The Optical to Analog Audio Converter (DAC) provides the ideal solution for converting an Optical digital audio signal to analog stereo audio. With support for audio sampling rates up to 192 kHz/24-bit, it provides high quality sound conversion. This unit is perfect for use in, computer audio systems or digital mixing consoles and can be powered from any spare USB port allowing it to be used with USB equipped HDTVs, Blu-ray players or computers without the need for a separate power supply.