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Dell UltraSharp 34inch QHD Ultra Wide 1440p Curved 90W USB-C Hub RJ45 Monitor [U3421WE]

4.4 4.4 out of 5 stars 89 ratings

Sustainability features

This product has sustainability features recognized by trusted certifications.

Worker well-being

Manufactured on farms or in facilities that protect the rights and/or health of workers.

As certified by
TCO Certified
TCO Certified
TCO Certified TCO Certified

TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

Learn more about this certification

Manufacturing practices

Manufactured using processes that reduce the risk of negative environmental impact.

As certified by
TCO Certified
TCO Certified
TCO Certified TCO Certified

TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

Learn more about this certification

Energy efficiency

Conserves energy compared to similar products.

As certified by
TCO Certified
TCO Certified
TCO Certified TCO Certified

TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

Learn more about this certification

Safer chemicals

Made with chemicals safer for human health and the environment.

As certified by
TCO Certified
TCO Certified
TCO Certified TCO Certified

TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

Learn more about this certification

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Currently unavailable.
We don't know when or if this item will be back in stock.
Screen Size 34 Inches
Display Resolution Maximum 3440 x 1440 Pixels
Brand Dell
Special Feature Curved Screen, Ultrawide Screen, Blue Light Filter, Anti-Glare Coating, Built-In Speakers
Refresh Rate 60 Hz

About this item

  • 0210-AXQL, 834832

This product is available as Renewed.

Dell UltraSharp 34inch Curved 90W USB-C Hub RJ45 Monitor [U3421WE] (Renewed)
Dell UltraSharp 34inch Curved 90W USB-C Hub RJ45 Monitor [U3421WE] (Renewed) $624.26 & FREE Shipping
(2)
Works and looks like new and backed by the Amazon Renewed Guarantee

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Dell UltraSharp 34inch QHD Ultra Wide 1440p Curved 90W USB-C Hub RJ45 Monitor [U3421WE]
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PriceCurrently unavailable.-8% $628.59
Typical: $681.86		-13% $349.00
List: $399.99		$387.21-32% $249.99
List: $369.99		-20% $399.99
List: $499.99
Delivery—
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Get it May 6 - 8
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Customer Ratings
4.44.4 out of 5 stars89
4.34.3 out of 5 stars12
4.64.6 out of 5 stars3,616
4.74.7 out of 5 stars3
4.34.3 out of 5 stars1,406
4.44.4 out of 5 stars3,308
Picture quality
—
4.0
4.4
—
4.2
4.2
Screen quality
—
3.7
4.2
—
4.0
3.9
Value for money
—
—
4.5
—
3.9
4.1
Brightness
—
—
4.5
—
4.3
4.4
For gaming
—
—
4.4
—
3.3
3.5
Sold By
—
IT Discount Center
Amazon.com
SpaceBound
Amazon.com
Amazon.com
display size
34 inches
34.1 inches
34 inches
—
27 inches
34 inches
resolution
QHD Ultra Wide 1440p
QHD Wide 1440p
QHD Wide 1440p
—
4K UHD 2160p
WQHD 3440 x 1440
display technology
LED
LCD
3440 X 1440
LCD
—
LCD
hardware interface
displayport, usb c, usb3.2 gen 1
usb, displayport, hdmi, ethernet, usb c
displayport, hdmi, usb3.2 gen 1, 3 5 mm audio
hdmi, displayport
hdmi, 3 5 mm audio, usb c, usb3.2 gen 1
bluetooth, ethernet, usb, hdmi, solid state drive, displayport, thunderbolt 4
viewing angle
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
178 degrees
mounting type
Desk Mount
Wall Mount
Wall Mount
Wall Mount
Wall Mount
Wall Mount

What's in the box

  • Component
  • Charger
  • Manual

    • Product Description

    An immersive 34" WQHD curved monitor with wide color coverage and extensive connectivity including RJ45, USB-C® and quick-access front ports.

