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Resolution specifications
Model
E2221HN
E2421HN
Horizontal scan range
30 kHz to 83 kHz (automatic) 30 kHz to 83 kHz (automatic)
Vertical scan range
56 Hz to 76 Hz (automatic) 56 Hz to 76 Hz (automatic)
Maximum preset resolution 1920 x 1080 @ 60 Hz
1920 x 1080 @ 60 Hz
Preset display modes
Display mode Horizontal
frequency
(kHz)
Vertical
frequency
(Hz)
Pixel clock
(MHz)
Sync polarity
(Horizontal/Vertical)
VESA, 720 x 400
31.5
70.1
28.3
-/+
VESA, 640 x 480
31.5
60.0
25.2
-/-
VESA, 640 x 480
37.5
75.0
31.5
-/-
VESA, 800 x 600
37.9
60.3
40.0
+/+
VESA, 800 x 600
46.9
75.0
49.5
+/+
VESA, 1024 x 768
48.4
60.0
65.0
-/-
VESA, 1024 x 768
60.0
75.0
78.8
+/+
VESA, 1152 x 864
67.5
75.0
108.0
+/+
VESA, 1280 x1024
64.0
60.0
108.0
+/+
VESA, 1280 x1024
80.0
75.0
135.0
+/+
VESA, 1600 x 900
60.0
60.0
108.0
+/+
VESA, 1920 x1080
67.5
60.0
148.5
+/+