Dell Vostro 3550 Owner's Manual page 112

Physical
Height
Width
Depth
Weight (Minimum)
Environmental
Temperature:
Operating
Storage
Relative humidity (Maximum):
Operating
Storage
Airborne contaminant level
112
30.80 mm to 34.80 mm (1.21
inches to 1.37 inches)
418.40 mm (16.47 inches)
286.70 mm (11.29 inches)
3.00 kg (6.62 lb)
10 °C to 35 °C (50 °F to 95 °F)
-40 °C to 65 °C (-40 °F to 149 °F)
10 % to 90 % (noncondensing)
5 % to 95 % (noncondensing)
G1 or lower as defined by ISA-
S71.04–1985