Product description RIITOP PCIe x4 to Dual USB-C Adapter Card 10Gbps per Port, Full Speed on Both Ports PCIe to USB C Card Dual Port PCI Express PCIe 3.0 x4, Compatible with PCIe x4/x8/x16 Slot USB Ports 2 x USB-C (Female) Transfer Rate Up to 10Gbps per port (USB 3.2 Gen 2) Total Bandwidth Both ports share the PCIe x4 total bandwidth (~10Gbps) Power Input PCIe slot + SATA 15Pin power (Required) Compatible Devices USB-C flash drives, external HDDs/SSDs, Headsets, Capture cards, hubs, etc Not Supported Video output (DP Alt Mode) OS Compatibility Win11/10/7/8 32/64bit/Lunix