Display
31.47 in, IPS, 6144 x 3456 pixels
31.47
Refresh Rate
60 Hz
Brightness
400 cd/m²
400 cd
Contrast Ratio
2000 : 1
2000
Overview
The Dell U3224KB is an 6144 x 3456 pixels IPS monitor rated for refresh rates up to 60 Hz. On the picture-quality side, it’s specified at 400 cd/m² typical brightness, 2000 : 1 contrast and 100% sRGB coverage. For hookups, there’s 1x HDMI 2.1, 1x DisplayPort 2.1, 7x USB-A.
BrandDellPanel TypeIPSResolution6144 x 3456 pixelsRefresh Rate60 Hz
Key Highlights
- Dell U3224KB hub | 7 USB-A downstream ports
- Dell U3224KB image | 400 cd/m² brightness and 2000 : 1 contrast
Who Should Buy the Dell U3224KB
+ Best For
Detail-critical work
224 PPI makes text and fine lines look printed
Video callers
the built-in 4K camera replaces a separate webcam
Two-machine desks
automatic KVM switches peripherals for you
Photo and design review
99% DCI-P3, 100% sRGB and DisplayHDR 600
× Not Ideal For
Gamers
60 Hz is the ceiling, with no variable refresh features
Budget desks
this is one of the most expensive monitors Dell makes
Modest GPUs
driving 6144 x 3456 needs real bandwidth and a capable card
Dark-room film
2000:1 IPS contrast cannot match OLED
Display Performance
Refresh Rate
60 Hz
Standard refresh range
Brightness
400 cd/m²
Typical brightness as specified; peak figure not published
Contrast
2000 : 1
Standard panel black depth
Colour Gamut
100% sRGB
Standard game and web colour
HDR
DisplayHDR 600
Peak brightness and local dimming not separately published
Gaming Performance
Refresh Rate60 HzMatch frame rate to the monitor’s useful range
GPU Requirement6144 x 3456 pixels up to 60 HzEntry-to-mid-range GPU is generally sufficient
HDR & Brightness Reality
DisplayHDR 600 is a real certification and this panel meets it honestly - 400 cd/m2 for normal work rising to a 600 cd/m2 peak, so HDR content does visibly brighten. What it lacks is the black floor: 2000:1 contrast with a W-LED backlight means dark scenes stay grey next to an OLED, and no local dimming zone count is published. For reviewing HDR footage on a workstation this is perfectly serviceable; for grading it or watching films in the dark, it is not the tool.
Connectivity & Ports
HDMI1x HDMI 2.1Published port count and version
DisplayPort1x DisplayPort 2.1Primary high-refresh PC connection
USB-CYesSupports USB-C input
USB Hub7x USB-A downstreamPeripherals can run through the screen
Audio OutNot listedCheck before buying if you need audio from the monitor
Desk Fit & Ergonomics
Size / Footprint713.7 × 498 × 231 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 Adjust160 mm (6.30 in)Supports eye-level positioning
Swivel / Pivot±30 ° / ±90 °Supports shared angles and portrait rotation
Real-World Use Cases
224 PPI makes small text and fine lines look printed rather than rendered
the built-in 4K camera and 28 W speakers replace separate hardware
automatic KVM moves keyboard and mouse between systems
+/-90 degree pivot with 160 mm of height adjustment
Pros & Cons
Pros
- Built-in USB hub adds convenient peripheral connectivity
- Stand offers 160 mm (6.30 in) height adjustment, swivel, pivot
- 100% sRGB coverage is published for the panel
Cons
- 60 Hz only, with no variable refresh
- 6144 x 3456 needs serious GPU bandwidth
- 2000:1 contrast is modest for film
- Premium price for what is strictly a work tool
Score & Ratings
8.8/10
Great
Model Information
8
| Specification | Value |
|---|---|
| Brand | Dell |
| Series | UltraSharp |
| Model | U3224KB |
| Model Alias | UltraSharp U3224KB |
| Full Product Name | Dell U3224KB |
| Model Year | 2023 |
| Available Colors | Black and Silver |
| Warranty | 3-Year Advanced Exchange Service and Premium Panel Exchange |
Display & Panel
10
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 31.47 in | |
| Exact Diagonal | 799.39 mm (31.47 in) | |
| Aspect Ratio | 16:9 | |
| Active Display Width | 696.73 mm (27.43 in) | |
| Active Display Height | 391.91 mm (15.43 in) | |
| Screen-to-Body Ratio | 80.55% | |
| Panel Type | IPS | IPS 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 | 6144 x 3456 pixels | |
| Pixel Density | 224 ppi | 224 ppi indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.113 mm (0.00 in) |
Picture Quality & Color
10
