Features: Supporting interfaces: The Converters plug supports all Motherboards USB3.0/3.1 (19Pin) interfaces. Access port: The front panel adapter can be connecteds to the USB Type C output terminals of the front I/O panel. Interfaces conversion: Connect the USB3.0 internal 19pin front panel adapter to USB 3.1/3.2 internal TYPE C 20pin adapter. Internal: The internal 20Pin (KeyA) adapter supports, USB3.0, USB 2.0, and USB 1.1 devices. No need to install driver: No need to install driver, and easy to expand Motherboards functions, and not waste the Type C interfaces of the chassis. Specifications: Material: ABS Side length: 25mm/0.98inch Style: PH73A,PH73B(optional) Transfer speed: USB3.1G2 up to 10Gbps (depending on the host's transfer speed) Package Includes: 1PC USB3.0 19/20P to TypeE Adapter note: Please allow 0-1cm error due to manual measurement. make sure do not mind before bid. Due to the differenceS between different monitors, the picture may not reflect the actual of the item.