Go to Amazon.com : http://www.amazon.com/gp/product/B00CGA5JQM?tag=theatrecat-20
Dell 330W Replacement AC Adapter for Dell Alienware x51 Desktop Alienware M18x M18x R1 R2 R3
Input 100-240V 50-60Hz15A
Output330w 195V 169A
Come with a US 3FT POWER CORD
1 Year warranty