ITEM NAME:USB 3.0 Expansion Card 4 Port PCI-E to USB3.0 Computer Expansion Card Board Product Description Description: Features: Each interface has an independent interface protection insurance Each interface has an independent voltage regulator, Stable power supply The capacitor is a solid-state patch that can withstand 250 degrees of high resistance It adopts heavy metal technology, good conductivity and strong oxidation resistance Specifications: Type: 4 port USB3.0 extension card Chip: vl805 Compatible PCI-E X1-X4/X8/X16/Port USB interface: 4 X USB3.0 Transmission rate: 5Gb/s Power interface: 4pin Support operating system: Windows XP 32/64 Windows 7 32/64 Windows 8 Windows8.1 Windows10 Product net weight: 47g Product gross weight: 83g Product size: 120 X 66 X 22mm Package size: 145 X 125 X 25mm Included: 1 X PCI-E USB3.0 Extension Card 1 X Screw 1 X Packing Box.Type: 4 port USB3.0 extension card. USB interface: 4 X USB3.0. Included: 1 X PCI-E USB3.0 Extension Card. The capacitor is a solid-state patch that can withstand 250 degrees of high resistance. Power interface: 4pin.