Features: USB2.0High Speed For PC Laptop 4 Port Hub 4 port hub ideal for laptop users USB cable can be kept into case LED indicator for power and access Individual post over current protection USB bus powered no external power needed Connect up to four USB peripherals to one USB port USB2.0high speed transfer rare up to 480 Mbps Also backwards compatible with USB2.0 Up to 127 Hi-speed devices Provide up to 500 mA per port sufficient for diverse devices Supports both full speed 12MB/s and low-speed 1.5MB/s transfer rates Compatibility With:for Windows 98/2000/ME/XP/Vista/WIN7/for Mac OS 8.6 and higher Specification: Color: Silver Item size: 90*38*13mm Net weight: 28g Package weight: 38g Packing content: 1 x 4 Port USB2.0Mini Hi-Speed