The DP USB 3.0 4-Port PCIe i/e Adapter Card from SIIG is the dual profile card you are looking for to instantly add four additional USB 3.0 ports to your Windows PC.
Its USB 3.0 interface delivers data transfer rates up to 5Gb/s, and allows you to work with devices such as external hard disks, high resolution Webcams, video surveillance cameras, and multi-channel audio devices.
Lastly, the DP USB 3.0 4-Port PCIe i/e conforms to Universal Serial Bus 3.0 specification, and the PCI Express Base specification, revision 2.1.
Adds 4 SuperSpeed USB 3.0 ports
Supports data transfer rate up to 5Gb/s
Per port over-current protection feature
Dual profile design to work with full height and low profile chassis with included brackets