Description: High speed 7 Port USB 2.0 Hub Support USB 1.0\/1.1\/ 2.0 Built-in over current protection Friendly and ergonomic design， easily protection Provides up to 500mA to each port sufficient for diverse devices easy plug !#!amp!*!amp; play Chains up to 127 USB drives Portable， compact and lightweight System requirements: Window: Windows 7 \/ Vista \/ XP \/ 2000 Macintosh: MacOSX10.2~ MacOS9.1~ Package includes: 1 x 7-Port hub 1 x USB cable