CES 2021: Dell Introduces 40-Inch 5K2K Ultrawide Monitor With Thunderbolt 3 Connectivity for Macs - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

CES 2021: Dell Introduces 40-Inch 5K2K Ultrawide Monitor With Thunderbolt 3 Connectivity for Macs

Dell this week unveiled a series of new monitors, and there is one in particular that stands out for Mac users: the UltraSharp 40 Curved WUHD Monitor.

dell ultrasharp 40 5k2k
A recipient of a CES 2021 Innovation Award, the UltraSharp 40 or "U4021QW" is the world's first 40-inch ultrawide curved monitor with a 5120×2160 resolution, also known as 5K2K or WUHD. This is not a true 5K resolution and instead works out to around 140 PPI, which is equivalent to a 32-inch 4K display, but with 33% more viewing space.

With a 21:9 aspect ratio, the UltraSharp 40 is ideal for users who want lots of screen real estate within a single display, but without compromising on resolution. Along with LG's ultrawide 34-inch 5K2K monitor from 2018, the UltraSharp 40 is one of the only ultrawide monitors with a "4K" resolution, with most having a lower QHD resolution of 2560×1440.

dell ultrasharp 40
A built-in Thunderbolt 3 port allows the UltraSharp 40 to be connected to a compatible Mac with a single cable, and the monitor can power a MacBook Pro with up to 90W of pass-through charging. Other connectivity includes two HDMI 2.0 ports, a DisplayPort 1.4 port, three 10Gbps USB-A ports, one USB Type-B upstream port, an Ethernet port, and a 3.5mm headphone/audio jack on the back of the monitor, plus one 15W USB-C port and another 10Gbps USB-A port on the bottom of the monitor for quick access.

Dell says the UltraSharp 40 is a 10-bit display that covers 100% of the sRGB and 98% of the DCI-P3 color spaces, producing 1.07 billion colors. However, for a high-end monitor, peak brightness is relatively low at 300 nits. Other specs include a fast 5ms response time, a 60Hz refresh rate, 2500R curvature, built-in KVM functionality, and integrated 9W speakers. Dell did not indicate whether there is HDR support, so it should not be expected.


The UltraSharp 40 is intended for content creators, creative professionals, data analysts, and coders. A picture-in-picture mode allows the UltraSharp 40 to mimic two displays side by side, and a so-called "ComfortView Plus" feature reduces blue light.

Dell says the UltraSharp 40 will be available beginning January 28, with pricing starting at $2,099.99 in the United States.

Tags: CES 2021, Dell

Popular Stories

iPhone Duo Display Cracking

Apple Alerts Stores to iPhone Duo's Display Cracking Issue

Friday October 30, 2026 3:20 pm PDT by
In a memo shared with Apple Stores and Apple Authorized Service Providers this week, and later obtained by MacRumors, Apple provided technicians with guidance on how to diagnose and address the iPhone Duo's inner display cracking issue. If a customer reports the issue, Apple advised technicians to inspect the iPhone Duo and repair or replace it in accordance with their standard procedures....
iPad mini OLED feature 1

Apple Executive Comments on New iPad Mini Lacking 120Hz Display

Thursday October 29, 2026 1:47 pm PDT by
While the new iPad mini has an OLED display, the device does not support ProMotion, meaning the display's refresh rate is limited to 60Hz instead of 120Hz. ProMotion support would have allowed for the iPad mini's refresh rate to automatically adjust from 10Hz to 120Hz depending on the content being displayed, but evidently Apple has kept the feature exclusive to the iPad Pro among iPad...
Pinched iPad Mini

Apple Avoids Showing Pinched Fingers on iPad Mini Page in South Korea

Thursday October 29, 2026 11:52 am PDT by
In the U.S. and most other countries, Apple's website shows the new iPad mini being held by pinched fingers, but this is not the case in South Korea. The new iPad mini shown with pinched fingers on Apple's website in the U.S. On its South Korean website, Apple simply shows an image of the iPad mini on its own. The new iPad mini shown without pinched fingers on Apple's website in South Korea ...

Top Rated Comments

Brookzy Avatar
76 months ago
Dear manufacturers,

Mac users want 200+ pixels per inch.

Sincerely,

Mac users.

