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Dell U4021QW 40-inch UltraSharp Ultra-wide WUHD Curved Monitor

SKU 706440
Stock with SupplierCall for ETA

Dell U4021QW 40-inch UltraSharp Ultra-wide WUHD Curved Monitor

40"/5120x2160 WUHD/IPS/8ms/21:9/Curved/HDMI,DP,Thunderbolt 3/RJ45/Speakers/Height Adj,Swivel,Tilt/VESA/3 Yrs Wty


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


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. 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 colours: Expect consistent colour and picture quality across a wide viewing angle, with IPS technology. See true-to-life colour with an incredible colour depth of 1.07 billion colours and wide colour 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 colours and is quickly becoming the colour 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.


Your productivity hub

Connect to productivity: With Thunderbolt 3 and RJ45, this monitor serves as a productivity hub that delivers stable Ethernet and up to 90W of power delivery—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 fastest and most versatile connection to any dock, display 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-through, 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

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


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.

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.


Green thinking: for today and tomorrow

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

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.


Panel Size: 40-Inch

Panel Type: IPS

Resolution: WUHD (5120 x 2160 @ 60 Hz)

Brightness (Max): 300 cd/m²

Native Contrast (typ): 1000:1

Aspect Ratio: 21:9

Response Time: 8 ms (grey-to-grey normal); 5 ms (grey-to-grey fast)


Signal Input: 2 x HDMI (HDCP 2.2), DisplayPort (HDCP 2.2), Thunderbolt 3 / USB-C upstream (DisplayPort 1.4 mode / power up to 90W)

PC Audio Input: Not Available

AV Audio Input: Not Available

Earphone jack: Not Available


Tilt: -5 to +21 degree

Pivot: Not Available

High Adjustment: Yes

Swivel (left/right): 60 degree

Wall Mount: VESA (100 x 100 mm)

Cabinet Color: Black and Silver stand

Speakers: Integrated dual 9W speakers

Webcam: Not Available

Security: Security lock slot

USB Hub: USB-C 3.2 Gen 2 downstream (power up to 15W), USB upstream (Type B)

4 x USB 3.2 Gen 2, USB 3.2 Gen 2 downstream with Battery Charging 1.2

Network: RJ45 Ethernet LAN

Card Slot: Not Available

3D: Not Available

Dimension (W x D x H): 94.66 x 24.8 x 45.78 cm

Weight: 13.8 kg

Warranty: 3-Years Warranty


DisplayPort cable - DisplayPort to DisplayPort - 1.8 m

USB 3.2 Gen 1 upstream cable - USB Type A to B - 1.8 m

HDMI cable - 1.8 m

Thunderbolt 4 active cable - USB-C


User Documentation

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