The VisionTek USB 3.0 PCI Express Card allows you to connect multiple USB peripherals to your PC without the expense of replacing your motherboard.The USB 3.0 4-Port PCI Express Card enhances the performance of data transmission beyond existing USB 2.0.It is the ideal interface for transferring large amounts of data to/from USB 2.0/3.0 compliant devices such as external storage drives, HD AV streaming adapters, and much more.