As I have changed cars from an 8P S3 to a B8 S4 this is now redundant. In pretty good condition and fully functional (if not you can have your money back). I never actually registered this originally so Ross-Tech have no record of the serial number, I'm not sure if this means you could get support from them or not, I would assume not but you never know.
In the interest of honesty this has lived in the boot of my car and due to this is showing slight signs of oxidation on the inside of the USB end, but as I stated it is fully functional.
£120 delivered with payment via PayPal gift or bank transfer.
PM if you're interested.
Ross-Tech Store: VCDS License with Micro-CAN Interface