Ethernet streaming and occasional white noise on Windows

[Antoine]

The regular 5m USB cable length limit can be circumvented by using either an active USB cable that boosts the signals or by using a optical converter like Adnaco offers or the optical USB cables that Corning makes.. (note that these cables still have copper conductors inside to power the optical plugs, so no full isolation of dirty computer power/ground planes) or of course a cable that is specified and tested to be reliable over longer lengths.

I agree with Guillaume though, I'd also use the highest quality and shortest USB cable possible or if that's not feasable a very high quality optical converter like the Adnaco S3B. It's very important that the Devialet receives the cleanest USB signal+power/ground as possible, it matters a lot for sound quality. The XMOS receiver inside the Devialet needs the USB ground conection active. Active USB cables can wreak havoc on the power/signal quality and optical converters can add a lot of jitter and/or dirty the signal/ground plane as well.