Features: USB3.2 Type-C PCI-Express expansion card for laptop supports PCI-Express X4 XX6 Lanes With USB3.1 Type-C x 4 ports & USB3.1 Type-A x 4 ports High-performance ASM3142 chip, can transfer up to 10Gbps+10Gbps Supports USB 3. 2 Backward compatible with USB 1.1/USB 2.0./USB3.0/3.1 Our expansion card features a high-performance PCIe interface, ensuring maximum bandwidth and throughput for all your connected devices. Enjoy dual 10Gbps fast data transfer speeds and seamless connectivity with all your favorite UsbC devices. Specifications: Product Model: ULS-UP10084 Expansion Interface: USB3.1 TypeC x 4 & USB3.1 Type-A x 4 Product Chip: ASM3142 Speed: Dual-10G Applicable Interfaces: PCI-E4X, PCI-E8X, PCI-E16X (Note: for PCI-E 1X slot is not supported) System Requirements: for Windows2000/XP/Vista-/7/10 Size: As pictures Note: There may be 1-2 cm error in size for manual measurement. Color deviation may vary due to different monitor settings, please understand. Package includes: 1PC PCIe US3.1 Expansion Card 1PC Driver Disk 1PC Instructions 2PCS Screw 1PC Color Box