Specs on this product can be found here: Line 6 - GuitarPort - Audio Interface for Guitar
Comes with the GuitarPort itsself (perfect working order) and a 6 foot USB cable..all software can be downloaded straight from Line 6's website (Line 6 Monkey and GearBox)..from there all you need is an electric guitar, instrument cable and speakers/headphones and you're set to play straight through your computer.
I used this in my small apartment where I had no room for an amp, and all my electric playing was done straight through this nifty little thing. With enough effort, you can get surprisingly good tones straight from GearBox and the additional effects packs aren't that expensive either. I'm selling this because I have some new toys on the way that will replace it..it's also up on ebay.
Pics here, price below:
I'd like to get $40 shipped for it which is a very good price..if you have any questions, just ask!