Dell UltraSharp 40 Curved WUHD Monitor - U4021QW

Tech Specs

Quick Specs

Device Type
LED-backlit LCD monitor - 40"
Diagonal Size
40"
Features
USB 3.2 Gen 2/USB-C hub, USB PD 90 Watt
Panel Type
IPS
Aspect Ratio
21:9
Native Resolution
WUHD 5120 x 2160 (DisplayPort: 60 Hz, HDMI: 30 Hz)
Pixel Pitch
0.1815 mm
Brightness
300 cd/m²
Contrast Ratio
1000:1 / 1000:1 (dynamic)
Response Time
8 ms (gray-to-gray normal); 5 ms (gray-to-gray fast)
Color Support
1.07 billion colors
Input Connectors
2xHDMI, DisplayPort, Thunderbolt 3
Display Position Adjustments
Height, swivel, tilt
Screen Coating
Anti-glare 3H hardness
Dimensions (WxDxH) - with stand (lowest position)
37.3 in x 9.8 in x 18 in
Weight
30.42 lbs
Compliant Standards
RoHS, BFR-free, PVC-free

General

Display Type
LED-backlit LCD monitor / TFT active matrix
Diagonal Size
40"
Viewable Size
39.7"
Curved Screen
Yes (2500R)
Built-in Devices
USB 3.2 Gen 2/USB-C hub
USB Power Delivery
90 Watt
Panel Type
IPS
Aspect Ratio
21:9
Native Resolution
WUHD 5120 x 2160 (DisplayPort: 60 Hz, HDMI: 30 Hz)
Pixel Pitch
0.1815 mm
Pixel Per Inch
140
Brightness
300 cd/m²
Contrast Ratio
1000:1 / 1000:1 (dynamic)
Color Support
1.07 billion colors
Color Gamut
100% sRGB, 98% DCI-P3
Response Time
8 ms (gray-to-gray normal); 5 ms (gray-to-gray fast)
Vertical Refresh Rate
24 - 86 Hz
Horizontal Refresh Rate
27 - 133.286 kHz
Horizontal Viewing Angle
178
Vertical Viewing Angle
178
Screen Coating
Anti-glare 3H hardness
Backlight Technology
LED backlight
Features
Mercury free, arsenic-free glass, 3-sided bezeless
Dimensions (WxDxH)
37.3 in x 9.8 in x 18 in - with stand (lowest position)
Weight
30.42 lbs

Audio

Type
Speakers - stereo
Output Power / Channel
9 Watt

Connectivity

Interfaces
  • 2 x HDMI (HDCP 2.2)
  • DisplayPort 1.4 (HDCP 2.2)
  • Thunderbolt 3/USB-C upstream/DisplayPort 1.4 Alt Mode (power up to 90W)
  • USB-C 3.2 Gen 2 downstream (power up to 15W)
  • USB upstream (Type B)
  • 4 x USB 3.2 Gen 2 downstream
  • USB 3.2 Gen 2 downstream with Battery Charging 1.2
  • Audio line-out
  • LAN (RJ-45)

Mechanical

Display Position Adjustments
Height, swivel, tilt
Tilt Angle
-5/+21
Swivel Angle
60
Height Adjustment
4.7 in

Miscellaneous

Features
Security lock slot (cable lock sold separately)
Cables Included
  • 1 x DisplayPort cable - DisplayPort to DisplayPort - 6 ft
  • 1 x USB 3.2 Gen 1 upstream cable - USB Type A to B - 6 ft
  • 1 x HDMI cable - 6 ft
  • 1 x Thunderbolt 4 active cable - USB-C
Compliant Standards
RoHS, BFR-free, PVC-free

Power

Input Voltage
AC 100-240 V (50/60 Hz)
Power Consumption (On mode)
41.3 W
Power Consumption SDR (On mode)
41.3 kWh/1000h
Power Consumption (Max)
240 Watt
Power Consumption Stand by
0.3 Watt
Power Consumption Sleep
0.3 Watt
Power Consumption (Off Mode)
0.3 Watt
On / Off Switch
Yes

