Includes an internal 20-pin USB 3.1 Gen 2 connector, Recommended to use with the USB-C Type Panel Cable Mount Motherboard Header Extension Adapter (B07DV86Y4Z) USB3.1 Gen2 high-speed transfer, 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. The master controller has passed the USB-IF certification, which corresponds to the new version 1.1 of the USB3.1 specification formulated by Intel. Integrated all-solid capacitor, equipped with high power, high quality electrical components, all metal heatsink, increase anti-interference ability, improve data transmission stability, and keep cooling. Support for WinXP, Win7, Win8, Win10, Linux OS system. It is necessary for the connector to be placed on the back of the card.