Question About "USB 3.2 Gen 1 to USB 3.2 Gen 2 header adapter"

Posted by cj92183@reddit | buildapc | View on Reddit | 65 comments

On PC part picker, the compatibility note says:

Corsair 4000D Airflow ATX Mid Tower Case has a front panel USB 3.2 Gen 2 Type C port that can connect to the MSI X470 GAMING PRO ATX AM4 Motherboard USB 3.2 Gen 1 header. A separate USB 3.2 Gen 1 to USB 3.2 Gen 2 header adapter will be required.

Can someone explain what this means to me? And if possible provide a link to a " USB 3.2 Gen 1 to USB 3.2 Gen 2 header adapter." I'm quite confused.

Thank you!