Back ViewBack to Contents Page1 mouse connector Plug a standard mouse into the green mouse connector. Turn off the computer and any attached devices before you connect amouse to the computer. If you have a USB mouse, plug it into a USB connector.2 diagnostic lights (4) Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more information, see "DiagnosticCodes."3 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connector.4 line-in connector Use the blue line-in connector to attach a record/playback device such as a cassette player, CD player, or VCR.5 network adapterconnectorConnect a network cable to the network adapter connector.6 PCI card slots (3) Use these slots for a PCI card, such as a modem.7 USB 2.0 connectors(4)Connect a USB device such as a mouse, keyboard, printer, joystick, or speaker system into any of the USB connectors.8 microphoneconnectorUse the pink microphone connector to attach a personal computer microphone for voice or musical input to a sound or telephonyprogram.9 line-out connector Use the green line-out connector to attach headphones and most speakers with integrated amplifiers.10 video connector Plug the cable from your monitor into the blue connector.11 serial connector Connect a serial device, such as a handheld device, to the serial connector.12 keyboard connector If you have a standard keyboard, plug it into the purple keyboard connector. Turn off the computer and any attached devicesbefore you connect a keyboard to the computer. If you have a USB keyboard, plug it into a USB connector.13 voltage selectionswitchSee the safety instructions in your Owner's Manual for more information.14 power connector Connect the power cable.