This USB 3.0 PCI-E extender board supports many kinds of computer OS and it is easy to connect and use.This PCI-E to USB expansion card allows you to connect with many kinds of USB devices.This 4 ports PCI-E adapter card makes your computer can have 4 more USB 3.0 ports.This USB 3.0 PCI-E expansion card can a high data transmission speed and it is compatible with USB 2.0 and USB 1.1.This PCI-E to USB adapter features a 4pin port. You can connect the adapter card with an extra supply.Supported OS: Replacement for Windows 7(32/64 bit)/Vista(32/64 bit)/XP/8/10.Main control chip: VL805.BUS type: PCI-E.Interface: 4x USB 3.0, 1x 4pin port.Transmission speed rate: Less than 5Gbps.Colour:blackMaterial:plasticPackage Contents:1 x PCIE Adapter CardOnly the above package content, other products are not included.Note: Light reflection 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.