So I have a Turtle BeacH X12 headset for my Xbox. I want to be able to use it on my computer as well.

Should I buy this simple soundcard?

http://steelseries.com/us/products/audio/steelseries-siberia-usb-soundcard

Or should I buy this Astro Mixamp like a bawse?

http://www.astrogaming.com/mixamp/mixamp-usb

Thanks in advance.