Dell 755 manual 244, AC power source, Physical

Power

DC external power supply:	NOTE: Power consumption from an AC power source can be zero
	when the computer is unplugged from that power source. However,
	the computer draws a minute amount of power from the internal coin
	cell battery even when the computer is not drawing power from the
	AC power source.
Wattage	220 W
Heat dissipation	751 BTU/hr
	NOTE: Heat dissipation is calculated based upon the power supply
	rating.
Voltage	auto-sensing power supplies — 90 to 135 V at 50/60 Hz; 180 to
	265 V at 50/60 Hz
Backup battery	3-V CR2032 lithium coin cell
Physical
Without cable cover:
Height	26.4 cm (10.375 inches)
Width	8.9 cm (3.5 inches)
Depth	25.3 cm (9.95 inches)
Weight	4.5 kg (10 lb)
With standard cable cover:
Height	26.4 cm (10.375 inches)
Width	8.9 cm (3.5 inches)
Depth	33 cm (13 inches)
Weight	4.9 kg (10.8 lb)
With extended cable cover:	12.34 kg (27.2 lb)
Height	26.4 cm (10.375 inches)
Width	8.9 cm (3.5 inches)
Depth	36.1 cm (14.2 inches)

244

Ultra Small Form Factor Computer Specifications