Dimensions & Weight

Dimensions & Weight Details
  • With stand (lowest position) - width: 37.3 in - depth: 9.8 in - height: 18 in - weight: 30.4 lbs
  • With stand (highest position) - width: 37.3 in - depth: 9.8 in - height: 22.7 in - weight: 30.4 lbs
  • Without stand - width: 37.3 in - depth: 2.3 in - height: 16.5 in - weight: 20.9 lbs

Dimensions & Weight (Shipping)

Shipping Weight
47.62 lbs

Environmental Standards

EPEAT Compliant
EPEAT Gold
ENERGY STAR Certified
Yes

Manufacturer Warranty

Service & Support
Limited warranty - replacement - 3 years - response time: next business day
Bundled Services
3-Years Advanced Exchange Service and Premium Panel Guarantee

Environmental Parameters

Min Operating Temperature
32 °F
Max Operating Temperature
104 °F
Humidity Range Operating
10 - 80% (non-condensing)

Support


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Dell UltraSharp 40 Curved WUHD Monitor - U4021QW

Est. Value
$2,599.99
Save
$650.00
Shipping
Free
Dell Price
1949.99
back in rewards
Product ID
u4021qwsap

Features


 

Give your visuals power

Give your visuals power

More screen to captivate you: Stay on task with immersive productivity on the world’s first 40-inch curved ultrawide WUHD 5K2K monitor.i With 35% more onscreen space than a 32-inch 4K 16:9 screen, you have room to view all of your work at once.

A view that draws you in: The 2500R curved screen creates a wider field of view, minimizes reflection and offers near uniform visual focus, for a comfortable, panoramic, wrap-around view.

Unmatched clarity: Across that additional screen space, you’ll see fine, intricate details with ultra high 5120 x 2160 resolution and a 140 ppi pixel density.

Consistent, vibrant colors: Expect consistent color and picture quality across a wide viewing angle, with IPS technology. See true-to-life color with an incredible color depth of 1.07 billion colors and wide color coverage across industry standards, including 100% sRGB, 100% Rec. 709 and 98% DCI-P3. DCI-P3 (which offers nearly 25% more coverage than sRGB), enables a wider range of colors and is quickly becoming the color standard for creating and viewing content.

All-encompassing sound: Integrated dual 9W speakers deliver quality sound for an auditory experience that pulls you in even further.

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Your productivity hub

Your productivity hub

Connect to productivity: With Thunderbolt™ 3 and RJ45, this monitor serves as a productivity hub that delivers stable Etherneti and up to 90W of power deliveryi—all in a clutter-free setup.

Lightning speed: Thunderbolt™ 3 delivers speeds of up to 40Gbpsi, creating one compact port that does it all—delivering the fastesti and most versatile connection to any dock, displayi or data peripheral.

Extensive connectivity: Easily connect to a variety of devices with extensive connectivity options, including Thunderbolt™ 3, DP1.4, HDMI and super speed USB 10Gbpsi. Plus, quick-access USB-C® and super speed USB 10Gbpsi ports conveniently located at the front, enable fast connection to peripherals, such as storage devices and mobile phones, with up to 15W charging capability (via USB-C).

Enhanced manageability: MAC Address pass-throughi, PXE Boot, and Wake-on-LAN are conveniently built in.

Multitask efficiently: Effortlessly connect two PC sources to your monitor. Our intelligent Auto KVM feature detects the second connected PC and seamlessly switches controls over. View content from both PC sources with Picture-by-Picture (PbP) and Picture-in-Picture (PiP), and use KVM (keyboard, video and mouse) to control both PCs with a single keyboard and mouse.

Masterful design

Masterful design

Easy on the eyes: Experience vibrant color that's easy on your eyes with ComfortView Plusi, an always-on, built-in low blue light screen that reduces harmful blue light emissions while delivering excellent color performance.

Beauty meets function: Crafted with a premium, platinum silver finish, this stylish monitor features a compact base and a hidden cable management design that runs the cables through the monitor riser for a clutter-free setup. Plus, you can navigate the menu and adjust screen settings with the easy-to-use joystick control.

Comfort is key: Tilt, swivel and adjust the height of your monitor because you should be comfortable however and wherever you work.

