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Dell UltraSharp 34 Curved Thunderbolt Hub Monitor (U3425WE) review

Dell's 34-inch 3440 x 1440 IPS Black ultrawide for offices, with a 120Hz panel and a Thunderbolt 4 hub.

By the Comredix review desk · Updated November 14, 2026

Quality (40%)
9.0
Experience (25%)
9.3
Value (35%)
8.2

Dell UltraSharp U3425WE is the ultrawide to buy if the monitor also has to be your laptop dock. Dell lists a 34.1-inch IPS Black panel at 3440 x 1440 and 120Hz, with a 2,000:1 native contrast ratio and a 1900R curve. Color coverage is 98% DCI-P3 and 100% of sRGB and Adobe RGB, and Dell ships a factory calibration report. The hub is the reason to pay more than for a gaming ultrawide: a Thunderbolt 4 upstream port charges a laptop at up to 90W, a downstream Thunderbolt 4 port daisy chains a second screen, and the monitor adds 2.5GbE Ethernet, a KVM switch and USB ports at 10Gbps. Internal Multi-Stream Transport can treat the panel as two 1720 x 1440 monitors from one cable. Two 5W speakers and an ambient light sensor are built in. The panel tops out at 300 nits and has no HDR badge. Dell.com listed it at $984.99 when we checked. We compared documented features and published prices only.

Who it is for

laptop users who want a single-cable ultrawide desk

Price

$984.99 at Dell.com (estimated value $1,049.99).

Dell Price $984.99 Add to Cart
Quoted from the vendor pricing page on November 14, 2026.

Key features

  • 34.1-inch IPS Black panel at 3440 x 1440 and 120Hz with a 2,000:1 native contrast ratio
  • Thunderbolt 4 upstream port with Power Delivery up to 90W and a Thunderbolt 4 downstream port for daisy chaining
  • 2.5GbE RJ45 Ethernet, a built-in KVM switch and USB ports at 10Gbps
  • 98% DCI-P3, 100% sRGB and 100% Adobe RGB color coverage
  • Two 5W speakers and an ambient light sensor

Strengths and weaknesses

  • Strength: Replaces a laptop dock with Ethernet, KVM and 90W charging over one cable
  • Strength: 3 year limited warranty with Advanced Exchange Service and Premium Panel Exchange
  • Strength: Internal Multi-Stream Transport splits the screen into two 1720 x 1440 displays without extra software
  • Weakness: $984.99 is more than twice the price of the Dell S3425DW
  • Weakness: 300 nits brightness and no HDR certification listed
  • Weakness: No webcam, according to Dell's spec sheet

Key facts

  • Price checked: $984.99
  • Size and resolution: 34.1 inch, 3440 x 1440 at 120Hz
  • Panel: IPS Black, 2,000:1 contrast, 1900R curve
  • Laptop charging: Up to 90W over Thunderbolt 4
  • Warranty: 3 years limited

Where it ranks

Dell UltraSharp 34 Curved Thunderbolt Hub Monitor (U3425WE) is No. 2 in our Best Ultrawide Monitors verdict.

Alternatives we scored

Visit dell.com · Questions or corrections: editorial@comredix.com