Extraordinary structure This is a PCI-Express card expanded 7* high speed USB 3.0 interface, if you need to use several USB external products at the same time, this express card will be your best choice. Product Features• Conformsto PCI-Express standard 2.0 version. • Conforms to Universal Serial Bus 3.0 standard. • USB 3.0 interface transfer rate could reach 5Gbps, downward compatible with USB 2.0/1.1. • It can be connected to 7pcs USB devices at the same time.• USB interface could offer 5V2A power supply to external device. • Big 4pin interface for optional power supply. • Supports Window2000/XP/VISTA/Win 7 / 8 / 10 and Linux.