Fully compliant with PCI Specification Revision 2.0, single- (x1) PCI throughput rates up to 2.5Gbps Compliant with Universal Serial Bus 3.0 Specification Revision 1.0, supports simultaneous operation of multiple USB 3.0, USB 2.0 and USB 1.1 devices The following speed data rates are supported: Low Speed (1.5Mbps)/Full Speed (12Mbps)/High Speed (480Mbps)/Super Speed (5Gbps) Supports 2 downstream ports for all speeds, -in 4-pin connector for receiving additional from the system Hot-swap feature allows you to /disconnect devices without powering the system Type: Riser Card Bus Type: PCI Revision 2.0, Single (X1) Main Chipset: NEC720200 Media Interface: 2 x USB3.0 ports Media Interface: 1 x 4PIN Connector Transmission rate: low speed (1.5Mbps)/full speed (12Mbps)/high speed (480Mbps)/super speed (5Gbps) Operating system: Win 10/Win 8/Win7/Vista/XP/2000/ME/98SE/Server2003-2008 32/64-bit Linux, DOS One available PCIe X1 card slot onboard Material: PCB Color: Green Package Contents: 1 x Expansion Card 1 x CD 1 x Short Iron Piece Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.