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    Other Technical Details

    Additional Information

    Warranty & Support

    Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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    Sustainability features

    Sustainability features

    This product has sustainability features recognized by trusted certifications.

    Worker well-being

    Manufactured on farms or in facilities that protect the rights and/or health of workers.

    As certified by
    TCO Certified
    TCO Certified
    TCO Certified TCO Certified

    TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

    Learn more about this certification

    Manufacturing practices

    Manufactured using processes that reduce the risk of negative environmental impact.

    As certified by
    TCO Certified
    TCO Certified
    TCO Certified TCO Certified

    TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

    Learn more about this certification

    Energy efficiency

    Conserves energy compared to similar products.

    As certified by
    TCO Certified
    TCO Certified
    TCO Certified TCO Certified

    TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

    Learn more about this certification

    Safer chemicals

    Made with chemicals safer for human health and the environment.

    As certified by
    TCO Certified
    TCO Certified
    TCO Certified TCO Certified

    TCO Certified identifies IT products with lower environmental and climate impact, safer chemicals, and circular design which reduces e-waste. Criteria for social responsibility are also included to reduce the risk of human rights violations, child labor, and health and safety issues for workers in the supply chain. To ensure that all criteria are being met, independent verification organizations spend more than 20,000 hours on product testing and supply chain assessments each year. The organization behind TCO Certified is TCO Development.

    Learn more about this certification

    Part of
    Sustainability features
    Climate Pledge Friendly

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    89 global ratings
    Great for software development.
    4 Stars
    Great for software development.
    I bought this renewed here on Amazon for half the price. Such a great deal 👌🏽🤌🏽Great display! Love the ability to only use one USBc connection to my MacBook Pro M1, which provides good power delivery.I only use this monitor for Software Development and browsing, I’m not a gamer at all.Built-in Speaker is decent for my use (watching videos). Don’t expect to have an adequate music listening experience though.. but we all already know that for monitor speakers.Plenty of people will complain about pixelation of text when pairing a 2K monitor with an Apple machine. To mitigate the issue, install the BetterDisplay App and enable native smooth resolution scaling. Just search for “Fix for fuzzy text with MacOS UI” in YouTube, by ‘Teoh on Tech’—that will proved better explanation and guidance. Note, it is $15 for the license. It’s perpetually though, and can be used with multiple devices. It really makes the text much sharper, which may reduce eye fatigue and frustration lol.Additionally set the Color profile of the monitor to Generic RGB in system settings. I personally like this, it gets close to the color profile of the MacBook.I opted for this monitor because I was having the flickering issue with a 32inch Dell 4K monitor previously.. (this is a common issue with M1/M2 machines and 4K external display).I’m happy with the purchase.I only took 1 star off because the renewed order didn’t come with a power cord haha.Anyways, that is all. Good day to you all.
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    Top review from the United States

    William
    4.0 out of 5 stars Great for software development.
    Reviewed in the United States on May 15, 2023
    I bought this renewed here on Amazon for half the price. Such a great deal 👌🏽🤌🏽

    Great display! Love the ability to only use one USBc connection to my MacBook Pro M1, which provides good power delivery.
    I only use this monitor for Software Development and browsing, I’m not a gamer at all.

    Built-in Speaker is decent for my use (watching videos). Don’t expect to have an adequate music listening experience though.. but we all already know that for monitor speakers.

    Plenty of people will complain about pixelation of text when pairing a 2K monitor with an Apple machine. To mitigate the issue, install the BetterDisplay App and enable native smooth resolution scaling. Just search for “Fix for fuzzy text with MacOS UI” in YouTube, by ‘Teoh on Tech’—that will proved better explanation and guidance. Note, it is $15 for the license. It’s perpetually though, and can be used with multiple devices. It really makes the text much sharper, which may reduce eye fatigue and frustration lol.

