Front four-port USB3.0 expansion card Directly lead from the PCI-E to the front of the chassis, more stable and more convenient, the front port can use four hard drives at the same time.The PCI-E interface is ultra-low 90 degrees. The interface is blocked and does not affect the use of the interface.With self-powered module, no external power supply, all solid capacitors Each port has a separate interface protection insurance.Support system: Windows XP 32/64 Windows 7 32/64 Windows8 Windows8.1 Windows10Specification:Type: PCI-E 1X to Front 4 Port USB 3.0Card TrayChipset: NEC720201Bus Modes: PCI-E X1interfaceCompatible Slot: PCI-E x1/x4/x8/x16USBPortTransfer Rate: USB3.0 5Gbcolour: as shownMaterial: ABSPackage Contents:1 x Usb Expansion CardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.