The Digital to Analog Audio Converter with Dolby Digital Decoder provides the ideal solution for converting an optical digital audio signal to analog stereo audio. With audio sampling rate support up to 48 kHz (Dolby Digital) or 96 kHz (LPCM) and input data rate support up to 24-bit, it provides high quality sound conversion. The Dolby Digital Decoder function guarantees that Dolby Digital audio signals are downmixed to analog stereo without loss of quality. This unit is perfect for use in digital recording systems, computer audio systems, or for digital mixing consoles. The unit 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.