4 switches for 4 USB ports

*Four switches for 4 USB ports
*Each interface can supply power up to 500mA each.
*No need for drive program,plug and play,support hot plug.
*Support 500G mobile HDD.
*With USB2.0 data transfer rate up to 480Mbps.
*Support 5m extended wire
*Built-in overload and short circuit current protection device to protect your computer and equipment from damage