Features: 1. The PCIe USB3.0 expansion card uses the NEC master chip - D720200AF1. 2. The expansion card complies with the USB 3.0 specification Revision 1.0. 3. Supports USB 3.0 Super-Speed (5Gbps) and High-Speed (480Mbps) and Full-Speed (12Mbps). 4. This USB3.0 is a dual-port expansion card consisting of an internal USB3.0 19Pin. 5. The USB3.0 Housing 19Pin pin header can be extended to the front panel of the chassis to extend the two USB3.0 AM ports. Convenient for your various extended applications and assembly. 6. Compliant with PCI-Express Specification 2.0, conforms to USB3.0 SuperSpeed Specification Version 1.0, and conforms to xHCI Specification 0.95. 7. The main control chip: D720200AF1 has a maximum transmission rate of up to 5Gbps and stable performance. 8. Backward compatible with USB2.0, USB1.1, USB1.0. 9. Support USB hot plug function. 10. Support for Windows2000/xp/vista/7-32-bit and 64-bit systems. Specification: Material: ABS Color: Black Transmission rate: 5000/480/12/1.5Mbps USB power output: up to 5V 900mA Package List: 1 * Expansion Adapter Card 1 * CD 1* Iron Piece 1、Compliant with PCI-Express Specification 2.0, conforms to USB3.0 SuperSpeed Specification Version 1.0, and conforms to xHCI Specification 0.95. 2、The main control chip: D720200AF1 has a maximum transmission rate of up to 5Gbps and stable performance. 3、Backward compatible with USB2.0, USB1.1, USB1.0. 4、Support USB hot plug function. 5、Support for Windows2000/xp/vista/7-32-bit and 64-bit systems.