Overview
The Dell S3425DW is a 34-inch curved WQHD monitor designed for wide-screen productivity, multimedia, and general desktop use. It combines a 3440 × 1440 resolution, 21:9 aspect ratio, 120Hz refresh rate, VA panel technology, and 1800R curvature.
Display Performance
The VA panel provides a 3,000:1 native contrast ratio, 300 cd/m² brightness, 1.07 billion colors, and 178-degree horizontal and vertical viewing angles. Color coverage is rated at 99% sRGB and 95% DCI-P3. Response time is rated at 5ms GTG, 3ms in Fast mode, and 1ms in Extreme mode.
Connectivity
The S3425DW provides two HDMI 2.1 inputs supporting WQHD at up to 120Hz, HDR, VRR, and 10-bit operation. Its USB-C upstream port supports DisplayPort 1.4 Alt Mode and up to 65W Power Delivery, allowing compatible laptops to receive power and display connectivity through a single cable.
USB Hub
The integrated USB hub includes two USB 5Gbps Type-A downstream ports and one USB-C 5Gbps downstream port. The USB-C downstream port supports up to 15W Power Delivery, while one USB-A port supports Battery Charging 1.2.
Adaptive Sync and HDR
AMD FreeSync Premium provides variable refresh operation, while HDR10 support is available for compatible content. The monitor supports refresh rates from 48Hz to 120Hz.
Audio
Two integrated speakers provide 5W output per speaker. The built-in 10W speaker system provides audio without requiring separate desktop speakers for standard multimedia use.
Ergonomics and Mounting
The included adjustable stand supports height, tilt, and slant adjustment. Height adjustment is up to 5.12 inches, with tilt from -5° to 21° and slant adjustment of -4°/+4°. The display supports a 100 × 100 mm VESA mounting pattern.
Eye Comfort
The monitor includes Dell ComfortView Plus and Eye Comfort Technology, along with an anti-glare surface. Dell specifies a TÜV Rheinland 4-star eye comfort certification for the display.
Key Features
- 34-inch curved VA display with 3440 × 1440 WQHD resolution
- 120Hz refresh rate with AMD FreeSync Premium
- USB-C DisplayPort Alt Mode with up to 65W Power Delivery
- Two HDMI 2.1 inputs with HDR and variable refresh support
- Integrated 2 × 5W speakers and USB hub
Applications
The S3425DW is suited to wide-screen office productivity, multitasking, desktop computing, multimedia, and systems where USB-C connectivity and laptop power delivery are useful.
DC Supplies Product Note
The S3425DW combines a 21:9 curved display with USB-C connectivity and 65W Power Delivery, making the exact model useful to specify when replacing or standardizing wide-screen USB-C monitors.
Specifications
| Specification | Details |
|---|
| Brand | Dell |
| Part Number / MPN | S3425DW |
| Product Type | LED Monitor |
| Product Line | Plus |
| Screen Size | 34 inches |
| Panel Technology | Vertical Alignment (VA) |
| Screen Mode | WQHD |
| Resolution | 3440 × 1440 |
| Aspect Ratio | 21:9 |
| Screen Curvature | 1800R |
| Refresh Rate | 120Hz |
| Pixel Pitch | 0.23175 × 0.23175 mm |
| Pixel Density | 109 PPI |
| Brightness | 300 cd/m² |
| Contrast Ratio | 3,000:1 |
| Color Support | 1.07 billion colors |
| Color Gamut | 99% sRGB, 95% DCI-P3 |
| Response Time | 5ms GTG; 3ms Fast; 1ms Extreme |
| Viewing Angle | 178° horizontal / 178° vertical |
| HDR | HDR10 |
| Adaptive Sync | AMD FreeSync Premium |
| HDMI | 2 × HDMI 2.1 |
| USB-C Upstream | 1 × USB 5Gbps, DisplayPort 1.4 Alt Mode |
| USB-C Power Delivery | Up to 65W |
| USB-C Downstream | 1 × USB 5Gbps, up to 15W Power Delivery |
| USB-A Downstream | 2 × USB 5Gbps; one supports Battery Charging 1.2 |
| Speakers | 2 × 5W |
| VESA Mount | 100 × 100 mm |
| Stand Adjustment | Height, tilt, slant |
| Maximum Height Adjustment | 5.12 inches |
| Power Input | 100–240V AC, 50/60Hz |
| Operating Power Consumption | 31W |
| Maximum Power Consumption | 175W |
| Operating Temperature | 0°C to 40°C |
| Operating Humidity | 10% to 80%, non-condensing |
| Color | Ash White |
| Energy Certification | ENERGY STAR 8.0 |
| Dimensions | L 31.78 × W 8.73 × H 16.20–20.36 inches with stand |
| Weight | 20.68 lbs with stand and cables |
FAQs
What resolution does the Dell S3425DW support?
The S3425DW supports 3440 × 1440 WQHD resolution at refresh rates up to 120Hz.
What type of panel does the S3425DW use?
It uses a Vertical Alignment (VA) panel with a 3,000:1 native contrast ratio and 1800R curvature.
Does the S3425DW support USB-C Power Delivery?
Yes. Its USB-C upstream connection supports DisplayPort 1.4 Alt Mode and up to 65W Power Delivery for compatible devices.
How many HDMI ports does the S3425DW have?
The monitor has two HDMI 2.1 ports supporting WQHD resolution at up to 120Hz, along with HDR and variable refresh capabilities.
Does the S3425DW have built-in speakers?
Yes. It has two integrated 5W speakers for a total rated output of 10W.
Does the S3425DW support VESA mounting?
Yes. The monitor supports a 100 × 100 mm VESA mounting pattern.
