Dell S2421NX User Manual

16 | About your monitor
Power management modes
If you have VESA’s DPM-compliant video card or software installed in your PC, the
monitor can automatically reduce its power consumption when not in use. This is
referred to as standby mode*. If the computer detects input from the keyboard,
mouse, or other input devices, the monitor automatically resumes functioning. The
following table shows the power consumption and signaling of this automatic power
saving feature.
S2421HN/S2421NX
VESA
Modes
Horizontal
Sync
Vertical
Sync
Video Power
Indicator
Power
Consumption
Normal
operation
Active Active Active White 21 W (maximum)**
16 W (typical)
Active-off
mode
Inactive Inactive Off White
(Glowing)
Less than 0.3 W
Switch off - - - Off Less than 0.3 W
Power Consumption P
on
11.74 W
Total Energy Consumption (TEC) 37.3 kWh
S2721HN/S2721NX
VESA
Modes
Horizontal
Sync
Vertical
Sync
Video Power
Indicator
Power
Consumption
Normal
operation
Active Active Active White 29 W (maximum)**
19 W (typical)
Active-off
mode
Inactive Inactive Off White
(Glowing)
Less than 0.3 W
Switch off - - - Off Less than 0.3 W
Power Consumption P
on
13.82 W
Total Energy Consumption (TEC) 43.68 kWh

Dell S2421NX Specifications

General

Screen Size	23.8 inches
Resolution	1920 x 1080 (Full HD)
Panel Type	IPS
Refresh Rate	75 Hz
Aspect Ratio	16:9
Brightness	250 cd/m²
Contrast Ratio	1000:1
Connectivity	1 x HDMI 1.4, 1 x VGA
Color Support	16.7 million colors
Response Time	4 ms (gray to gray)
Viewing Angle	178°
Features	Anti-glare
VESA Mount	100 x 100 mm