Display
34 in, VA, 3440 x 1440 pixels
34
Refresh Rate
48 Hz - 100 Hz
48 Hz
Brightness
350 cd/m²
350 cd
Contrast Ratio
3000 : 1
3000
Overview
The Dell S3423DWC is a 3440 x 1440 pixels VA monitor rated for a 48 Hz - 100 Hz refresh range. On the response-time front, it’s specified at 4 ms GtG. Tearing is addressed through FreeSync. On the picture-quality side, it’s specified at 350 cd/m² typical brightness, 3000 : 1 contrast and 99% sRGB coverage. For hookups, there’s 2x HDMI 2.0, 2x USB-A, 1x USB-B upstream. Independent research on this model adds one useful note: Curved USB-C monitor with built-in speakers.
BrandDellPanel TypeVAResolution3440 x 1440 pixelsRefresh Rate48 Hz - 100 Hz
Key Highlights
- Dell S3423DWC speed | 48 Hz - 100 Hz refresh with 4 ms GtG response
- Dell S3423DWC sync | FreeSync
- Dell S3423DWC hub | 1 USB-B upstream and 2 USB-A downstream ports
- Dell S3423DWC image | 350 cd/m² brightness and 3000 : 1 contrast
Who Should Buy the Dell S3423DWC
+ Best For
USB-C office users
one cable carries display, data and 65 W power
Wide productivity
3440 x 1440 supports multiple windows and timelines
Two-computer desks
KVM, Picture-by-Picture and Picture-in-Picture are listed
Speaker-light setups
10 W output covers calls and everyday media
× Not Ideal For
High-refresh gaming
100 Hz is smoother than 60 Hz but not esports-level
HDR work
no HDR format or peak brightness is listed
Wide-gamut editing
only 99% sRGB is published
Frequent repositioning
the stand has no swivel or pivot
Display Performance
Refresh Rate
48 Hz - 100 Hz
Standard refresh range
Response Time
4 ms GtG
Manufacturer-published transition time
Brightness
350 cd/m²
Typical brightness as specified; peak figure not published
Contrast
3000 : 1
Strong VA dark-scene contrast
Colour Gamut
99% sRGB
Standard game and web colour
Gaming Performance
Refresh Rate48 Hz - 100 HzMatch frame rate to the monitor’s useful range
Response Time4 ms (GtG)Published claim without independent testing
VRR / Adaptive SyncFreeSyncHelps reduce tearing on compatible GPUs
GPU Requirement3440 x 1440 pixels up to 100 HzEntry-to-mid-range GPU is generally sufficient
HDR & Brightness Reality
The S3423DWC does not list HDR support, peak brightness or local dimming. Its 350 cd/m² typical output and 3000:1 VA contrast make it a capable SDR ultrawide, especially for dark office themes and general media. The 8-bit colour depth also reinforces its productivity focus. Choose it for the wide workspace, USB-C and KVM features rather than for HDR playback or grading.
Connectivity & Ports
HDMI2x HDMI 2.0Published port count and version
DisplayPortNot publishedCheck before buying
USB-CYesSupports USB-C input
USB Hub1x USB-B upstream / 2x USB-A downstreamPeripherals can run through the screen
Audio Out3.5 mm audio outExternal audio may still be preferred
Desk Fit & Ergonomics
Size / Footprint808.16 × 389.36 × 217.05 mmCheck desk width and depth before purchase
StandRemovable: YesA separate arm can replace the supplied base
VESA Mount100 x 100 mmUse a matching arm or wall mount
Tilt-5 ° to +21 °Covers the published forward and backward range
Height Adjust100 mm (3.94 in)Supports eye-level positioning
Swivel / PivotNo swivel; No pivotMovement is limited by the supplied stand
Real-World Use Cases
3440 x 1440 fits multiple documents and long timelines
65 W power reduces cable clutter
KVM and split-screen modes help source switching
10 W built-in audio avoids separate speakers
Pros & Cons
Pros
- 48 Hz 100 Hz refresh range with 4 ms GtG response supports fast-paced use
- FreeSync give broad adaptive-sync compatibility
- Built-in USB hub adds convenient peripheral connectivity
- Stand offers 100 mm (3.94 in) height adjustment
- 99% sRGB coverage is published for the panel
Cons
- Only 100 Hz
- No HDR support
- No swivel or pivot
- 8-bit colour
Score & Ratings
7.6/10
Great
Model Information
5
| Specification | Value |
|---|---|
| Brand | Dell |
| Model | S3423DWC |
| Full Product Name | Dell S3423DWC |
| Model Year | 2022 |
| Available Colors | Black |
Display & Panel
11
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 34 in | |
| Exact Diagonal | 864.25 mm (34.03 in) | |
| Radius of Curvature | 1800R | |
| Aspect Ratio | 2.389:1 | |
| Active Display Width | 797.22 mm (31.39 in) | |
| Active Display Height | 333.7 mm (13.14 in) | |
| Screen-to-Body Ratio | 90.31% | |
