Pros: it worked right out of the box and installed its self on my computer

Cons: after about 8 months when you bump it the sound only goes to one side of my headphones and you just have to twist the cable to fix it

Overall Review: idk about 7.1 sound

Pros: this works like a charm. my laptop's audio jack did not work so i got this as a solution it works great. i read the instructions and it says to install the driver disk if you have vista and i have vista and didn't install any drivers it got them when i first plugged it in. small about a inch and a half it sticks out of the computer .

Cons: nothing at the moment. just don't hit it off anything if you walk around with a laptop.

Overall Review: my head phones have a lot of bass in them and i have my computers sound set to 10% out of 100% and its still load good thing my head phones have a sound settings on them. all the buttons work on the usb.