Accessibility: Dell Technologies is committed to diversity and we are continually improving the user experience for everyone. In our ongoing efforts to strive for digital accessibility, this monitor meets Section 47 CFR 79.107 of the 21st Century Communications and Video Accessibility Act (CVAA). Select on-screen text menus and commands, displayed via the On-Screen Menu function, will be narrated using text-to-speech synthesis to aid accessibility of the visually impaired. Read more about our commitment to enabling digital accessibility for people with disabilities here.

Dell Display Manager

Dell Display Manager

Productive at every level: Easy Arrange allows you to easily tile multiple applications across one or more screens with 38 pre-set window partitions and the ability to personalize up to five windows, giving you improved multitasking abilities.i

Seamless transitions: The auto-restore feature remembers where you left off, so applications will go back to where you left them, even after you’ve unplugged.

More ways to manage: Asset management reports allow IT managers to quickly capture and track monitor information as well as configure multiple monitors at once through a single setup.

The key to convenience: Shortcut keys can save you even more time, letting you easily configure your display management settings so you can get to work faster.

Expanded compatibility: With support for multiple operating systemsi, Dell Display Manager helps you stay productive however you work.

Green thinking: for today and tomorrow

Environmental standards: This monitor meets the latest regulatory and environmental standards such as EnergyStar®, TCO Certified and registered under EPEAT®i.

Eco-conscious packaging: To reduce our manufacturing impact on the environment, this monitor is shipped Styrofoam-free and the paper-based packaging is made of at least 75% recycled cardboard.

Energy conservation: Save energy when your monitor is not in use with PowerNapi, a feature that dims or puts your monitor to sleep when it’s not in use.

Advancing sustainability: Dell Technologies is committed to reducing environmental impact throughout the product lifecycle. Read more about our commitment to sustainability and our 2030 Social Impact goals here, and our product’s carbon footprint here.
Green thinking: for today and tomorrow
Connectivity Options

Connectivity Options

Ports & Slots:
1. Security lock slot | 2. Power connector | 3. HDMI port | 4. HDMI port | 5. DisplayPort in | 6. Audio line-out porti | 7. Thunderbolt™ 3 (90W)/DisplayPort | 8. USB upstream port | 9. Super speed USB 10 Gbps (USB 3.2 Gen 2 (4)) | 10. RJ45 | 11. USB-C downstream port | 12. Stand lock

Cables included: Power cable | DisplayPort cable (DP to DP) | Super speed USB 5 Gbps (USB 3.2 Gen1) Upstream Cable (Type-A to Type-B) | HDMI cable | Thunderbolt™ 4 (USB-C) Active Cable

Peace of mind, guaranteed

Our products are engineered with care and precision, so we guarantee support and peace of mind.

A brand you can rely on

A brand you can rely on

As the No. 1 monitor company worldwide for seven consecutive years (2013 to 2020)i, we take pride in our unyielding commitment to quality and the utmost satisfaction of our customers.

Premium Panel Exchange

Premium Panel Exchange

The Dell Premium Panel Exchange allows a free panel replacement during the Limited Hardware Warrantyi period even if only one bright pixel is found.

Advanced Exchange Service

Advanced Exchange Service

Your monitor comes with a 3-year Advanced Exchange Servicei so that if a replacement becomes necessary, it will be shipped to you the next business day during your 3-year Limited Hardware Warranty.i

Accessories

Complete your experience with accessories designed to make the most of your Dell UltraSharp Monitor.

KM7321W Premier Multi-Device Wireless Keyboard and Mouse

Dell Premier Multi-Device Wireless Keyboard and Mouse – KM7321W

Multi-task seamlessly across 3 devices with this premium full-sized keyboard and sculpted mouse combo with programmable shortcuts and 36 months battery lifei.

XPS 9510

Dell Mobile Adapter Speakerphone – MH3021P

World’s first USB-C adapter with integrated speakerphone offers an all-in-one connectivity and conferencing solution.

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Redefine productivity on this revolutionary 40” curved WUHD 5K2K monitor that delivers exceptional color and clarity.