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| Item number: CIEN2-88727511 Manufacturer no.: DELL-U4021QW EAN/GTIN: 5397184409633 |
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![](/p.gif) | Redefine productivity on this revolutionary 40” curved WUHD 5K2K monitor that delivers exceptional color and clarity. More information: Carbon footprint | Total carbon footprint (kg of CO2e) | 926 kg of CO2e | ![](/p.gif) | Total carbon emissions, standard deviation (kg of CO2e) | 149 kg of CO2e | ![](/p.gif) | Carbon emissions, manufacturing (kg of CO2e) | 430 kg of CO2e | ![](/p.gif) | Carbon emissions, logistics (kg of CO2e) | 112 kg of CO2e | ![](/p.gif) | Carbon emissions, energy usage (kg of CO2e) | 377 kg of CO2e | ![](/p.gif) | Carbon emissions, end-of-life (kg of CO2e) | 6 kg of CO2e | ![](/p.gif) | Total carbon emissions, w/o use phase (kg of CO2e) | 549 kg of CO2e | Sustainability | European Product Registry for Energy Labelling (EPREL) code | 390236 | Packaging data | Package weight | 21600 g | Operational conditions | Operating temperature (T-T) | 0 - 40 °C | ![](/p.gif) | Storage temperature (T-T) | -20 - 60 °C | ![](/p.gif) | Operating relative humidity (H-H) | 10 - 80 % | ![](/p.gif) | Storage relative humidity (H-H) | 5 - 90 % | Ergonomics | VESA mounting | Yes | ![](/p.gif) | Cable lock slot | Yes | ![](/p.gif) | Height adjustment | Yes | ![](/p.gif) | Panel mounting interface | 100 x 100 mm | ![](/p.gif) | Height adjustment | 120 mm | ![](/p.gif) | Swivelling | Yes | ![](/p.gif) | Swivel angle range | -30 - 30 ° | ![](/p.gif) | Tilt adjustment | Yes | ![](/p.gif) | Tilt angle range | -5 - 21 ° | Logistics data | Harmonized System (HS) code | 85285210 | Ports & interfaces | Built-in USB hub | Yes | ![](/p.gif) | HDMI | Yes | ![](/p.gif) | Headphone out | Yes | ![](/p.gif) | USB upstream port type | USB Type-B | ![](/p.gif) | Number of upstream ports | 1 | ![](/p.gif) | Number of USB Type-B upstream ports quantity | 1 | ![](/p.gif) | USB Type-A downstream ports quantity | 4 | ![](/p.gif) | USB Type-C downstream ports quantity | 1 | ![](/p.gif) | USB Power Delivery up to | 90 W | ![](/p.gif) | HDMI ports quantity | 2 | ![](/p.gif) | HDMI version | 2.0 | ![](/p.gif) | DisplayPorts quantity | 1 | ![](/p.gif) | DisplayPort version | 1.4 | ![](/p.gif) | Thunderbolt 3 ports quantity | 1 | ![](/p.gif) | Headphone outputs | 1 | ![](/p.gif) | Headphone connectivity | 3.5 mm | Weight & dimensions | Width (with stand) | 946.6 mm | ![](/p.gif) | Depth (with stand) | 248 mm | ![](/p.gif) | Height (with stand) | 577.3 mm | ![](/p.gif) | Weight (with stand) | 13800 g | ![](/p.gif) | Width (without stand) | 946.6 mm | ![](/p.gif) | Depth (without stand) | 59.6 mm | ![](/p.gif) | Height (without stand) | 419.1 mm | ![](/p.gif) | Weight (without stand) | 9500 g | ![](/p.gif) | Bezel width (side) | 11.3 mm | ![](/p.gif) | Bezel width (top) | 11.3 mm | ![](/p.gif) | Bezel width (bottom) | 15.8 mm | Multimedia | Built-in speaker(s) | Yes | ![](/p.gif) | Number of speakers | 2 | ![](/p.gif) | RMS rated power | 18 W | Power | Energy efficiency class (SDR) | G | ![](/p.gif) | Energy efficiency class (HDR) | Not available | ![](/p.gif) | Energy consumption (SDR) per 1000 hours | 41 kWh | ![](/p.gif) | Power consumption (typical) | 41.3 W | ![](/p.gif) | Power consumption (standby) | 0.3 W | ![](/p.gif) | Power consumption (max) | 240 W | ![](/p.gif) | Power consumption (off) | 0.3 W | ![](/p.gif) | Power consumption (PowerSave) | 44.81 W | ![](/p.gif) | AC input voltage | 100 - 240 V | ![](/p.gif) | AC input frequency | 50 - 60 Hz | ![](/p.gif) | Input current | 2.8 A | ![](/p.gif) | Power supply type | Internal | ![](/p.gif) | Energy efficiency scale | A to G | Design | Market positioning | Graphics design | ![](/p.gif) | Product colour | Silver | ![](/p.gif) | Front bezel colour | Black | ![](/p.gif) | Feet colour | Silver | Other features | RJ-45 ports quantity | 1 | Display | Display diagonal | 39.7 " | ![](/p.gif) | Display resolution | 5120 x 2160 pixels | ![](/p.gif) | Native aspect ratio | 21:9 | ![](/p.gif) | Display technology | LCD | ![](/p.gif) | HD type | 4K DCI | ![](/p.gif) | Panel type | IPS | ![](/p.gif) | Screen shape | Curved | ![](/p.gif) | Contrast ratio (typical) | 1000:1 | ![](/p.gif) | Maximum refresh rate | 60 Hz | ![](/p.gif) | Display number of colours | 1.073 billion colours | ![](/p.gif) | Backlight type | LED | ![](/p.gif) | Display brightness (typical) | 300 cd/m² | ![](/p.gif) | Response time | 8 ms | ![](/p.gif) | Anti-glare screen | Yes | ![](/p.gif) | Screen curvature rating | 2500R | ![](/p.gif) | 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 | ![](/p.gif) | Supported video modes | 480p, 720p, 1080i, 1080p | ![](/p.gif) | Viewing angle, horizontal | 178 ° | ![](/p.gif) | Viewing angle, vertical | 178 ° | ![](/p.gif) | Response time (fast) | 5 ms | ![](/p.gif) | Pixel pitch | 0.1815 x 0.1815 mm | ![](/p.gif) | Pixel density | 140 ppi | ![](/p.gif) | Horizontal scan range | 27 - 133.286 kHz | ![](/p.gif) | Vertical scan range | 24 - 86 Hz | ![](/p.gif) | Viewable size, horizontal | 929.28 mm | ![](/p.gif) | Viewable size, vertical | 392.04 mm | ![](/p.gif) | Viewable size diagonal | 1008.59 mm | ![](/p.gif) | Colour gamut standard | DCI-P3 | ![](/p.gif) | Colour gamut | 98 % |
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