Dell U4021QW User Manual

10 | About your monitor
Back view
7
1
2
3
4
5
6
Label Description Use
1 VESA mounting holes (100 mm
x 100 mm-behind attached
VESA cover)
Wall mount monitor using VESA-
compatible wall mount kit (100 mm x 100
mm).
2 Regulatory label Lists the regulatory approvals.
3 Stand release button Releases stand from the monitor.
4 Power On/Off button To turn the monitor on or off.
5 Joystick Use it to control the OSD menu.
For more information, see Operating the
Monitor.
6 Mac address, Barcode, serial
number, and Service Tag label
Refer to this label if you need to contact Dell
for technical support. The Service Tag is a
unique alphanumeric identifier that enables
Dell service technicians to identify the
hardware components in your computer and
access warranty information.
7 Cable-management slot Use to organize cables by inserting them
through the slot.

Dell U4021QW Specifications

General

Screen Size	39.7 inches
Panel Type	IPS
Aspect Ratio	21:9
Refresh Rate	60 Hz
Brightness	300 cd/m²
Contrast Ratio	1000:1
Color Support	1.07 billion colors
Color Gamut	100% sRGB, 98% DCI-P3
Resolution	5120 x 2160
Response Time	5 ms (GtG)
Ports	Thunderbolt 3, DisplayPort 1.4, HDMI 2.0, USB 3.2 Gen 1, RJ45, Audio out
Built-in Speakers	Yes (2 x 9W)
Viewing Angle	178° (H) / 178° (V)
VESA Mount	Yes (100 x 100 mm)