They are actually not completely different. You need electricity(analog) to carry the data. Data Analag....and electricity. No matter how you turn it it will effect the quality all the way out to the listener. The Data and sound may not interfere with each other but electricity doesn´t wait for an invitation.Probably best to make sure your PC or laptop is setup to deliver the quality of audio you need than any overspend on a USB cable. They are designed to work to a specific standard in the digital realm. I wouldn't confuse analogue talk with data transfer requirements. Two completely different things. Like horse and marriage.
Apparently they can be measurably and audibly different, though I’ve never needed one to connect a DAC, so haven’t any personal experience.Oh, do educate us on how it does work then, peddler of hifi cables!