POWER
DC Power Supply - Wattage 305W 280W 275W 220W (External power brick)
Power Efficiency 76% 76% 76% 80%
Heat Dissipation * 1041 BTU/hr 956 BTU/hr 939 BTU/hr 751 BTU/hr
* NOTE: Heat dissipation is calculated based upon the power supply rating. Does not include peripherals.
Voltage - Manual selection Manual selection power supplies: 90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz External - Auto sensing
Backup battery 3-V CR2032 coin cell, Lithium ion
POWER MANAGEMENT
ACPI Wake-Up Event
System Wakes From
Power Button Suspend or soft-off
RTC Alarm Suspend or soft-off
Wake On LAN Suspend or soft-off
PME Suspend or soft-off
Serial Port Ring Suspend or soft-off
USB Suspend only
Keyboard Suspend only
Mouse Suspend only
CHASSIS DIMENSIONS
Height 41.4 cm (16.3 inches) 11.4 cm (4.5 inches) 9.26 cm (3.65 inches) 26.4 cm (10.37 inches)
Width 18.5 cm (7.3 inches) 39.9 cm (15.7 inches) 31.37 cm (12.35 inches) 8.9 cm (3.5 inches)
Depth 43.8 cm (17.3 inches) 35.3 cm (13.9 inches) 34.03 cm (13.4 inches) 25.3 cm (9.95 inches)
Weight 12.34 kg (27.2 lb) 10.4 kg (23 lb) 7.4 kg (16.4 lb) 4.5 kg (10 lb)
Volume 33 Liters 15.7 Liters 9.97 Liters 6 Liters
PHYSICAL ATTRIBUTES
Temperature
Operating 10° to 35°C (50° to 95°F) 10° to 30°C (50° to 86°F)
Storage –40° to 65°C (–40° to 149°F)
Relative humidity 20% to 80% (non-condensing)
Maximum vibration
Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min
Storage 0.5 G at 3 to 200 Hz at 1 octave/min
Maximum shock
Operating Bottom half-sine pulse with a change in velocity of 50.8 cm/sec (20 inches/sec)
Storage 27-G faired square wave with a velocity change of 508 cm/sec (200 inches/sec)
Altitude
Operating –15.2 to 3048 m (–50 to 10,000 ft)
Storage –15.2 to 10,668 m (–50 to 35,000 ft)
Dell™ OptiPlex™ 745
Tech Specs
MINITOWER
DESKTOP
SMALL FORM
FACTOR
ULTRA SMALL
FORM FACTOR
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