Every. Damn. Year.
Score: 84 Votes (Like | Disagree)
sdiori Avatar
76 months ago

Ugh this would be amazing if it weren't curved.
At least they put in HDMI and DP inputs, unlike LG's monitors which only work on Macs.
Having owned 38” and 49” displays, I’d argue curvature is a necessity at this size for long term ease of use.

That said, I’m thinking hard about this monitor; the two additional years of warranty vs any LG future equivalent is enticing too.
Score: 25 Votes (Like | Disagree)
TheDailyApple Avatar
76 months ago
The low brightness and lack of HDR is a deal breaker for me. With most phones and TVs supporting HDR these days, color editing with that in mind is a must.
Score: 22 Votes (Like | Disagree)
76 months ago
140PPI, no HDR, 300 nits of brightness, and $2100? 🤨
Score: 19 Votes (Like | Disagree)
Rudy69 Avatar
76 months ago

Ugh this would be amazing if it weren't curved.
At least they put in HDMI and DP inputs, unlike LG's monitors which only work on Macs.
I really really hated curved TVs.... but I own a 49” ultra wide that has a curve.... and I actually wish the curve was BIGGER. It works really good when there’s a single expected viewpoint (unlike a tv)
Score: 18 Votes (Like | Disagree)
DesertNomad Avatar
76 months ago
I still think my XDR was worth it - even at the crazy price Apple gets for them.
Score: 16 Votes (Like | Disagree)
Latest Stories
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
14 hours ago
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
14 hours ago
Here's a New Tour of Apple's HomeView Software
Here's a New Tour of Apple's HomeView Software
14 hours ago
Apple Reveals New iPad Mini's Battery Capacity
Apple Reveals New iPad Mini's Battery Capacity
15 hours ago
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
17 hours ago
'Pluribus' Season 2 Reportedly Starts Production Today
'Pluribus' Season 2 Reportedly Starts Production Today
23 hours ago
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
1 day ago
HomeView Software 27.2: Wallpapers, Control Center, and More
HomeView Software 27.2: Wallpapers, Control Center, and More
1 day ago
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
1 day ago
iOS 27.3 Will Enable These Apple Intelligence Features in China
iOS 27.3 Will Enable These Apple Intelligence Features in China
1 day ago
Apple Says iOS 27.3 Beta Coming Next Week
Apple Says iOS 27.3 Beta Coming Next Week
1 day ago
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
1 day ago
14 New Things Your iPhone Can Do in iOS 27.2
14 New Things Your iPhone Can Do in iOS 27.2
1 day ago
iPhone Duo Review: One Week Later
iPhone Duo Review: One Week Later
1 day ago
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
2 days ago
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
2 days ago
MacBook Pro With Touch Display: 15 More Details Revealed
MacBook Pro With Touch Display: 15 More Details Revealed
2 days ago
Russia Places Apple on State Surveillance Registry
Russia Places Apple on State Surveillance Registry
2 days ago
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
2 days ago
Apple Has Released More Than 25 New Products in the Past Two Months
Apple Has Released More Than 25 New Products in the Past Two Months
2 days ago
Local Code Launches as Free, Private AI Assistant Tool for Mac
Local Code Launches as Free, Private AI Assistant Tool for Mac
2 days ago
Apple Acquires Ascend.io
Apple Acquires Ascend.io
2 days ago
HomePod Mini 2 Launches Today: All the New Features
HomePod Mini 2 Launches Today: All the New Features
2 days ago
AirTag 2 4-Pack Drops to New Low Price of $69.99
AirTag 2 4-Pack Drops to New Low Price of $69.99
2 days ago
Rian Johnson's iPhone Camera App Goes Viral
Rian Johnson's iPhone Camera App Goes Viral
2 days ago
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
2 days ago
Apple's Touchscreen MacBook Pro Could Ship 1.5M Units in 2027
Apple's Touchscreen MacBook Pro Could Ship 1.5M Units in 2027
2 days ago
New Apple TV 4K and iPad Mini: RAM Amounts Revealed
New Apple TV 4K and iPad Mini: RAM Amounts Revealed
2 days ago
Apple Executive Comments on New iPad Mini Lacking 120Hz Display
Apple Executive Comments on New iPad Mini Lacking 120Hz Display
2 days ago
Here's a Hands-On Look at HomePod Mini 2's New Two-Tone Colors
Here's a Hands-On Look at HomePod Mini 2's New Two-Tone Colors
2 days ago

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors