TEAC NT-503 Dual-Monaural USB DAC/Network Player (Black) High-quality Audio Circuits render the fine texture of music High-precision 44.1kHz and 48kHz On-board Internal Clocks, and 10MHz External Clock Input PCM/DSD Filters Provide a Multifaceted Personality from a Single Unit All-new Dual-monaural Circuit Design for Outstanding Performance Hi-Res Audio Playback from PC via USB Cable