbps