Slim and compact design which make it perfect for use with your laptop or desktop PC Item Description 4 X USB Ports 0.5m Extension cable fitted Plug and play no drivers needed Can provide up to 500mA per port Over current detection and protection for each port Slim and compact design Hub supports the following Windows 98, NT, 2000, 2003, XP, Vista, Windows 7 Package 1x 4 Port USB Hub Also available in Black