I got an Amazon Basics USB cable to hook up my new Bifrost to my ancient, Frankenstein's monster of a PC, and I swear it sounds better than using a coax cable from my M-Audio Delta 192's S/P-DIF out. The bass seems to have a smidge more impact via USB. I tried a couple different coax cables (one Belkin Pure AV, the other some name brand), both sound the same. I was a little surprised by this, but it is a very subtle thing, if it's even real. One nice thing is the ability to leave both USB and coax connected.
Also, my Amazon cable
[COLOR=3366CC]glows blue[/COLOR] It's real purtty with the lights out. Orange tube glow + blue LED glow = chillaxin'