Converts the motherboard's available PCI-E 1x to USB 20 Pin Motherboard Header Expand PCIe slot to USB 3.2 20Pin internal header for front panel or rear panel Expand PCIe to one USB 3.2 Type-E A Key and USB 3.0 20Pin Headers Supports transfer rates up to 5Gbps Compatible with PCIe x1, PCIe x4, PCIe x8, PCIe x16 Slot Compatible with Windows XP, WIN7, WIN8, VISTA, WIN10, WIN11 32BIT/64BIT, LINUX OS System