Supports all motherboards with USB 3.0 / 3.1 19-pin header Adds internal 20-pin Key A connector for supporting corresponding front USB Type-C port USB 3.0 internal (19-pin) to USB 3.1 / 3.2 internal Type-C 20-pin (Key A) Internal Type-C 20-pin (Key A) port supports USB 3.1 / 3.2 (Gen2 / Gen1), USB 3.0, USB 2.0 and USB1.1 devices