Dell 1550, 1540 manual Physical, Environmental

AC Adapter

90 W	4.62 A
Rated output voltage	19.50 VDC (+/ 1.0 VDC)
Dimensions:
Height	28.20 mm (1.11 inches)
Width	57.90 mm (2.28 inches)
Depth	137.16 mm (5.40 inches)
Temperature range:
Operating	0 °C to 40 °C (32 °F to 104 °F)
Non Operating	–40 °Cto 65 °C (–40 °F to 149 °F)
Physical
Vostro 1440 / Vostro 1450:
	31.50 mm to 34.70 mm (1.24 inches to
Height (with a WLED panel)	1.36 inches)
Width	342.00 mm (13.46 inches)
Depth	244 mm (9.60 inches)
Weight (Minimum)	2.2 kg (4.85 lb)
Vostro 1540 / Vostro 1550:
	31.50 mm to 34.50 mm (1.24 inches to
Height (with a WLED panel)	1.35 inches)
Width	376.00 mm (14.80 inches)
Depth	260 mm (10.23 inches)
Weight (Minimum)	2.37 kg (5.22 lb)
Environmental
Temperature:
Operating	10 °C to 35 °C (50 °F to 95 °F)
Storage	-40 °C to 65 °C (-40 °F to 149 °F)
Relative humidity (maximum):
Operating	10 % to 90 % (noncondensing)

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