Back to Contents Pageadapter connector on your computer. A click indicates that thenetwork cable has been securely attached.On computers with an additional network connector card, use theconnectors on the card and on the back of the computer whensetting up multiple network connections (such as a separate intra-and extranet).NOTE: It is recommended that you use Category 5 wiring andconnectors for your network. If you must use Category 3 wiring,force the network speed to 10 Mbps to ensure reliable operation.3 network activitylightFlashes a yellow light when the computer is transmitting orreceiving network data. A high volume of network traffic may makethis light appear to be in a steady "on" state.4 USB 2.0 connectors(2) (rear dual)Use the back, rear-dual USB connectors for devices that typicallyremain connected, such as printers and keyboards.NOTE: It is recommended that you use the front USB connectorsfor devices that you connect occasionally, such as joysticks,cameras, or bootable USB devices.5 USB 2.0 connectors(4) (rear quad)Use the back, rear-quad USB connectors for devices that typicallyremain connected, such as printers and keyboards.NOTE: It is recommended that you use the front USB connectorsfor devices that you connect occasionally, such as joysticks,cameras, or bootable USB devices.6 surround soundconnectorUse the (black) surround sound connector to attach multichannel-capable speakers.On computers with a sound card, use the connector on the card.7 line-in connector Use the (blue) line-in connector to attach a record/playback devicesuch as a cassette player, CD player, or VCR.On computers with a sound card, use the connector on the card.8 line-out/headphoneconnectorUse the (green) line-out connector to attach headphones and mostspeakers with integrated amplifiers.On computers with a sound card, use the connector on the card.9 microphoneconnectorUse the (pink) microphone connector to attach a personalcomputer microphone for voice or musical input into a sound ortelephony program.On computers with a sound card, use the connector on the card.10 center/subwooferLFE connectorUse the (orange) center/subwoofer connector to attach a centerspeaker or a single subwoofer.On computers with a sound card, use the connector on the card.NOTE: The LFE (Low Frequency Effects) Audio channel, found indigital surround sound audio schemes, carries only low frequencyinformation of 80 Hz and below. The LFE channel drives asubwoofer to provide extremely low bass extension. Systems notusing subwoofers can shunt the LFE information to the mainspeakers in the surround sound setup.11 side surroundsound connectorUse the (gray) side surround sound connector to attachmultichannel-capable speakers. The side-surround output providesenhanced surround audio for computers with 7.1 speakers.On computers with a sound card, use the connector on the card.12 S/PDIF connector Use the S/PDIF connector to transmit digital audio without goingthrough an analog audio conversion process.On computers with a sound card, use the connector on the card.