<p></p> <p>PC-USB supports input sampling rate: 96K/24Bit</p> <p></p> <p>High and low sound adjustment range: ±6dB</p> <p></p> <p>Fiber/coaxial support input sampling rate: 192K/24Bit</p> <p></p> <p>Frequency response: 20Hz-20kHz (±3dB)</p> <p></p> <p>PC-USB support operating system: XP/W7/W8/W10/MAC/linux</p> <p></p> <p>Distortion: 0.01%</p> <p></p> <p>Amp output maximum power: 100mW 32Ω load</p> <p></p> <p>Signal to noise ratio: ≥105dB</p> <p></p> <p>Headphone matching impedance: 16-200Ω</p> <p></p> <p>Working voltage: DC5V</p> <p></p> <p>RCA output level: 2.3V</p> <p></p> <p>Size (L*W*H): 73.5*98*33MM (without knobs and terminals)</p> <p>Include: </p> <p>Fosi Audio DAC-Q4</p> <p>USB Charging Cable</p> <p>PC-USB Cable</p> <p>Optical Cable</p> <p>User’s Manual</p>