Welcome to our store! 1. Expandability: Add two USB 3.1 Gen 2 Type-C (10Gbps) ports to your new PC or older PCIe-equipped desktop. 2. Fast Transfer Speed: The expansion card with Asmedia chipset is equipped with 10Gbps bandwidth, ensuring fast data transfer speeds, the true speed of a single USB 3.1 port. 3. Compatible Slots: PCI Express 4X to USB 3.1 Gen 2 expansion card is compatible with PCIe x4, PCIe x8, PCIe x16 slots, but not PCIe x1, PCIe x2, or PCI slots. 4. Wide Compatibility: The Type-C expansion card supports Windows and Linux operating systems, is widely compatible, and is backward compatible with USB 3.0 and USB 2.0 devices. 5. PCI E to USB 3.1: The PCI expansion card can expand two more ports. The USB C interface only contains data signals, not video signals. Item Type: PCI Express 4X to USB 3.1 Gen 2 Expansion Card Product Material: PCB Chip Used: For Asmedia ASM1142, 3142 PCIE: X4 (supports X4, X8, X16 slots, cannot be used for X1 slots) USB C: 2 x USB C 3.1 ports, backward compatible with USB C 3.0, USB C 2.0, and USB C 1.1 Transfer Speed: Supports 10G, 5G, 480 Mbps, 12 Mbps, 1.5 Mbps data transfer speeds 1 x PCI Express 4X to USB 3.1 Gen 2 Expansion Card 1 x Metal Bracket 1 x Screw If you receive your item and find any product issues, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.