SEDNA PCIE USB 3.1 2-Port Type A Adapter ( 10 Gbps ) with Low Profile Bracket Type: PCI Express to USB Card External USB Ports: 2x USB Ports Operating Systems Supported: Windows Vista / 7 / 8 /8.1 Compatibility: USB 3.1,usb 3.0, USB2.0 Package Contents: 1 x PCIE USB 3.1 adapter, 1 x Driver CD, 1 x Low profile bracket