(12) Line_Out/MIC Header for Front Panel (9-pin): AUDIO
These headers connect to Front Panel Line-out, MIC connector with cable.
(13)
USB Port Headers (9-pin): F_USB1, F_USB2
These headers are used for connecting the additional USB port plug. By
attaching an option USB cable, your can be provided with two additional USB
plugs affixed to the back panel.