ORICO USB 3.0 PCI Expansion Card Adapter with 5 Rear USB3.0 Port Hub and Internal USB3.0 19PIN Connector with VL805 and VL812 Controller for Windows Vista PC Laptop (PVU3-5O2I) Supports: Windows XP, 2003, Vista, 2008, 7, Windows 8 32 Bit or 64Bit with WHQL certified driver Featuring: SuperSpeed USB 3.0 supports transfer rates of up to 5Gbps - The actual transmission speed is limited by the device connected Technical: VL805 USB3.0 host controller and VL812 USB3.0 Hub controller Appearance: 5 USB3.0 ports and 1 19PIN connector(can expand other USB3.0 ports), plus big 4PIN power connector for stable power supply Package Contents: 1 x PCI Card, 1 x Driver CD, 1 x Mounting Screw; We provide 18 Months warranty and lifetime technical support for all purchase from ORICO Direct Store