    Additionally set the Color profile of the monitor to Generic RGB in system settings. I personally like this, it gets close to the color profile of the MacBook.

    I opted for this monitor because I was having the flickering issue with a 32inch Dell 4K monitor previously.. (this is a common issue with M1/M2 machines and 4K external display).
    I’m happy with the purchase.

    I only took 1 star off because the renewed order didn’t come with a power cord haha.
    Anyways, that is all. Good day to you all.
    Customer image
    William
    4.0 out of 5 stars Great for software development.
    Reviewed in the United States on May 15, 2023
    I bought this renewed here on Amazon for half the price. Such a great deal 👌🏽🤌🏽

    Great display! Love the ability to only use one USBc connection to my MacBook Pro M1, which provides good power delivery.
    I only use this monitor for Software Development and browsing, I’m not a gamer at all.

    Built-in Speaker is decent for my use (watching videos). Don’t expect to have an adequate music listening experience though.. but we all already know that for monitor speakers.

    Plenty of people will complain about pixelation of text when pairing a 2K monitor with an Apple machine. To mitigate the issue, install the BetterDisplay App and enable native smooth resolution scaling. Just search for “Fix for fuzzy text with MacOS UI” in YouTube, by ‘Teoh on Tech’—that will proved better explanation and guidance. Note, it is $15 for the license. It’s perpetually though, and can be used with multiple devices. It really makes the text much sharper, which may reduce eye fatigue and frustration lol.

    Additionally set the Color profile of the monitor to Generic RGB in system settings. I personally like this, it gets close to the color profile of the MacBook.

    I opted for this monitor because I was having the flickering issue with a 32inch Dell 4K monitor previously.. (this is a common issue with M1/M2 machines and 4K external display).
    I’m happy with the purchase.

    I only took 1 star off because the renewed order didn’t come with a power cord haha.
    Anyways, that is all. Good day to you all.
    Images in this review
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    Customer image
    2 people found this helpful
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    Top reviews from other countries

