Supports simultaneous operation of multiple USB 3.0 and USB 2.0 devices. Supports Windows 7/Vista/XP 32/64-bit, Server 2003-2008 32/64-bit
Bus-powered mode and no external power required for most peripherals
Molex power required. Data Transfer Rate: up to 5Gbps
Output: 5V/900mA MAX (each USB port). External Ports: 2x USB 3.0. Internal Ports: 1x 4-Pin Power Connector. Host Interface: PCI Express (PCI-E). Chipset: VIA VT800