Copied from one of my posts:
"I haven't really read up much on anything hi-fi recently, but coming from a computer science backround (my major), I can say that a "better" usb cable won't do anything differently than a cheap usb cable. The data transmitted through the usb cable is digital and thus comprised of 1's and 0's. So it either works or it doesn't. There is no signal that can be degraded. Think about it. Can 1's get more or less one'y? This is the same reason why expensive hdmi cables are no better than $3 hdmi cables. If you want the hi-fi look, sleeve your cable and call it a day.
EDIT: I thought I'd clarify by one'y and why cables don't matter for digital. To a transistor, ones and zeros are represented by a voltage range. So for example a 0 would be represented by a signal that is 0v - .35v and a 1 would be represented by a signal that is .65v - 1v. These ranges are dependent on the physical characteristics of the transistors used, but you get the idea. As long as the voltages of your ones and zeros fall in those two ranges, you're good. Now unless you are getting massive interference, these fancy cables are nothing more than eye candy as a signal that is .65v is the registered the same as a signal that is 1v."
As for my credibility, while I may not have a degree (yet), I'm majoring in Computer Science at an accredited university and have just learned this in the Digital Logic class I took just last semester. Take it how you please.
Edited by NAWilson9 - 7/29/13 at 4:33pm