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This PCI Express X1 to dual 20Pin USB3.0 header expansion card is engineered to solve insufficient motherboard internal USB3.0 header issues for mainstream desktops, compatible with all Intel & AMD platform motherboards from ASUS, MSI, GIGABYTE, ASRock, as well as branded prebuilt PCs of Dell, HP, Lenovo and industrial control hosts. Built-in reliable main controller chip enables max 5Gbps SuperSpeed USB3.0 transmission, 10x faster than USB2.0 for fast file transfer of U disk, mobile hard drive and front panel USB devices. Included standard full-height & low profile half-height brackets satisfy full-tower, MATX and slim SFF mini case installation demands. Adopts PCIe bus power supply without additional external power cord to simplify internal chassis wiring. Plug-and-play driver-free installation under mainstream Windows and Linux systems, supporting hot plug function to freely connect front panel USB fans, card readers and other USB3.0 equipment, ideal for DIY PC upgrade, industrial equipment expansion and old PC interface renovation.