How do I convert the DVI-D output port on this device to VGA, HDMI or DisplayPort?

This device has a DVI-D connector and is only compatible with digital DVI video signaling. For more information about the different DVI connectors, refer to the following FAQ: https://www.startech.com/faq/video_signal_converters_dvi_interface . Target connection Conversion VGA DVI to VGA: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=DVI-D&filter_AVOUTPUT=VGA . HDMI DVI to HDMI: https://www.startech.com/Cables/Audio-Video/HDMI/HDMI-to-DVI/ . DisplayPort DVI to DisplayPort: https://www.startech.com/AV/Converters/Video/?filter_AVINPUT=HDMI&filter_AVOUTPUT=DisplayPort .