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    Bartosz Masztalerz
    5.0 out of 5 stars Rewelacja
    Reviewed in Poland on March 10, 2023
    Verified Purchase
    Jestem tak zadowolony, że aż napiszę recenzję :) Wygląd i parametry można znaleźć w opisie, więc napiszę o samym użytkowaniu.
    Monitor jest stabilny (noga jest solidna), ma przydatny otwór w node na poprowadzenie kabli (w zestawie). Jest fabrycznie skalibrowany, błąd ma mały, co potwierdził znajomy z kalibratorem.
    Menu jest bogate w opcje i całkiem przyjazne. Joystick z tyłu monitora jest łatwy w użyciu.
    Najlepszą i super działającą funkcją jest KVM. MacBook Pro M1 podłączony 1 kablem USB-C a laptop z Windows HDMI/USB/zasilanie. Przełączać się można z menu monitora, skrótem klawiszowym (aplikacja jest dostępna na Mac i Windows), albo sam się przełącza jeśli włączymy drugi monitor.
    Sama apliacja jest brzydka, ale bardzo funkcjonalna, więc po 5 minutach ustawiania można o niej zapomnieć. Aplikacja ma dobry manager okien, pozwalający na wykorzystanie dużej rozdzielczości i powierzchni roboczej.
    Monitor ma dużo portów USB w tym 2 pod spodem, więc łatwo tam wpiąć ładowarkę albo pendriva.
    Głośniki są głośne i dają czysty dźwięk. Świetnie się sprawdzają w Teams/Zoom albo do oglądania Youtube. Do muzyki i filmów używam innych głośników (które są za to słabe to telekonferencji).
    Ramka u góry ekranu pozwala na założenie kamery internetowej. Kamera jest stabilna i nie zasłania ekranu.
    Żałuję, żę nie kupiłem tego monitora wcześniej.
    2 people found this helpful
     Report
    Amazon Kunde
    5.0 out of 5 stars Sehr positiv überrascht
    Reviewed in Germany on November 21, 2022
    Verified Purchase
    Der Monitor ersetzt meinen guten alten 24" Syncmaster der für das Homeoffice einfach zu klein geworden ist. Für diesen Monitor habe ich mich vor allem wegen des KVM Switch und den beiden HDMI Eingängen entschieden.
    Ich war wegen der teilweise kritischen Rezensionen etwas unsicher ob ich den Monitor kaufen soll und habe ein paar Mal gezögert ehe ich ihn dann bestellt habe.
    Die Lieferung war pünktlich und unkompliziert, allerdings kommt der Monitor in der Originalverpackung ohne was drumherum.
    Der innere Teil der Verpackung wirkt sehr durchdacht - wichtig ist den Monitor liegend und nicht stehend auszupacken. Das steht zwar außen drauf aber ist wirklich wichtig.
    Bisher kann ich nur Gutes schreiben, der Monitor macht exakt was er soll.
    Der Kvm-Umschalter funktioniert tadellos.
    Drucker/Scanner geht über den USB-Anschluss perfekt für beide Rechner, genauso wie Maus und Tastatur.
    Bild ist super - vielleicht ist das bei einem Umstieg von einem betagten 24 Zoll Monitor auch völlig normal - aber es ist ein riesen Unterschied und macht einfach Spaß damit zu arbeiten.
    Auch der Displaymanager ist richtig klasse. Vor allem fand ich die Konfiguration sehr einfach.
    Der Ton ist o.k. nicht mehr und nicht weniger. Die meiste Zeit arbeite ich mit meinem Jabra-Tischgerät. Für ein paar Youtube-Videos gehen die Lautsprecher immer.
    Die Höhenverstellung funktioniert ebenfalls perfekt inkl. der Neigung nach hinten. Der Standfuss ist wirklich stabil und die Kabeldurchführung sehr gelungen.
    Der Ein-/Ausschalter mit dem Joystick daneben liegt sehr gut erreichbar auf der Rückseite rechts unten. Spart auch noch ein wenig Strom.
    Die Anschlüsse sind tatsächlich sehr eng beieinander und man sollte möglichst alles einstecken wenn man den Monitor aufbaut. Später kommt man zwar auch noch hin wenn man den Monitor ganz nach oben schiebt aber ist dann ziemlich mühsam.
    Insgesamt wirkt der Monitor sehr wertig auf mich.
    Zu Gaming und professioneller Grafikbearbeitung kann ich nicht sagen. Dafür nutze ich ihn nicht.
    Jetzt muss er noch so lange halten wie der Vorgänger :-)
    5 people found this helpful
     Report
    Tim Mironov
    5.0 out of 5 stars Great monitor
    Reviewed in Spain on November 14, 2022
    Verified Purchase
    It's my second item.
    Great as always.
    Customer image
    Tim Mironov
    5.0 out of 5 stars Great monitor
    Reviewed in Spain on November 14, 2022
    It's my second item.
    Great as always.
    Images in this review
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    Customer image
    Report
    On an adventure
    5.0 out of 5 stars Amazing 34” monitor
    Reviewed in the United Kingdom on May 14, 2022
    Verified Purchase
    Absolutely love this monitor! The 34” width is perfect for work. I can keep open a Word doc, spreadsheet, email & Slack all at once and all visible together. Makes work so much more efficient. The screen quality is excellent, the range of connections inc USB-C is really good and ideal for connecting lots of other devices Inc webcam, printer, etc. The setup was really easy and the connection to my new MacBook Pro works a dream. Cannot fault this is cceot for the fact they delivered a US plug instead of U.K. but the supplier quickly sent out a U.K. plug for free whenever I asked. Really really good screen and service!
    One person found this helpful
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    Thomas Guilloux
    5.0 out of 5 stars Grand écran haut de gamme
    Reviewed in France on August 1, 2021
    Verified Purchase
    Remplacement d'un increvable Dell UltraSharp 2410, qui va sur ses 11 ans...

