Thanks for the reply, though I don't know if you understood what I meant...
I'm trying to use my USB port as an audio input, so I can plugin my headphones using my USB port.
It looks like that FiiO device you're talking about has a female USB port, not a male. I don't think you understood what I was trying to do.
Recently, my laptop audio jack broke. I'm looking for a replacement, such as a male USB to female headphone jack. Now, I've found one on eBay here.
The problem is that I am worried using this product will reduce audio quality. Is there some sort of device that would serve the same purposes (usb to audio) while not reducing audio quality, perhaps even increasing it?
Thanks so much!