Features: USB3.2 Gen2x2 standard, 20Gbps bandwidth, which ensures fast data transmission. This expansion card is a necessity for external drives and great for file backup, video editing, and data recovery,anddownward compatible with USB3.0 and USB2.0. Equipped with SATA 15pin power backup interface, provide you with powerful power supply capability, applicable to most chassis power supplies, no need to worry about power matching problems. Add a USB 3.2 Gen2X2 type-C (20Gbps) port to your new computer or old desktop computer equipped with PCIe, cost-effective solution to add 20Gbps connectivity to your computer. Good compatibility, PCIe x4(3.0), PCIe x8, PCIe x16, supports Windows10/11 32/64 Bit/Linux, no driver needed. Specifications: Material: Printed Circuit Board Name: USB3.2 Gen2x2 20Gbps Type-C Expansion Card Main Control: ASM3242 Support System: Supports for Windows10/11 32/64 Bit/Linux Package Includes: 1x PCI-E Adapter Card note: Please allow 0-1cm error due to manual measurement. make sure you do not mind before you order. Please allow slight chromatic aberration due to different display resolutions.