Users Guide

16  │  About your monitor

Electrical specifications

Model P2421

Video input signals • Analog RGB, 0.7 V ± 5%, positive polarity at 75 Ω input

impe

dance

• Digital DVI-D TMDS, 600 mV for each differential line,

pos

itive polarity at 50 Ω input impedance

• HDMI 1.4, 600 mV for each differential line, 100 Ω input

impe

dance per differential pair

• DisplayPort 1.2, 600 mV for each differential line, 100 Ω

input imp

edance per differential pair

AC input voltage/

equency/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

inc

luded)

• Analog: D-Sub, 15 pins (cable not

ncluded, except for Japan)

• Universal Serial Bus: USB, 9 pins

NOTE: De

ll 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.)