Resolution Specifications; Preset Display Modes; Electrical Specifications - Dell S2421H User Manual

Cable management
Dell Display Manager
(DDM) Compatibility
Security
* At panel native resolution only, under Custom Mode preset.

Resolution specifications

Model
Horizontal scan range
Vertical scan range
Maximum preset resolution
Video display capabilities
(HDMI playback)

Preset display modes

S2421H/S2721H
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
Yes
Easy Arrange and other key features
Security lock slot (cable lock sold separately)
S2421H/S2721H
30 kHz to 83 kHz
48 Hz to 75 Hz
1920 x 1080 at 60 Hz
480i, 480p, 576i, 576p, 720p, 1080i, 1080p
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
S2421H/S2721H
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 +/-
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