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Dell

Dell U4021QW UltraSharp 40-inch Curved WUHD Monitor

  • Based on 60 reviews
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Availability: In Stock.
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Arrives Friday, Oct 9
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Features

  • Country of origin : China
  • Package dimensions : 42.5" L x 21.0" W x 9.5" H
  • Package weight : 47.7 Lbs
  • Package Quantity :1

Description

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.

Brand: Dell


Screen Size: 40 inches


Resolution: 5K UHD 2160p Ultra Wide


Aspect Ratio: 219


Screen Surface Description: Glossy


Aspect Ratio: 219


Screen Finish: Glossy


Contrast Ratio: 10001


Refresh Rate: 60 hertz


Display Type: LCD


Display Technology: LCD


Brightness: 300 cd/m2


Pixel Pitch: 0.28


Picture Quality Enhancement Technology: IPS technology, 100% sRGB, 98% DCI-P3


Screen Size: 40 inches


Item Dimensions D x W x H: 21"D x 42.5"W x 9.5"H


Item Weight: 29 pounds


Resolution: 5K UHD 2160p Ultra Wide


Display Resolution Maximum: 5120 x 2160 pixels


Native Resolution: 3840x2160


Power Consumption: 90 watts


Voltage: 230 volts


Connectivity Technology: HDMI


Hardware Connectivity: HDMI, USB


Adaptive Sync: G-Sync Compatible


Additional Features: Curved


Specific Uses For Product: Gaming


Color: Black


Mounting Type: Wall Mount


Compatible Devices: Computing Devices & Gaming Consoles


Warranty Type: Limited Warranty


Brand: Dell


Model Number: U4021QW


Model Name: U4021QW


Warranty Description: 3 Year Manufacturer Limited


UPC: 884116381365


Manufacturer: DELL MONITORS


Included Components: HDMI Port


Response Time: 1 milliseconds


Processor Count: 1


Total Number of HDMI Ports: 1


Total Usb Ports: 4


Total Thunderbolt Ports: 1


Number of Component Outputs: 3


Total USB 3.0 Ports: 7


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Working Fine on OSX Big Sur at 5120 * 2160
Love this monitor. Have a 2019 Mac Pro driving this monitor plus two 4K displays. Only had it a week, but the extra screen real estate has already increased my productivity which is why I got it. Far more than I thought. I had held off on getting a monitor like this as the vertical resolution on available monitors wasn't high enough. At 5120 * 2160 this is the same vertical resolution as. 4K display. I use the monitor at the native settings and have no trouble reading text (I'm 63 with the eyesight of a 63-year-old). There is a big difference between multiple flat panels and one larger curved monitor - no bezels is a huge difference. I don't play video games so the 60 hz setting is fine for what I do. While the monitor is bright enough, it is not as bright as the $5,000 Apple Pro display. Then again, it is not $5,000. If someone stole it, I'd replace it the next day. ... show more
Reviewed in the United States on April 25, 2021 by Professional Investor
    • Heaven for programmers writing code
I am a software develop and I upgraded from a 27" 4k display to the Dell U4021QW and I am very pleased. I can have 3-4 windows of code up. Text is crisp and easy to read. The built-in KVM and Window positioning software works well on my Mac. I have not run into firmware bugs as mentioned in earlier reviews. ... show more
Reviewed in the United States on December 13, 2023 by Ty
    • beware warranty and J-Tech digital reseller
Beware buying from J-Tech Digital, Inc. I found them to be a disreputable and dishonorable reseller of Dell products. I bought a $2000 Dell monitor from J-Tech with Dell’s 36 month warranty. As luck would have it, the monitor died at month 35. Dell would not honor the warranty because they said J-Tech was the first buyer of the monitor and so the warranty had been initiated several months prior to my purchase and so the warranty was now expired. This means J-Tech sold a used Dell product while listing it as new on Amazon. I imagine this may violate Amazon’s terms of use and my attorney will be following up with them separately. Upon calling J-Tech support I was told that J-Tech was unwilling to do ANYTHING to remedy the situation. ... show more
Reviewed in the United States on June 17, 2026 by Thomas Kennelly
    • Best Ultra-wide Monitor Money Can Buy (For Now)
I personally use my MBP 16 inch with this monitor and it works like a charm. I scale it down to the highest setting to have more real estate and the clarity is still amazing. I would recommend anyone looking for an ultrawide to go with this monitor. If you're not playing FPS games you could still game on this but this is meant to be a productivity monitor at the end of the day. ... show more
Reviewed in the United States on May 16, 2021 by Vikram Pal
    • Good idea, poor quality
I really like the form factor and functionality of this display. I had to return it due to 2 glaring issues. 1. There was a dead pixel. If you’re paying nearly $2,000 for a display, I expect to not have to deal with this type of poor QC. 2. It makes a very annoying humming sound when it runs. I’ve never dealt with this with any other Dell displays in the past so maybe it’s just that I got a bad model. But in any event, the inconvenience of having to ship/return a display of this size and the poor QC has lead me to order the same type of display from LG. ... show more
Reviewed in the United States on December 27, 2023 by Justin M.
    • Much better than two monitors
I use this monitor to work on scientific images. It's much better than anything I've ever had before. At first, I connected it with a Displayport 1.2 cable (not recommended, not in spec) and it would occasionally go black for a few seconds while doing video or zoom, and then come back. I changed to the recommended Displayport 1.4 cable and it's fine. I am extremely satisfied. I don't know anything about gaming, I don't do it. ... show more
Reviewed in the United States on December 13, 2022 by Amazon Customer
    • Fantastic monitor
I have it connected to my Surface Pro 7+ 1TB thru the Surface Dock 2 with USB-C connection with native resolution. (5120x2160) It works very nice so far.
Reviewed in the United States on April 28, 2021 by Amazon Customer
    • Monitor Flickers when using Zoom - M1 Mac 2020
I bought this monitor for an M1 Macbook Pro 2020 and for the first 7 days the monitor worked perfectly but after that, I started having issues with the monitor flickering and losing color. I tested out two different Thunderbolt cables just to make sure it wasn't my computer having issues and after testing out both cables, I still experience display flickering. The flicker seems to happen when using Zoom and sharing video or screen. I have disableed hardware acceleration on zoom for video and screening share. This seems to work but I am not sure yet. I am thinking about returning the item due to this. Update: after disabling Zoom hardware acceleration and I decided to test if the monitor flickers with a 45 minute zoom meeting. After 10 minutes on a Zoom call flickering started to happen as soon as participant shared their screen or I shared my. I will be returning this monitor Devices used to test monitor Model: M1 Mac mini 245GB SSD & Memory: 8 GB Model: M1 MacBook Pro 500GB SSD & Memory: 18 GB Monitored flickered on each device. I would not recommend this monitor for Mac users. ... show more
Reviewed in the United States on May 13, 2021 by Dbari

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