Premiertek 7-Port USB 2.0 Hub with AC Adapter: * Compliant with Universal Serial Bus Specification Revision 2.0 * Root Hub with 7 downstream-facing ports that are shared by OHCI and EHCI Host Controller core * Up to 480Mbps data transfer rate * Plug and play and hot swappable * Overcurrent detection and protection * Connects up to 127 USB devices * 7 downstream (USB A) ports, 1 upstream (Mini USB B) port * Self powered and bus powered