Dell Alienware M14x (Early 2011) - Manual (Page 112)

CHAPTER 7: SPECIFICATIONS
110
AC Adapter
Type
150 W
Input voltage 100 - 240 VAC
Input current (maximum) 2.50 A
Input frequency 50‑60 Hz
Output current 7.70 A (continuous)
Output power 150 W
Rated output voltage 19.50 V
Temperature range
Operating 0° to 35°C (32° to 95°F)
Storage –40° to 70°C (–40° to 158°F)
Connector types
DC connector 3-pin, 7.4 mm plug
AC connector 3-pin – C13