Dell Vostro 3550 (Early 2011) - Manual (Page 111)

AC Adapter
Depth 70.00 mm (2.75 inches)
130 W:
Height 25.40 mm (1.00 inch)
Width 154.70 mm (6.09 inches)
Depth 76.20 mm (3.00 inches)
Temperature range:
Operating 0 °C to 35 °C (32 °F to 95 °F)
Non Operating –40 °C to 65 °C (–40 °F to 149 °F)
Physical
Vostro 3350:
Height 27.30 mm to 29.80 mm (1.07
inches to 1.17 inches)
Width 329.20 mm (12.96 inches)
Depth 228.50 mm (9.00 inches)
Weight (Minimum) 2.04 kg (4.50 lb)
Vostro 3450:
Height 30.60 mm to 33.20 mm (1.20
inches to 1.31 inches)
Width 343.00 mm (13.50 inches)
Depth 245.80 mm (9.68 inches)
Weight (Minimum) 2.28 kg (5.02 lb)
Vostro 3550/3555:
Height 30.40 mm to 34.80 mm (1.20
inches to 1.37 inches)
Width 375.40 mm (14.78 inches)
Depth 260.20 mm (10.24 inches)
Weight (Minimum) 2.47 kg (5.45 lb)
Vostro 3750:
111