HornetTek Falcon USB 3.1 to PCIE Card Dual Type - A Ports 10 Gbps Max Super Speed Plus USB 3.1 supports transfer speed of up to 10 Gbps with USB 3.1 devices Backwards compatible with USB 3.0, USB 2.0 and USB 1.1 devices. Full height PCI-E Gen 2 X 4 add-on card with 2 port USB 3.1 Type-A Interface Support driver for WIndows 7, Windows 8 and Windows 8.1 Item ships directly from California, USA. 1-Year Full Manufacturer's Warranty.