2-Port USB SuperSpeed USB 3.0 PCI-E PCI Expansion Card is compliant with PCI Express 2.0 specification. This card is a pure expansion card which does not support any array. Only when it is used to card slot will it improve the operation speed. When it comes to its quality， employing advanced technology together with metal material， this expansion card is durable for long-term use. It supports plug and play. What is more， fast date rate of this card will make your device perform well!                                    Features             Compliant with USB3.0 specification revision 1.0<br> Support 2 downstream ports for all speeds<br> Available for SUPERSPEED(5Gbit/s)， supports low-speed(1.5Mbps)/ full speed(12Mbps)/high-speed(480Mbps)/super-speed(5Gbps)<br> Support PCI-E Power management specification<br> Support all USB compliant data transfer type as follows: control/bulk/interrupt/isochronous transfer<br> Compliant with Interl’s eXtensible Host Controller Interface (xHCI) Specification revision 0<br> Suitable for Windows 2000/XP/Vista/7   <br>                                                            Specifications             Version     Ordinary Capacitor Version    <br> Weight     1.48oz / 42g    <br> Material     PCB     <br> Chipset     UPD720202    <br> Dimensions     (4.72 x 3.34 x 0.86)" / (12 x 8.5 x 2.2)cm(L x W x H)    <br> Supports System     Win XP/2000/2008/Vista/7    <br> Interface     2 x USB 3.0，1 x SATA 3.0    <br> Transfer Rate     Supports Low-Speed(1.5Mbps)/Full Speed(12Mbps)/High-Speed(480Mbps)/Super-Speed(5Gbps)    <br> Compatible with     USB 3.0       <br>                                                             Package Includes            1 x Express Card<br>1 x CD Driver<br>