1) Adds 4 USB 2.0 hi-speed ports 2) Fully compliant with USB 2.0 specification 3) Backwards compatible with USB 1.1 4) Supports data transfer rate at 1.5/12/480 mdps 5) Individual port over-current protection 6) Friendly and ergonomic design, easily potable 7) Provides up to 500mA per port, sufficient for diverse devices 8) Power adapter included (5V/2.6A output) 9) Plug and play installation 10) Supports Windows ME, Windows XP 11) Supports Mac OS 8.6 or above 12) Hi-speed downstream ports with USB A female connectors 13) 1 hi-speed upstream port with mini USB 5p jack System requirements: 1) Pentium based PC or power PC based Macintosh with available USB 2.0 port 2) Mac/Windows OS with USB 2.0 support Packaging: 1) USB 2.0 hi-speed 4 ports hub 2) USB 2.0 A / male to mini USB 5p plug cable