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About your monitor
Electrical specifications
Model
P2421
Video input signals
• Analog RGB, 0.7 V ± 5%, positive polarity at 75 Ω input
impedance
• Digital DVI-D TMDS, 600 mV for each differential line,
positive polarity at 50 Ω input impedance
• HDMI 1.4, 600 mV for each differential line, 100 Ω input
impedance per differential pair
• DisplayPort 1.2, 600 mV for each differential line, 100 Ω
input impedance per differential pair
AC input voltage/
frequency/current
100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1.2 A
(typical)
Inrush current
• 120 V: 30 A (Max.) at 0°C (cold start)
• 240 V: 60 A (Max.) at 0°C (cold start)
Physical characteristics
Model
P2421
Signal cable type
• Digital: DisplayPort, 20 pins
• Digital: HDMI, 19 pins (cable not included)
• Digital: DVI-D, 24 pins (cable not
included)
• Analog: D-Sub, 15 pins (cable not
included, except for Japan)
• Universal Serial Bus: USB, 9 pins
NOTE:
Dell monitors are designed to work optimally with the video cables that
are shipped with your monitor. As Dell does not have control over the different
cable suppliers in the market, the type of material, connector and process used to
manufacture these cables, Dell does not guarantee video performance on cables
that are not shipped with your Dell monitor.
Dimensions (with stand)
Height (extended)
500.8 mm (19.72 in.)
