Dell Inspiron XPS M1730 Laptop Notebook System 230Watt AC Power Adapter PA-19, Compatible Dell Part Numbers: DT878, PN402, CN072, DA230PS0-00, HA230PS0-00, 330-0722 AC Adapter 230 Watt, Input: 100-240V 4A 50-60Hz Output: 19.5V - 11.8A, Connection: Barrel with Center Pin (See Photographs) Compatible with Dell XPS M1730 System Dell Model Number: DA230PS0-00, HA230PS0-00, 330-0722 Dell Part Number: DT878, PN402, CN072