I accidentally ended up with two of these. This is an unopened new in the box system. It comes with the game halo as well as the special edition controller and green xbox. it is serial # 505415X 414XX. I can't furnish the entire serial number for security reasons, but this should give you an idea as to when it was made and what version it is. I am asking $220 plus shipping which I would guess would be around $10 or so in the U.S.