Dell U4021QW User Manual

18 | About your monitor
Video - Bandwidth
Host Video Cable Resolution
USB-C
(Alt Mode DP1.2)
USB-C Gen1 Cable
5120 x 2160 @ 30 HzThunderbolt
TM
3 Active Cable (40G)
Thunderbolt
TM
4 Active Cable (40G)
USB-C
(Alt Mode DP1.4)
USB-C Gen2 Cable 5120 x 2160 @ 60 Hz
Thunderbolt
TM
3 Active Cable (40G) 5120 x 2160 @ 60 Hz
Thunderbolt
TM
4 Active Cable (40G) 5120 x 2160 @ 60 Hz
TBT3
(Alt Mode DP1.2)
Thunderbolt
TM
3 Active Cable (40G)
5120 x 2160 @ 30 Hz
Thunderbolt
TM
4 Active Cable (40G)
TBT3
(Alt Mode DP1.4)
Thunderbolt
TM
3 Active Cable (40G)
5120 x 2160 @ 60 Hz
Thunderbolt
TM
4 Active Cable (40G)
HDMI 2.0 HDMI 2.0 cable 5120 x 2160 @ 30 Hz
HDMI 1.4 HDMI 2.0 cable 3840 x 2160 @ 30 Hz
USB - Bandwidth
Host USB Upstream Cable
USB Device connected to
USB-A or C Downstream
USB-A
(5 Gbps)
A-C Cable
Supported, USB 2.0/3.2
Gen1
A-B Cable
USB-C (5 Gbps
Data Only)
USB-C Gen1/2 Cable
Supported, USB 2.0/3.2
Gen1
Thunderbolt
TM
4 Active Cable (40G)
Thunderbolt
TM
3 Active Cable (40G) Supported, USB 2.0 only
USB-C (Alt Mode
DP1.2)
USB-C Gen1/2 Cable
Supported, USB 2.0 onlyThunderbolt
TM
3 Active Cable (40G)
Thunderbolt
TM
4 Active Cable (40G)
USB-C (Alt Mode
DP1.4)
USB-C Gen1/2 Cable
Supported, USB 2.0 onlyThunderbolt
TM
3 Active Cable (40G)
Thunderbolt
TM
4 Active Cable (40G)
TBT3
Thunderbolt
TM
3 Active Cable (40G)
Supported USB3.2 Gen2
Thunderbolt
TM
4 Active Cable (40G)

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)