Description: PC-USB adopts VT1630 with stable performance, high resolution, wide frequency support range, 16BIT mode, 44.1K-192k 24BIT mode, 44.1K-96K DAC chipset: CS8416+CS4398+OPA213 Amp chipset: OP275+TPA6120 Model: DAC-X6 Input interface: PC-USB/coaxial, optical fiber (with toggle switch) Output interface: 6.35mm headphone stand Line output, standard RCA interface Line level output: RMS 2V Output power: 90mw / 600?, 180mw / 300?, 450mw / 100?, 610mw / 62?, 910mw / 32?, 1000mw / 16? Signal to noise ratio: ?105dB Distortion: ?0.001% Frequency response: 20hz-20khz Adapter use voltage: 100-240ACV Machine power supply / adapter output voltage: Dc12V 1A or more Package Includes: 1x Optical/Coaxial/USB Audio Amplifier Note: Power Adapter is not included