Innuos Zenith Mk3 Ultra-low Noise USB Audio Output, Really?

The MB on the Innuos Zenith Mk3 looks like a standard MB with a good LPSU.The output on the back are all outputs from the MB.
The brochure has this statement "Ultra-low Noise USB Audio Output" is it true? I am not an expert so I hope someone on this forum can help me out.