It's a competitor's product, but they do their job well. i2s transmission from pc directly to the dac. definitely sounds different than a usb connection. we tried that, more relaxed and finer sound . more definition in bass you hear more gradations and between tones. just a recommendation from me. with standard cable usb and hdmi used by the same manufacturer.What specifically are you referring to?

Pink Faun I2S Bridge - Pink Faun
The Pink Faun I2S bridge realizes a high-quality I2S (PCM) connection between the music computer and the DAC. Read more here.