I wasnt really paying attention when I ordered this headset as i thought it was a USB Headset. Luckily though I have headphone and mic ports in the front of the computer and its easy to set up using Realtek.
The Headset is pretty impressive really, the mic is nice and flexible and not one of those soft ones that sometimes you dribble on when playing! The headphones are BIG but soft and comfortable, ths sound is great, mic is responsive and there is a nice little control on the lead for mic mute, volume and tone, although the tone one is a bit pointless!
To sum up, these ARENT USB but are a fantastic buy for the price, and I would expect a headset of this quality to be much more expensive.