One Step Update your Windows or Linux Computer to USB3.0 Easily with PCI Express to USB3.0 Controller Adapter Card * Gen2 VL800 Super Speed USB3.0 Host Controller from Via-Labs Enable 4x USB3.0 Hosts offer Transfer Rates Up To 5Gbps , 10x Faster of USB2.0 * Filtering Unit with Solid Capacitors offer a Reliable and Secure Connectivity , Fit in any PCI-Express x1 , x2 , x4 , x8 or x16 Socket , Compliant with PCI Express Base Specification 2.0 * Compatible with Windows XP , 2003 , Vista , 2008 , 7 and Windows 8 32 Bit or 64 Bit with WHQL Certified Driver , Compatible with Various Linux Kernels with Nature Driver * 7x24 Customer Care Team and Free Lifetime Technical Support.18 Month Warranty on Parts and Labor from ORICO or ORICO Direct Store