Preset Display Modes; Electrical Specifications - Dell S2421HN User Manual

Preset display modes

S2421HN/S2421NX/S2721HN/S2721NX
Display Mode
VGA, 720 x 400
VGA, 640 x 480
VESA, 640 x 480
VESA, 800 x 600
VESA, 800 x 600
VESA, 1024 x 768
VESA, 1024 x 768
MAC, 1152 x 864
VESA, 1280 x 1024 64.0
VESA, 1280 x 1024 80.0
VESA, 1600 x 900
CVT, 1920 x 1080
CVT, 1920 x 1080

Electrical specifications

Model
Video input signals
Input voltage/ frequency/
current
Inrush current
Horizontal Vertical
Frequency Frequency
(kHz)
(Hz)
31.5 70.0
31.5 60.0
37.5 75.0
37.9 60.0
46.9 75.0
48.4 60.0
60.0 75.0
67.5 75.0
60.0
75.0
60.0 60.0
67.5 60.0
83.89 75.0
S2421HN/S2421NX/S2721HN/S2721NX
• Digital video signal for each differential line
Per differential line at 100 ohm impedance
• HDMI signal input support
100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.5 A
(maximum)
120 V: 30 A (maximum)
240 V: 60 A (maximum)
Pixel Clock Sync Polarity
(MHz) (Horizontal/
Vertical)
28.3 -/+
25.2 -/-
31.5 -/-
40.0 +/+
49.5 +/+
65.0 -/-
78.8 +/+
108.0 +/+
108.0 +/+
135.0 +/+
108.0 +/+
148.5 +/+
174.5 +/-
About your monitor | 13