Original Dell 180w 19.5V 9.23a Slim Design replacement AC adapter for Dell Notebook Model: Dell Alienware M14x, Dell Alienware M15x, Dell Alienware M17x, Dell Alienware M17x R3, Dell Precision M4600, Dell Precision M6300, Dell Precision M6400, Dell XPS 17 - L702X, Dell XPS M1730, Dell XPS M1730N. Compatible Part Numbers: 450-16902, A-0180ADU00-201, ADP-180MB B, FA180MP111, 74X5J, 78X5J, JVF3V.