SE-PCIE-USB3-2 PCIE USB 3.0 2 Port Adapter Specifications : Supports 2 external USB3.0 port Each port provides DC 5V 1A via USB 3.0 connector Transfer Rate: 5Gbps 480Mbps, 12Mbps Fully compatible with USB2.0 , USB 1.1 Supports Windows 2000/XP/2003/Vista/7 Built-in NEC Chipset Package contents : 1 x PCIE USB 3.0 adapter 1 x User Manual 1 x Driver CD