| Panel Type | VA | VA affects viewing angles, black depth and color consistency — each panel technology trades these off differently. |
| Backlight Type | W-LED | |
| 3D Support | No | |
| Screen Coating | Anti-glare/Matte (3H) |
Resolution & Pixel Details
3
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 3440 x 1440 pixels | |
| Pixel Density | 109 ppi | 109 ppi indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.232 mm (0.01 in) |
Picture Quality & Color
7
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 8 bits | |
| Display Colors | 16.8 million colors (24 bits) | |
| Typical Brightness | 350 cd/m² | |
| Static Contrast Ratio | 3000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| sRGB Coverage | 99% | 99% indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
Refresh Rate, Response & Gaming
3
| Specification | Value |
|---|---|
| Refresh Rate Range | 48 Hz - 100 Hz |
| Minimum Response Time | 4 ms |
| AMD FreeSync | Yes |
Ports & Connectivity
11
| Specification | Value |
|---|---|
| HDMI Ports | 2 |
| HDMI Version | 2.0 |
| USB-C Video Input | 1× USB-C |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| HDCP Version | 2.2 |
| USB-C Input | Yes |
| USB-C Power Delivery | 65 W |
| USB-A Ports | 2 |
| USB-B Upstream | 1 |
| Audio Output | Yes |
Audio, Camera, Network & Smart Features
4
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2 x 5 W |
| Total Speaker Output | 10 W |
| Built-In Camera | No |
Ergonomics & Stand
10
| Specification | Value | What It Means |
|---|---|---|
| VESA Mount | Yes | |
| VESA Size | 100 x 100 mm | |
| Removable Stand | Yes | |
| Height Adjustment | Yes | 100 mm (3.94 in) of travel allows the screen to be raised or lowered for a comfortable eye-level position. |
| Height Adjustment Range | 100 mm (3.94 in) | |
| Tilt Adjustment | Yes | |
| Forward Tilt | 5 ° | |
| Backward Tilt | 21 ° | |
| Swivel Adjustment | No | |
| Pivot Adjustment | No |
Dimensions, Weight & Design
7
| Specification | Value |
|---|---|
| Dimensions With Stand | 808.16 × 389.36 × 217.05 mm |
| Dimensions Without Stand | 808.16 × 364.5 × 64.03 mm |
| Weight With Stand | 10.53 kg (23.21 lbs) |
| Weight Without Stand | 6.65 kg (14.66 lbs) |
| Stand Width | 302 mm (11.89 in) |
| Stand Depth | 217.05 mm (8.55 in) |
| Security Lock Slot | Yes |
Power & Operating Conditions
16
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Electric Current | 3 A |
| Average Power Consumption | 31 W |
| Maximum Power Consumption | 160 W |
| Sleep Consumption | 0.4 W |
| Off Consumption | 0.3 W |
| Annual Energy Consumption | 100.96 kWh |
| Operating Temperature | 0 °C - 40 °C (32 °F - 104 °F) |
| Operating Humidity | 10% - 80% |
| Operating Altitude | 5000 m |
| Storage Temperature | -20 °C - 60 °C (-4 °F - 140 °F) |
| Storage Humidity | 10% - 90% |
| Storage Altitude | 12192 m |
Eye Care, Protection & Additional Features
4
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| ComfortView Plus | Yes |
| Additional Monitor Features | Dell Easy Arrange; KVM Switch; Picture-by-Picture; Picture-in-Picture; PowerNap; Vents on the rear panel for improved heat dissipation |
Certifications, Standards & Licenses
1
| Specification | Value |
|---|---|
| RoHS | Yes |
Included Accessories
1
| Specification | Value |
|---|---|
| USB Type-C Cable | Yes |
Frequently Asked Questions
01 How much wider is the Dell S3423DWC workspace than a 16:9 monitor? +
Its 3440 x 1440 resolution adds substantial horizontal room while keeping 1440 vertical pixels. That suits side-by-side documents and editing timelines.
02 What can the S3423DWC’s 65 W USB-C connection handle? +
It can carry video, USB data and power for many office laptops. High-performance notebooks may still need their own charger.
03 Why is the 100 Hz refresh useful on this Dell ultrawide? +
It makes scrolling and general motion smoother than 60 Hz and supports light gaming. It is not intended to match 165–240 Hz gaming displays.
04 How restrictive is the S3423DWC stand? +
It offers 100 mm height adjustment and tilt but no swivel or pivot. The wide panel may therefore need careful desk placement or a VESA arm.
05 What keeps the S3423DWC out of colour-critical HDR work? +
It lists 8-bit colour, 99% sRGB and no HDR support or peak brightness. Its specification favours productive connectivity rather than professional colour range.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № S3423DWC