USB3.1 high- , reads and writes in seconds to transfer all kinds of large files, open instantly and without waiting. Supports the new PCI-E 3.0 specification and is backward compatible with the PCI-E 2.0 specification. Applicable interfaces: PCI-E 2X, PCI-E 4X, PCI-E 8X, PCI-E 16X. Features - Color: Black. - Size: 12.00X8.50X2.00cm/4.72X3.34X0.79in - Material: PCB. - Add two USB 3.1 type-C (10 ) ports to your new PC or older PCIe-equipped desktop computer - With support for , , and operating systems, this USB C PCI express adapter is widely compatible. - With support for data transfer up to 10 , this expansion card is a necessity for external drives, and is great for file backups, video editing, and data recovery. - Support for WinXP, , Win8, Win10, . - It is necessary for the connector to be placed on the back of the card. If the connector is placed on the tops side, it will interfere with the fan of the graphics card. Package list: 1 x Expansion Card