Stable Transmission: The PCI E 4X extension card uses the ASMedia ASM3242 main controller for stable transmission. High-Speed Rate: The highest speed of the USB 3.2 expansion card can reach 20Gbps. The motherboard must support PC1 E3.0 4X, and the hard drive enclosure and TYPE C cable must also be 20Gbps. Wide Compatibility: The PCI E to USB 3.2 expansion card is part of the USB3.2 GEN2x2 standard and is backward compatible with USB 3.0 and USB 2.0. Plug and Play: The USB 3.2 expansion card is a 4X interface that can be plugged into 4X, 8X, 16X slots, plug and play. Support System: The USB3.2 expansion card only supports Windows 10, Windows 11 and higher. The system comes with the driver, no separate installation is needed. Item Type: PCI E to USB 3.2 Expansion Card Material: PCB Master Control: For ASMedia ASM3242 Maximum Transfer Rate: 20 Gbps Interface: Single Port TYPE C Support System: For Windows 10, For Windows 11 32 64BIT, For IOS, For Llinux Includes: 1 x PCI E to USB 3.2 Expansion Card, 1 x Short Stopper Customer Satisfaction: Our customers are our top priority. If you encounter any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.