Adding Parts 51Line-Out ConnectorUse the green line-out connector (available on computers with integratedsound) to attach headphones and most speakers with integrated amplifiers.On computers with a sound card, the line-out connector is on the card.Microphone ConnectorUse the pink microphone connector (available on computers withintegrated sound) to attach a personal computer microphone for voice ormusical input into a sound or telephony program.On computers with a sound card, the microphone connector is on the card.USB ConnectorsHINT: If you attach aUSB device that was notincluded in your originalcomputer order, you mayneed to install a specificdriver to make the devicework. Check thedocumentation that camewith the device or contactthe USB devicemanufacturer for moreinformation.Connect USB devices, such as USB digital cameras, gaming controllers, andscanners to these connectors.Keyboard ConnectorIf you have a standard keyboard, plug the keyboard into the purple keyboardconnector. If you have a USB keyboard, plug it into a USB connector.Video ConnectorPlug the cable from your monitor into the blue video connector.Parallel ConnectorConnect a parallel device, such as a printer, to the parallel connector. If youhave a USB printer, plug it into a USB connector.Serial ConnectorConnect a serial device, like a handheld device, to the serial connector.Voltage-Selection SwitchSee "Safety Instructions" on page 7 for voltage setting information.