1. Microphone Audio Jack (Pink)
    This port connects to a microphone.

  2. Front Speakers (Lime Green)
    This jack will connect to the front audio speakers in your sound system. If you only have 2 speakers, use this port. This is also the correct jack for headphones.

  3. Line In Audio Jack (Light Blue)
    This port connects to an external audio source.

  4. Center / Subwoofer Audio Jack (Orange)
    This jack will connect to the subwoofer or center speakers in your 5.1 surround sound system.

  5. Rear Speakers (Black)
    This jack will connect to the rear speakers in your 5.1 or 7.1 surround sound system.

  6. Optical S/PDIF Out
    This port connects an external audio output device via an optical S/PDIF Cable.