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Dell UltraSharp 34 Curved Thunderbolt Hub (U3425WE) · Photo source
Dell · UltraSharp
UltraSharp 34 Curved Thunderbolt Hub (U3425WE)
Dell's 34-inch curved ultrawide IPS Black monitor at 3440 x 1440 and 120Hz, with a Thunderbolt 4 hub, 90W charging, 2.5GbE Ethernet and built-in speakers, for laptop users who want a single-cable ultrawide desk.
- Size
- 34.14″
- Resolution
- 3440 × 1440
- PPI
- 109
- Panel
- IPS
- Refresh
- 120 Hz
- Brightness
- 300 nits
- HDR
- –
- USB-C power
- 90 W
What reviewers say
Reviewers agree it is a well-rounded ultrawide for work, praising its good contrast for IPS, 120Hz refresh, surprisingly decent speakers and very broad connectivity with Thunderbolt 4 and a KVM switch. Digital Trends found it expensive, not especially sharp and in need of calibration, though HotHardware measured excellent accuracy; RTINGS found glare distracting in sunny rooms.
From hothardware.com, digitaltrends.com and rtings.com
Specifications
Report a wrong or missing specDisplay
- Screen size
- 34.14″
- Resolution
- 3440 × 1440 (UWQHD)
- Sharpness
- 109 pixels per inch
- Panel
- IPS (IPS Black)
- Refresh rate
- 120 Hz
- Response time (grey to grey)
- 5 ms
- Brightness (typical)
- 300 nits
- Contrast ratio
- 2,000:1
- Colour range
- 98% DCI-P3, 98% Display P3, 100% sRGB
- DCI-P3 coverage
- 98%
- Colour accuracy (Delta E)
- Below 2
- Screen finish
- Matte
- Shape
- Curved (1900R)
- Colour depth
- 1.07 billion colours
- sRGB coverage
- 100% (CIE 1931)
- Colour accuracy
- Delta E < 2 (average) (DCI-P3, Display P3, sRGB, BT.709); factory calibration report in the box
- Response time detail
- 5 ms (Fast), 8 ms (Normal)
- Variable refresh range
- 48–120 Hz over DisplayPort and Thunderbolt 4; 48–100 Hz over HDMI (vertical scan range)
- Viewing angles
- 178° horizontal, 178° vertical (typical)
- Pixel pitch
- 0.2325 mm x 0.2325 mm
- Eye care
- ComfortView Plus hardware low blue light; TÜV Rheinland Eye Comfort 3.0 (5 star); ambient light sensor (Auto Brightness); flicker-free
Connections
- Video inputs
- HDMI 2.1 (TMDS), DisplayPort 1.4, Thunderbolt 4
- USB-C charging
- Up to 90 W
- USB ports
- 2 × USB-C, 5 × USB-A, Thunderbolt 4
- KVM switch
- Yes
- Ethernet
- Yes
- Speakers
- Yes
- HDMI detail
- 1 x HDMI (HDCP 1.4 & 2.2), up to 3440 x 1440 at 100 Hz TMDS as specified in HDMI 2.1
- DisplayPort detail
- 1 x DisplayPort 1.4 (HDCP 1.4 & 2.2), up to 3440 x 1440 at 120 Hz
- USB-C detail
- Thunderbolt 4 upstream (40Gbps, DisplayPort 1.4 Alt Mode, Power Delivery up to 90 W); USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream quick-access ports (15 W)
- Daisy chaining
- Thunderbolt 4 downstream port (video and data, 15 W)
- USB hub detail
- 4 x USB-A 10Gbps rear; quick access ports with 1 x USB-A 10Gbps (BC 1.2) and 2 x USB-C 10Gbps (15 W)
- Picture by picture
- Picture by Picture and Picture in Picture
- Audio out
- 3.5 mm audio line out
- Speaker detail
- 2 x 5 W
Design
- Stand adjusts
- Height, tilt, swivel
