Which USB Cable to buy

And to get my 500th post, lol.....

I found that USB cables with separated (isolated) 5v lines to be sonically better to those that did not have it separated.

There's a Verastarr Nemesis USB cable listed here now, at a really nice price (no affiliation with the seller, yada, yada, etc.), which is an EXCELLENT USB cable. I have been using one for the last couple of years, and in direct comparison, I preferred it (IN MY SYSTEM!) to a Curious, Synergistic Research with a Galileo MPC with 3 various plugs, and an Audience AU24 SE (which was nearly the same, and equally excellent in its own right).

As for the second - there is no jitter involved at all since your DAC has asynchronous USB input, meaning that timing/clock of the data has nothing to do with timing/clock of the DAC

That's not 100% true although asynchronous does reduce jitter considerably.  An inferior USB cables can transmit ground noise from the computer to the DAC clock ground which effectively could induce jitter to the DAC clock.

I use a TotalDac USB cable and found it immediately profound in its benefits about 4 years ago now. I like my Jena cables and may try one of theirs someday.

Purist Audio is good. using quality cables is important.

I had very good results with the Lavricables separated USB.  Super price too no bs.

Curious, Phasure, Purist Audio, Clarity, SOtM all have good USB cables.

Echolane, Try different USB cables before you buy. There is a chance that it won’t make any difference. Guy who made video, in the link you posted, is a little bit confused. He describes two things that might happen to digital USB signal: bits might not be recognized properly or timing jitter will convert to noise. As for the first - you need only cable with good shielding and no power wires. As for the second - there is no jitter involved at all since your DAC has asynchronous USB input, meaning that timing/clock of the data has nothing to do with timing/clock of the DAC. DAC receives data in packets (frames) at about 1kHz rate and places this data into buffer, signaling back to computer buffer under/overflow status to which computer adjusts size of the next frame. DAC takes data from this buffer at its own clock rate. The only jitter involved is internal clock jitter that is affected by the system noise. USB cable might inject some noise into the system but it is more likely dependent on you DAC sensitivity to it, cable design and not the fancy materials or high price. It is possible that you will hear difference between USB cables, but there is also possibility that you will hear none. Don’t spend a lot of money before you try. You can also investigate USB conditioners that will rebalance, reclock and possibly even add optical isolation between computer and the DAC.

(He also talks about extremely low USB 2.0 input levels and bits being not recognized properly because of electrical noise, but forgets to mention outputs levels, where high level is 2.8-3.6V.  In addition it is differential)

RCA, Bob thinks the USB version sounds as good or better, email him.

@rx8man 

Are you referring to the Black Magic usb cable from Mad Scientist?

2nd Mad Scientist, Carbon/Graphene FCG+ between Transport and Dac.

Musically superior to every other I tried, incl. silver, copper, gold etc.

Thank you!  Also just learned about The Cable Company which has a lending library of broken in cables!!
https://www.thecableco.com/lending-library

Check out the newest USB from  Mad Scientist.
Perhaps you're not familiar with this company.
It's worth checking out.
 

A used Curious USB may worth a try. I used to own one and enjoyed it a lot  until I upgraded to the much more expensive Light Harmenic USB.