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 10 bits | |
| FRC | No | |
| Display Colors | 1073.7 million colors (30 bits) | |
| Typical Brightness | 400 cd/m² | |
| Static Contrast Ratio | 2000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| HDR Support | Yes | |
| sRGB Coverage | 100% | 100% indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
| DCI-P3 Coverage | 99% |
Refresh Rate, Response & Gaming
1
| Specification | Value |
|---|---|
| Refresh Rate Range | 60 Hz |
Ports & Connectivity
10
| Specification | Value |
|---|---|
| HDMI Ports | 1 |
| HDMI Version | 2.1 |
| DisplayPort Input | 1 |
| DisplayPort Version | 2.1 |
| USB-C Video Input | 1× USB-C |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| HDCP Version | 2.2 |
| USB-C Input | Yes |
| USB-A Ports | 7 |
Audio, Camera, Network & Smart Features
11
| Specification | Value |
|---|---|
| Built-In Speakers | Yes |
| Speaker Configuration | 2 x 14 W |
| Total Speaker Output | 28 W |
| Built-In Camera | Yes |
| Camera Resolution | 3840 × 2160 |
| Camera Image Resolution | 3840 x 2160 pixels |
| Camera Video Resolution | 3840 x 2160 pixels |
| Camera Field of View | 0° |
| Auto Framing | Yes |
| Ethernet | Yes |
| LAN | Yes |
Ergonomics & Stand
14
| Specification | Value | What It Means |
|---|---|---|
| VESA Mount | Yes | |
| VESA Size | 100 x 100 mm | |
| Removable Stand | Yes | |
| Height Adjustment | Yes | 160 mm (6.30 in) of travel allows the screen to be raised or lowered for a comfortable eye-level position. |
| Height Adjustment Range | 160 mm (6.30 in) | |
| Tilt Adjustment | Yes | |
| Forward Tilt | 5 ° | |
| Backward Tilt | 21 ° | |
| Swivel Adjustment | Yes | |
| Left Swivel | 30 ° | |
| Right Swivel | 30 ° | |
| Pivot Adjustment | Yes | |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° |
Dimensions, Weight & Design
6
| Specification | Value |
|---|---|
| Dimensions With Stand | 713.7 × 498 × 231 mm |
| Dimensions Without Stand | 713.7 × 475 × 58.4 mm |
| Weight With Stand | 11.9 kg (26.24 lbs) |
| Weight Without Stand | 7.26 kg (16.01 lbs) |
| Stand Depth | 231 mm (9.09 in) |
| Security Lock Slot | Yes |
Power & Operating Conditions
15
| 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 | 1.5 A |
| Average Power Consumption | 29.9 W |
| Maximum Power Consumption | 240 W |
| Sleep Consumption | 0.3 W |
| Off Consumption | 0.3 W |
| 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 | 5% - 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 | Easy Arrange; KVM Switch (auto); Nano IPS Black; Picture-by-Picture; Picture-in-Picture |
Certifications, Standards & Licenses
7
| Specification | Value |
|---|---|
| Energy Star | Yes |
| EPEAT | EPEAT Gold |
| TCO Certified | TCO Certified Edge |
| TCO Certified Edge | TCO Certified Edge |
| VESA DisplayHDR | DisplayHDR 600 |
| RoHS | Yes |
| FCC | Yes |
Included Accessories
3
| Specification | Value |
|---|---|
| DisplayPort Cable | Yes |
| USB Type-C Cable | Yes |
| USB Type-A to Type-B Cable | Yes |
Frequently Asked Questions
01 What does 6K actually give me over 4K? +
Density. 6144 x 3456 across 31.47 inches is 224 PPI, against roughly 140 PPI for a 4K panel that size. Text stops looking rendered and starts looking printed. If you stare at type or fine detail all day, that is the whole argument.
02 Is the built-in camera any good? +
It is a 4K sensor with dual-gain HDR and multi-element optics, which is well beyond a typical laptop webcam. For a monitor, having that built in rather than clipped on top is a genuine convenience.
03 Can it game at 60 Hz? +
Technically, but nobody should buy it for that. There is no variable refresh, and rendering games at 6144 x 3456 is impractical for any current GPU. It is a workstation display.
04 What is Auto KVM here? +
Connect two machines and one set of peripherals, and the monitor switches keyboard and mouse automatically to whichever input you are using. With five USB-A ports and USB-C downstream, it is effectively a full docking station.
05 Do the speakers replace desk speakers? +
For calls and video, comfortably - 2 x 14 W is 28 W, far beyond typical monitor audio. For music you care about, desk speakers still win.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № U3224KB