Dell OptiPlex 7420 - Thermal Dissipation; CMOS Battery; Accessories

Table 44. Power ratings specifications(continued)
Description Values
FEMP Standby Power Compliant Yes
Thermal dissipation
The following table lists the thermal dissipation of your OptiPlex All-in-One 7420.
Table 45. Thermal dissipation
Power supply unit Heat dissipation Voltage
160 W (80 Plus Bronze) 546 BTU/hr 100 VAC–240 VAC, 50 Hz–60 Hz, 3.6
A/1.8 A
CMOS battery
The following table lists the CMOS battery specifications of your OptiPlex All-in-One 7420.
Table 46. CMOS battery
Brand Type Voltage Composition Battery life
● KTS
● MAXELL
● TIANQIU
CR2032 3 V Lithium metal Continuous discharge under 15 kΩ load to 2 V
End-Voltage. 20℃±2℃ 940 hours, or longer.
910 hours or longer after 12 months.
Accessories
The following table lists the recommended accessories on your OptiPlex All-in-One 7420.
Table 47. Accessories
Accessories
Audio
Dell Wired Headset - WH3024
Keyboard
Dell Premier Multi-Device Wireless Keyboard and Mouse - KM7321W
Mouse
Dell Premier Multi-Device Wireless Keyboard and Mouse - KM7321W
Additional monitor
Dell 24 Monitor - P2423D
Stands
● OptiPlex Entry 24 All-in-One Height Adjustable Stand - 3G8H3
● OptiPlex Entry 24 All-in-One Height Adjustable Stand - D4F0J
46 Engineering specifications