ITEM NAME:2-Port Superspeed Usb 3.0 Pci-E Pcie Pci Express 4-Pin Ide Expansion Connec Z1B9 2-Port Superspeed Usb 3.0 Pci-E Pcie Pci Express 4-Pin Ide Expansion Connec Z1B9 Interface Type:PCI,PCI Express Supports PCI Express2.0 X 1Lane, can transferring up to5Gbps MAX. Supports USB 3.0 specfication typeA Connector X 2ports. Backward compatible to USB 1.1/USB 2.0. Supports tHe following speed data rate: Low-speed(1.5Mbps)/Full-speed(12Mbps)/High-speed(480Mbps)/Super-speed(5Gbps). Suppots PCI Low profile. Supports External power plug in order to supplying power for each USB3.0. Up to 900mA MAX/port. Colour:black Material:Plastic + metal Size:12 * 6.5*1.9cm Package Contents: 1* expansion card 1* half height baffle 1* driver CD.Suppots PCI Low profile. Backward compatible to USB 1.1/USB 2.0. 1 expansion card. Supports USB 3.0 specfication typeA Connector X 2ports.