The USB 3.1 port interface is using the USB 3.0 pin set and more. It is design to be backwards compatible (will explain later).
USB 3.1 require a different front panel header than USB 3.0.
USB 3.1 Front Panel Header Male to Female Type-E Motherboard Extension Data Cable 50cm
Connector1: Type-E male USB 3.1 Front Panel Header 10Gbps
Connector2:Type-E Female USB 3.1 Front Panel socket 10Gbps