The HDMI to DVI Audio Adapter is a unique device that converts the HDMI signal to a digital video DVI (DVI-D) output and a digital audio TOSLINK output. This adapter lets you connect your HDMI source to a DVI HDCP display and enjoy high quality digital audio at the same time. With the HDMI to DVI Audio Adapter, home theater devices and computer systems can easily be connected to any DVI display for the full digital video and audio experience.