DELL UltraSharp U4021QW LED display 100.8 cm (39.7″) 5120 x 2160 pixels 4K DCI LCD Silver
- 100.8cm (39.7″) WUHD 5120 x 2160 LED IPS
- 8ms, 21:9, 300cd/m², 1000:1
- USB, HDMI, DisplayPort
Redefine productivity on this revolutionary 40” curved WUHD 5K2K monitor that delivers exceptional color and clarity.
| Display |
| Colour gamut |
98% |
| Colour gamut standard |
DCI-P3 |
| High Dynamic Range (HDR) supported |
No |
| Viewable size diagonal |
100.9 cm |
| Viewable size, vertical |
39.2 cm |
| Viewable size, horizontal |
92.9 cm |
| Vertical scan range |
24 – 86 Hz |
| Horizontal scan range |
27 – 133.286 kHz |
| Pixel density |
140 ppi |
| Pixel pitch |
0.1815 x 0.1815 mm |
| Response time (fast) |
5 ms |
| Display number of colours |
1.073 billion colours |
| Viewing angle, vertical |
178° |
| Viewing angle, horizontal |
178° |
| Maximum refresh rate |
60 Hz |
| Contrast ratio (typical) |
1000:1 |
| Supported video modes |
480p, 720p, 1080i, 1080p |
| Supported graphics resolutions |
640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 800 (WXGA), 1600 x 1200 (UXGA), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 2048 x 1152, 2560 x 1080, 3840 x 2160, 4096 x 2160, 5120 x 2160 |
| Screen curvature rating |
2500R |
| Screen shape |
Curved |
| Anti-glare screen |
Yes |
| Response time |
8 ms |
| Display brightness (typical) |
300 cd/m² |
| Backlight type |
LED |
| Panel type |
IPS |
| HD type |
4K DCI |
| Touchscreen |
No |
| Display technology |
LCD |
| Native aspect ratio |
21:9 |
| Display resolution |
5120 x 2160 pixels |
| Display diagonal |
100.8 cm (39.7″) |
| Performance |
| AMD FreeSync |
No |
| NVIDIA G-SYNC |
No |
| Multimedia |
| Built-in camera |
No |
| RMS rated power |
18 W |
| Number of speakers |
2 |
| Built-in speaker(s) |
Yes |
| Design |
| Feet colour |
Silver |
| Front bezel colour |
Black |
| Product colour |
Silver |
| Market positioning |
Graphics design |
| Ports & interfaces |
| Headphone connectivity |
3.5 mm |
| Headphone outputs |
1 |
| Headphone out |
Yes |
| Audio input |
No |
| Thunderbolt 3 ports quantity |
1 |
| DisplayPort version |
1.4 |
| DisplayPorts quantity |
1 |
| HDMI version |
2.0 |
| HDMI ports quantity |
2 |
| HDMI |
Yes |
| DVI port |
No |
| USB Power Delivery up to |
90 W |
| USB Type-C downstream ports quantity |
1 |
| USB Type-A downstream ports quantity |
4 |
| Number of USB Type-B upstream ports quantity |
1 |
| Number of upstream ports |
1 |
| USB upstream port type |
USB Type-B |
| Built-in USB hub |
Yes |
| Ergonomics |
| Tilt angle range |
-5 – 21° |
| Tilt adjustment |
Yes |
| Swivel angle range |
-30 – 30° |
| Swivelling |
Yes |
| Pivot |
No |
| Adjustable height (max) |
12 cm |
| Height adjustment |
Yes |
| Cable lock slot |
Yes |
| Panel mounting interface |
100 x 100 mm |
| VESA mounting |
Yes |
| Power |
| European Product Registry for Energy Labelling (EPREL) code |
390236 |
| Energy efficiency scale |
A to G |
| Power supply type |
Internal |
| Input current |
2.8 A |
| AC input frequency |
50 – 60 Hz |
| AC input voltage |
100 – 240 V |
| Power consumption (PowerSave) |
44.81 W |
| Power consumption (off) |
0.3 W |
| Power consumption (max) |
240 W |
| Power consumption (standby) |
0.3 W |
| Power consumption (typical) |
41.3 W |
| Energy consumption (SDR) per 1000 hours |
41 kWh |
| Energy efficiency class (HDR) |
Not available |
| Energy efficiency class (SDR) |
G |
| Operational conditions |
| Storage relative humidity (H-H) |
5 – 90% |
| Operating relative humidity (H-H) |
10 – 80% |
| Storage temperature (T-T) |
-20 – 60 °C |
| Operating temperature (T-T) |
0 – 40 °C |
| Weight & dimensions |
| Bezel width (bottom) |
1.58 cm |
| Bezel width (top) |
1.13 cm |
| Bezel width (side) |
1.13 cm |
| Weight (without stand) |
9.5 kg |
| Height (without stand) |
419.1 mm |
| Depth (without stand) |
59.6 mm |
| Width (without stand) |
946.6 mm |
| Weight (with stand) |
13.8 kg |
| Height (with stand) |
577.3 mm |
| Depth (with stand) |
248 mm |
| Width (with stand) |
946.6 mm |
| Packaging data |
| Package weight |
21.6 kg |
| Carbon footprint |
| Total carbon emissions, standard deviation (kg of CO2e) |
149 |
| Carbon emissions, energy usage (kg of CO2e) |
377 |
| Total carbon footprint (kg of CO2e) |
926 |
| Carbon emissions, manufacturing (kg of CO2e) |
430 |
| Carbon emissions, logistics (kg of CO2e) |
112 |
| Carbon emissions, end-of-life (kg of CO2e) |
6 |
| Total carbon emissions, w/o use phase (kg of CO2e) |
549 |
| General |
| Product family |
UltraSharp |
| Other features |
| RJ-45 ports quantity |
1 |
| Logistics data |
| Harmonized System (HS) code |
85285210 |
- EU Energy Label
- Dell U4021QW Quick Setup Guide
- Dell U4021QW Dell Display Manager User’s Guide
- Dell U4021QW Statement of Volatility
- Dell U4021QW Outline Dimension Guide
- Dell U4021QW User’s Guide
- Carbon Footprint
- EU Product Fiche
