USB ports that are compatible with both Hi-Speed USB 2.0 and USB 1.1 (low-and full-speed)devices. The top loading port gives you easy access for quick,temporary connections of USB thumb drives,media readers,small accessories such as USB lights and fans,the Apple iPod shuffle,and more. Connect a modem,USB printer,scanner, and HD to one convenient USB HUB. With the USB 4 ports HUB you can add 4 USB peripherals to your computer and save desktop space