Lenovo K4 Series User Guide V1.0
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... connector (optional) Only supported on systems with built-in amplifiers), headphones, multimedia keyboards, or the audio line-in connector on your computer is equipped with a wireless keyboard or mouse, follow the installation instructions for those devices. Ethernet connector Use this connector to attach a device that use a DisplayPort connector. User Guide 7 DisplayPort...
... connector (optional) Only supported on systems with built-in amplifiers), headphones, multimedia keyboards, or the audio line-in connector on your computer is equipped with a wireless keyboard or mouse, follow the installation instructions for those devices. Ethernet connector Use this connector to attach a device that use a DisplayPort connector. User Guide 7 DisplayPort...