5ASUS Xonar D2No Item Description1 Microphone Jack Connect your external PC microphone to this 3.5mm jack forvoice input. Built-in high-quality Microphone pre-amplifier.2 Line Input Jack Connect analog devices like MP3 players, CD players,music synthesizers and other line-level sound sources tothis 3.5mm jack for audio recording or processing. (ThroughUltra-high fidelity 118dB SNR A-D converter)3 Headphone/FrontOutput JackConnect your headphones or 2/2.1 channel speakers to thisjack. For multi-channel speaker systems, connects to thefront left/right input on the powered speakers.4 Side Surround OutputJackConnects to the surround channel input on 4/4.1/5.1/6.1/7.1powered analog speakers.5 Center/SubwooferOutput JackConnects to the front center/subwoofer input on 5.1/6.1/7.1powered analog speakers.6 Rear/Back SurroundOutput JackConnects to the Back Surround input on 6.1/7.1 poweredanalog speakers.7 S/PDIF Input Coaxial and optical TOSLINK combo digital input jack.Connects to external digital audio sources such as MDplayers, CD players, or DVD players, for audio recording orloopback.8 S/PDIF Output Coaxial and optical TOSLINK combo digital output jack.Connects to external digital decoder or digital speakersystems, Home Theater systems, AV receivers for outputtingdigital audio including PCM, Dolby Digital, DTS, WMA-Pro,etc.9 CD Input Header 4-pin header. Connects to the Analog Audio output on theback panel of CD/DVD-ROM drive using an Analog CDaudio cable, which is usually available with your CD/DVD-ROM drive. You can still play CD audio through the Xonardriver without connecting this. We recommend playing audiothrough the driver to take advantage of the Xonar’s highquality D-A converter, but this header is provided in case youneed it.10 Aux Input Header 4-pin header. Usually connects to the Analog Audio output ofTV tuner card or other sound source inside your PC system.(To monitor your TV tuner card’s audio from this Aux-In, youmust enable the “monitor” function for Aux-In in the XonarAudio Center software’s recording mixer.)11 MIDI I/O Header Connects to the additional MIDI board/bracket (available inthe package)12 Main Audio Processor ASUS Xonar AV200 Audio Processing Unit (DuplexHD192K/24bit)13 PCI Bus GoldenFingersConnects to the PCI slot on your motherboard