This DVI Video + S/PDIF audio to HDMI® converter combines your DVI-D digital video with your S/PDIF Digital Coax or Digital Optical Toslink Audio signal from your source devices and outputs them in HDMI® format. This allows you to connect your legacy DVI High Def Video sources to your newer HDMI® HDTVs and A/V receivers. No need to replace the high end video player you bought only a few years ago just because it doesn't support HDMI®. Reduces the clutter by combining the digital video and audio output of your device into one HDMI® cable.HDMI, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.