    Je passe donc d'un 1920 x 1200 à 3440 x 1440 ! Je gagne 240 pixels en vertical, mais la dalle reste d'environ 33 cm de hauteur. C'est ma déception, j'espérais quelques centimètres de plus dans cette dimension.
    En largeur, c'est évidemment autre chose, et il me faudra m'habituer. Je pense ne pas tout utiliser, comme sur mon navigateur pour l'instant, c'est donc surtout fait pour le multi-fenêtre.
    Câblage correct fourni : DP, HDMI, USB-C et USB-A/B 3.0 plus câble d'alimentation (2 m).

    J'ai agrandi l'affichage Windows à 125 % et ça passe pas trop mal dans l'ensemble. Faut aussi augmenter la sensibilité de la souris vu les dimensions.
    Légères fuites de lumières visibles dans les coins sur l'écran sans signal vidéo, à l'allumage, et rien après. Autrement l'écran est fourni avec un certificat garantissent une homogénéité sur toute la dalle (99-102 % selon la zone) plus respect du gamma, température de couleur, etc. Pas encore cherché les très éventuels pixels morts mais je ne m'inquiète pas trop. Le site Dell prévoit une garantie de trois ans avec échange d'office. un des facteurs qui m'a motivé à l'achat même si c'est en utilisation personnelle.

    En jeu, Genshin Impact a accepté ce format sans rechigner, et c'est vraiment pratique d'avoir cette grande vision latérale. Autres jeux pas encore testés. Attention, c'est un écran capé à 60 Hz, point. Et en IPS, contraste réduit.
    Donc pas idéal pour le jeu. Mais j'ai d'autres centres d'intérêt, comme la photo. Or c'est un écran calibré d'usine à delta < 2, en fait presque 1 selon le certificat fourni. Il peut aussi servir de concentrateur USB.

    Plus un espace de couleur DCI-P3 pour gamut élargi. Enfin là ça ne saute pas aux yeux, ma sonde Spyder indique que je suis passé de 100/93/97 % de sRGB/NTSC/adobeRGB sur le U2410 à 100/83/88 sur le U3421. Mais il est en mode sRGB par défaut.
    Si on active le mode DCI-P3, c'est beaucoup plus sombre, je ne suis pas allé au delà en test, pas sûr que ma sonde soit d'ailleurs adaptée. Elle ne mesure pas non plus la luminosité ou les reflets, difficile d'évaluer ces critères. Enfin, ce n'est pas fait pour regarder les films en HDR ! L'écran est décrit pour 300 cd/m².

    L'écran possède aussi deux enceintes intégrées, 2 x 5 W, non testées, j'ai une bien meilleure restitution avec mon kit 5.1 actuel. Mais ça doit pouvoir dépanner au bureau.
    La page officielle décrit plein d'autres fonctions bureautiques (gestion simultanées de deux ordinateurs, etc.) que je n'ai pas la possibilité ou l'intention de tester, mais pas grave, je voulais surtout un écran de qualité, et j'espère durable, comme le précédent. L'investissement d'une décennie, je me permets donc un minimum de qualité et de prix d'achat.

    Pour finir : envoi assez rapide, et même plus que prévu, ça m'a permis de l'installer et le tester tranquillement avant congés. Quelques coups dans les coins et de la poussière sur le carton mais transport à partir d'Allemagne sans soucis apparents. Attention à la manipulation, ce n'est pas trop lourd mais encombrant à cause de la largeur. Bien protégé dans le carton, avec ce qu'il faut de couches pour éviter rayures mais pas de polystyrène et autres plastiques ingérables.
    Une fois placé sur un bureau, par contre, le grand pied et la finesse font que ça ne dérange pas trop, on peut poser des objets autour ou au-dessous aisément.

    En résumé, une belle bête !
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