This high-quality Digital Audio Converter (DAC) delivers upgraded sound to any USB compatible computer. The USB DAC is ideal when used to bypass the low-grade internal sound card in your computer, adding a higher fidelity to your digital music library. Included with this DAC is a unique music player software package incorporating Direct Streaming Technology that outputs an exact bit-copy of the original source by resampling the Kernel Mixer of your PC. The software is compatible with Windows®, MacOS® and Linux® operating systems. 24-bit / 96kHz D/A conversion with 8X oversampling. Front panel input selector for 1 SPDIF and 1 TOSLINK digital input. 1 pair of RCA analog outputs. An outboard power supply is included.