Dell UltraSharp U4021QW 39.7" 5K2K WUHD Curved Screen LED LCD Monitor - 21:9 - Black, Silver

40" Class - In-plane Switching (IPS) Technology - 5120 x 2160 - 1.07 Billion Colors - 300 Nit - 5 ms - 60 Hz Refresh Rate - HDMI - DisplayPort - USB Hub
Availability: In stock
Manufacturer part number: DELL-U4021QWA


Adjustable Stand Height Yes
Aspect Ratio 21:9
Backlight Technology LED
Brand Name Dell
Brightness 300 Nit
Built-in Devices USB Hub
Color Black
Color Silver
Color Gamut 100% sRGB
Color Gamut 100% Rec. 709
Color Gamut 98% DCI-P3
Color Supported 1.07 Billion Colors
Curved Screen Yes
Depth with Stand 9.80"
DisplayPort Yes
Energy Star Yes
Environmental Certification ENERGY STAR 8.0
Environmental Certification TCO Certified Displays
Environmental Certification EPEAT Gold
Environmentally Friendly Yes
Features sRGB
Features 3H Surface Hardness
Features Anti-glare
Features Security Lock
Features Stand Lock
Features ComfortView Plus
Features Picture in Picture
Features Picture by Picture
Features Low Blue Light
Features Flicker-free
Features Wide Viewing Angle
Features Cable Management
Features PowerNap
HDCP Supported Yes
Height with Stand 18"
Horizontal Viewing Angle 178°
Limited Warranty 3 Year
Manufacturer Dell Technologies
Manufacturer Part Number DELL-U4021QWA
Manufacturer Website Address
Marketing Information

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 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.

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 40Gbps, 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 10Gbps. 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 color 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 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.

Maximum Resolution 5120 x 2160
Native Contrast Ratio 1,000:1
Network (RJ-45) Yes
Number of DisplayPorts 1
Number of HDMI Inputs 2
Number of Screens 1
Number of Speakers 2
Number of USB Ports 6
Number of USB Type-B Upstream Ports 1
Number of USB Type-C Ports 1
Off-Mode Power Consumption 300 mW
Operating Power Consumption 240 W
Package Contents
  • UltraSharp U4021QW Widescreen LCD Monitor
  • Power Cable
  • 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
Panel Technology In-plane Switching (IPS) Technology
Pixel Pitch 7.1 mil
Product Line UltraSharp
Product Model U4021QW
Product Name UltraSharp U4021QW Widescreen LCD Monitor
Product Type LCD Monitor
Response Time 5 ms GTG (Fast)
Screen Mode 5K2K WUHD
Screen Size Class 40"
Speakers Yes
Stand Adjustments Height
Stand Adjustments Swivel
Stand Adjustments Tilt
Standard Refresh Rate 60 Hz
Standby Power Consumption 300 mW
TCO Certified Yes
Thunderbolt Yes
USB Type-C Yes
Vertical Viewing Angle 178°
VESA Mount Compatible Yes
Viewable Screen Size 39.7"
Weight (Approximate) 20.90 lb
Weight with Stand (Approximate) 31.75 lb
Width with Stand 37.30"