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A 34 inch curved monitor with narrow bezels and a height adjustable stand

DELL

DELL S3425DW 34" UW-QHD 120Hz USB-C Monitor

SKU CH-R82A-5PXH0

A 34-inch curved ultrawide monitor with UW-QHD resolution, 120Hz refresh rate, VA panel covering 99% sRGB and 95% DCI-P3, 65W USB-C power delivery, built-in 10W speakers, and ergonomic height.

  • Screen size34

Configuration 34" / QHD' / 120Hz / VA

  • 34" 21:9 UW-QHD 3440×1440 expands multitasking space
  • 120Hz refresh with 3ms GTG and AMD FreeSync Premium removes tearing
  • VA panel covers 95% DCI-P3 and 99% sRGB for true-to-life colour
  • USB-C 65W power delivery plus HDMI 2.1 simplifies desk cabling
  • Height, tilt 5°–21° and slant 4°/4° adjust for ergonomic comfort

34-Inch Ultrawide USB-C Monitor

The DELL S3425DW is a 34-inch curved display with a 21:9 aspect ratio and UW-QHD 3440×1440 resolution. It targets professionals who need expansive multitasking space and gamers who want immersive visuals. The VA panel covers 99% sRGB and 95% DCI-P3 with 1.07 billion colors for accurate colour work. A 120Hz refresh rate and AMD FreeSync Premium support deliver smooth motion for both productivity and play.

Check USB-C Power and Video Support

Verify that your laptop or desktop USB-C port supports DisplayPort Alternate Mode and can deliver up to 65W of power for charging. The monitor provides 65W Power Delivery over USB-C alongside video and data. Confirm your graphics output can drive 3440×1440 at 120Hz over HDMI 2.1 or USB-C. Ensure your operating system supports the 21:9 aspect ratio for correct scaling.

Built-In Audio and Ergonomic Stand

Dual 5W speakers (10W total) provide sound without external speakers, saving desk space and reducing cable clutter. The stand adjusts for height, tilt from 5° to 21°, and slant of 4° left and right for comfortable viewing. Narrow 0.33-inch side bezels minimise gaps in multi-monitor arrangements. A USB-C downstream port and USB-A ports on the monitor act as a hub for peripherals.

How it compares

Measured against everything we stock in Desktop PC Monitors, at today’s prices. Recalculated every night.

Price $334.99
Pricier than about 73% of the 530 comparable items (median $193.49).

Specifications

Display
Screen size34

Other versions of this model

2 more in the same range

Questions about this item

Does the Dell S3425DW include the USB-C cable needed for 65W power delivery, or must I buy one separately?

The monitor ships with a USB-C cable that supports up to 65W power delivery, so no separate cable is required for charging a compatible laptop.

Should I choose this 34" UW-QHD 120Hz model or a smaller 1080p ultrawide for coding and media?

The 3440×1440 resolution on a 34" 21:9 panel gives roughly 2.3× the pixel count of 1080p ultrawide, fitting far more code lines and showing media at native 1440p without scaling.

What does the 120Hz refresh rate actually deliver when I connect a laptop over USB-C?

Over the USB-C upstream port the monitor runs at its full 120Hz with AMD FreeSync Premium and 1ms response time, provided the laptop's GPU supports that rate at 3440×1440.

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