- VESA mount
- Yes
- Weight with stand
- 10.81 kg
- Height adjustment
- 150 mm
- Tilt
- -5° to 21°
- Swivel
- -30° to 30°
- VESA pattern
- 100 x 100 mm
- Size with stand
- 813.46 x 240.43 x 392.83–542.83 mm (W x D x H)
- Size without stand
- 813.46 x 105.08 x 359.15 mm (W x D x H)
- Weight without stand
- 7.78 kg
- Colours
- Silver
Power and support
- Power use
- 31.5 W on mode, 0.5 W standby, 1.9 W networked standby, 0.3 W off, 250 W maximum
- Energy class
- F
- Power supply
- 100–240 VAC, 50/60 Hz, 3.2 A (typical)
- Software
- Dell Display and Peripheral Manager (Easy Arrange)
- Certifications
- TÜV Rheinland Eye Comfort 3.0 (5 star), TÜV Rheinland hardware low blue light
- Warranty
- 3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange (UK)
- In the box
- Stand, power cable, DisplayPort 1.4 cable (1.8 m), HDMI cable (1.8 m), Thunderbolt 4 passive cable (1 m), USB-A to USB-C cable (1 m), factory calibration report
Pros and cons
Pros
- Thunderbolt 4 hub with 90W charging, daisy chaining, KVM and 2.5GbE Ethernet
- IPS Black panel with 2000:1 contrast, 98% DCI-P3 and factory calibration to Delta E < 2
- Ambient light sensor, 2 x 5W speakers and a 150 mm height-adjustable stand
Cons
- 110 ppi, less sharp than the 40-inch 5K2K U4025QW (140 ppi)
- HDMI input is limited to 100Hz
- No pivot, and no HDR certification
Closest rivals
Model | Size | Resolution | PPI | Panel | Refresh | Brightness | HDR | USB-C power | Released |
|---|---|---|---|---|---|---|---|---|---|
| 34″ | 3440 × 1440 | 110 | VA | 180 Hz | 300 nits | – | – | May 2024 | |
| 34″ | 3440 × 1440 | 110 | VA | 240 Hz | 400 nits | 400 | 98 W | May 2025 | |
| 34″ | 3440 × 1440 | 110 | VA | 240 Hz | 400 nits | 400 | – | Jul 2026 |
Sources
- dell.com/en-gb/shop/monitors/apd/dell-ultrasharp-34-curved-thunderbolt-hub-moni…
- dl.dell.com/content/manual84956632-dell-ultrasharp-34-curved-thunderbolt-hub-mo…
- eprel.ec.europa.eu/qr/1777749
- tftcentral.co.uk/news/dell-ultrasharp-u4025qw-with-40-5120-x-2160-ips-black-pan…
Photo: i.dell.com
- right-facing Dell UltraSharp 34 Curved Thunderbolt™ Hub Monitor - U3425WE: i.dell.com/is/image/DellContent/content/dam/ss2/product-images/dell-client-prod…
- rear-facing Dell UltraSharp 34 Curved Thunderbolt™ Hub Monitor - U3425WE: i.dell.com/is/image/DellContent/content/dam/ss2/product-images/dell-client-prod…
- underside Dell UltraSharp 34 Curved Thunderbolt™ Hub Monitor - U3425WE: i.dell.com/is/image/DellContent/content/dam/ss2/product-images/dell-client-prod…
- right-profile Dell UltraSharp 34 Curved Thunderbolt™ Hub Monitor - U3425WE: i.dell.com/is/image/DellContent/content/dam/ss2/product-images/dell-client-prod…
- left-profile Dell UltraSharp 34 Curved Thunderbolt™ Hub Monitor - U3425WE: i.dell.com/is/image/DellContent/content/dam/ss2/product-images/dell-client-prod…
- Dell UltraSharp U3425WE, underside quick-access ports and screen-edge close-up.: Dell official UltraSharp U3425WE product-page detail image; complete supplied framing and background retained.