PCI-E Card uses x1 interface - will fit in x1/x4/x8/x16 slot, i.e. any kind of PCI-E slot. Capable of outputs up to 7.1 surround sound, including headphones, 2.0, 2.1, 5.1 etc. Output Total Harmonic Distortion + Noise at 1kHz (-3dB) : 0.00056% (-105dB) for Front-out.
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