Measure desk viewing space
Measure desk depth, viewing distance and arm clearance.
Expert reviews. One COR Score.
DELL P2421DC reviews
Brand: DELL More DELL monitors reviews →
tbd
Compare DELL P2421DC reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer codeDELL-P2421DC
The product, explained
About the DELL P2421DC
DELL DELL-P2421DC is listed in the computer monitors category. The recorded specifications include display diagonal: 60.5 cm (23.8"); display resolution: 2560 x 1440 pixels; panel type: IPS; maximum refresh rate: 60 Hz. This entry covers manufacturer code DELL-P2421DC. Specifications relate to this exact source record; other editions or packages may differ.
The 60.5 cm (23.8") display is specified at 2560 x 1440 pixels. Consider these together: a larger screen provides more physical space, while resolution determines the number of pixels available. Neither specification establishes brightness, colour accuracy or motion quality.
The listed maximum refresh rate is 60 Hz. To use it, the source device, cable, resolution and input must all support the intended mode. Refresh rate is separate from response time and input lag.
- Screen size
- 60.5 cm (23.8")
- Screen resolution
- 2560 x 1440 pixels
- Panel type
- IPS
- Maximum refresh rate
- 60 Hz
- Response time
- 8 ms
- Display brightness (typical)
- 300 cd/m²
Make it work for you
Before choosing the DELL P2421DC
Check the display chain
Check computer output, monitor input, cable and dock as one chain.
Choose adjustable support
Choose a stand or arm with the adjustment you actually need.
Read independent display tests
Use independent tests for brightness, uniformity, text and motion.
Independent perspectives
Expert reviews 0
Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.
No scored critic reviews have been imported for this exact product yet. It remains unrated.
Independent reviews, made comparable
What does the COR Score mean?
One consistent scale makes different publishers’ ratings easier to compare. The original review still tells you why a critic reached that verdict.
Read our scoring methodology →Scale conversion · example
8/ 104.00/ 5
An illustration of conversion, not this product’s rating.
Check the match
Identify the exact model and the version reviewed. Check the manufacturer code, configuration and supplied accessories.
Compare on one scale
Convert usable ratings to five points, count each publisher once and give each critic equal weight.
Require three critics
Show the average to two decimal places after three distinct critics. Otherwise display tbd, keeping individual reviews visible.
Find the best fit by considering the score alongside the critic count, review dates, tested version and the strengths that matter to you. Eligible model-level reviews identify the tested configuration. Reviews of different hardware are shown separately and do not enter this product’s COR Score.
Know exactly what you’re buying
DELL P2421DC specifications
Manufacturer code: DELL-P2421DC · Icecat product 78360941 · Checked 18 Sep 2026. Specifications belong to this exact model.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Screen size | 60.5 cm (23.8") |
|---|---|
| Screen resolution | 2560 x 1440 pixels |
| Panel type | IPS |
| Maximum refresh rate | 60 Hz |
| Response time | 8 ms |
| Display brightness (typical) | 300 cd/m² |
| HDMI ports | 1 |
| DisplayPort connections | 2 |
More product specifications
Open a section for the details that matter to you.
Audio & listening3 details
| Built-in speakers | No |
|---|---|
| Audio input | No |
| Headphone out | No |
Display8 details
| Display technology | LCD |
|---|---|
| Touchscreen | No |
| Screen shape | Flat |
| Contrast ratio (typical) | 1000:1 |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Display number of colours | 16.78 million colours |
| Colour gamut standard | sRGB |
Processor, memory & storage3 details
| Supported graphics resolutions | 640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1600 x 1200 (UXGA), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 2048 x 1080, 2560 x 1440 |
|---|---|
| Storage temperature (T-T) | -20 - 60 °C |
| Storage relative humidity (H-H) | 10 - 90% |
Camera, image & video2 details
| Supported video modes | 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 1440p |
|---|---|
| Built-in camera | No |
Printing, scanning & paper2 details
| Horizontal scan range | 29 - 113 kHz |
|---|---|
| Vertical scan range | 49 - 75 Hz |
Connections & wireless10 details
| Built-in USB hub | Yes |
|---|---|
| USB hub version | 2.0 / 3.2 Gen 1 (3.1 Gen 1) |
| USB upstream port type | USB Type-C |
| Number of upstream ports | 1 |
| USB Type-A downstream ports quantity | 4 |
| DVI port | No |
| HDMI | Yes |
| HDMI version | 1.4 |
| DisplayPort version | 1.2 |
| Panel mounting interface | 100 x 100 mm |
Power & battery11 details
| Energy efficiency class (SDR) | E |
|---|---|
| Energy consumption (SDR) per 1000 hours | 19 kWh |
| Power consumption (typical) | 18.5 W |
| Power consumption (standby) | 0.3 W |
| Power consumption (max) | 127 W |
| Power consumption (off) | 0.2 W |
| Power consumption (PowerSave) | 17.7 W |
| AC input voltage | 120 - 230 V |
| AC input frequency | 50 - 60 Hz |
| Input current | 2.5 A |
| Energy efficiency scale | A to G |
Controls & features1 detail
| Operating temperature (T-T) | 0 - 40 °C |
|---|
Design & dimensions15 details
| Product colour | Black |
|---|---|
| VESA mounting | Yes |
| Height adjustment | Yes |
| Adjustable height (max) | 13 cm |
| Width (with stand) | 537.8 mm |
| Depth (with stand) | 166 mm |
| Height (with stand) | 486.1 mm |
| Weight (with stand) | 5.76 kg |
| Width (without stand) | 537.8 mm |
| Depth (without stand) | 42.7 mm |
| Height (without stand) | 322.1 mm |
| Weight (without stand) | 3.77 kg |
| Bezel width (side) | 5.5 mm |
| Bezel width (top) | 5.4 mm |
| Bezel width (bottom) | 2.03 cm |
Software & compatibility2 details
| Compliance certificates | RoHS |
|---|---|
| Certification | NFPA 99, DisplayPort 1.2, HDCP 1.2, Mercury-free |
Further product details26 details
| HD type | Quad HD |
|---|---|
| Native aspect ratio | 16:9 |
| Backlight type | LED |
| Response time (fast) | 5 ms |
| Pixel pitch | 0.2058 x 0.2058 mm |
| Pixel density | 123 ppi |
| Viewable size, horizontal | 52.7 cm |
| Viewable size, vertical | 29.6 cm |
| sRGB coverage (typical) | 99% |
| 3D | No |
| NVIDIA G-SYNC | No |
| AMD FreeSync | No |
| Market positioning | Business |
| HDCP | Yes |
| Cable lock slot | Yes |
| Pivot | Yes |
| Pivot angle | -90 - 90° |
| Swivelling | Yes |
| Swivel angle range | -45 - 45° |
| Tilt adjustment | Yes |
| Tilt angle range | -5 - 21° |
| Operating relative humidity (H-H) | 10 - 80% |
| Stand included | Yes |
| Sustainability certificates | ENERGY STAR |
| Doesn't contain | BRF, PVC |
| TV tuner integrated | No |
Packaging & supplied accessories6 details
| Package width | 165.1 mm |
|---|---|
| Package depth | 618 mm |
| