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5. Technical Specifications
5.1 Resolution & Preset Modes
Maximum Resolution
1920x1080@60Hz (analog input)(271
E1S/271E1SD/272E1SA/275E1/275E1S)
1920x1080@75Hz (HDMI input)
(271E1S)
1920x1080@75Hz (HDMI input)
(271E1SD)
1920x1080@75Hz (HDMI/DP input)
(272E1SA)
2560x1440@75Hz (HDMI/DP input)
(275E1/275E1S)
3840x2160@60Hz (HDMI/DP input)
(278E1/278E1A)
Recommended Resolution
1920x1080@60Hz (analog input)
(271E1S/271E1SD/272E1SA/275E1/
275E1S)
1920x1080@60Hz(HDMI input)
(271E1S)
1920x1080@60Hz (HDMI/DVI input)
(271E1SD)
1920x1080@60Hz (HDMI/DP input)
(272E1SA)
2560x1440@60Hz (HDMI/DP input)
(275E1/275E1S)
3840x2160@60Hz (HDMI/DP input)
(278E1/278E1A)
H. freq
(kHz)
Resolution
V. freq
(Hz)
31.47
720x400
70.09
31.47
640x480
59.94
35.00
640x480
66.67
37.86
640x480
72.81
37.50
640x480
75.00
37.88
800x600
60.32
46.88
800x600
75.00
48.36
1024x768
60.00
60.02
1024x768
75.03
63.89
1280x1024
60.02
H. freq
(kHz)
Resolution
V. freq
(Hz)
79.98
1280x1024
75.03
55.94
1440x900
59.89
70.64
1440x900
74.98
65.29
1680x1050
59.95
67.50
1920x1080
60.00
83.89
1920x1080
74.97
88.79
2560x1440
(275E1/275E1S)
59.95
111.03
2560x1440
(275E1/275E1S)
74.97
133.31
3840x2160
(278E1/278E1A)
60.00
Note
Please notice that your display works
best at native resolution of 1920x108
0@60Hz(271E1S/271E1SD/272E1SA),
2560x1440@60Hz(275E1/275E1S),
3840x2160@60Hz(278E1/278E1A). For
best display quality, please follow this
resolution recommendation.