New USB 3.0 PCI-E Expansion Card Adapter External 2 Port USB3.0 Hub Internal 19pin Header PCI-E Card 4pin IDE Power Connector About Description: Features: 1.USB 3.0 supports transfer rates of up to 5 Gbps. 2.Each interface is equipped with an independent voltage regulator capacitor, which can ensure that the interface power supply is stable and can withstand a high temperature of 250 degrees! 3.Compatibility:for Win xp/Vista/win7win8, win10 and other mainstream systems 4.With IDE 4Pin Power Supply Connector and the back end of the card is equipped with a USB3.0 19PIN pin header 5.Easy to install in the chassis slot for better contact and easy data transfer. Specification: Product name: U3V212 Chipset Model: VL805 Bus Type: PCI-E x1 Compatible Slots: PCI-E x1 / x4 / x8 / x16 Network interface type: 2*USB3.0; 1*large 4P power interface; 1USB3.0 pin header USB Interface: 2 USB3.0 ports Transmission Rate: USB3.0, 5Gb / s Support Operating System: Windows XP 32/64, Windows 7 32/64, Windows8, Windows8.1, Windows10 Package Weight: 80g You'll receive: 1 x PCI-E To USB3.0 Expansion Card 1 x Screw 1.USB 3.0 supports transfer rates of up to 5 Gbps. 2.Each interface is equipped with an independent voltage regulator capacitor, which can ensure that the interface power supply is stable and can withstand a high temperature of 250 degrees! 3.Compatibility:for Win xp/Vista/win7win8, win10 and other mainstream systems 4.With IDE 4Pin Power Supply Connector and the back end of the card is equipped with a USB3.0 19PIN pin header 5.Easy to install in the chassis slot for better contact and easy data transfer.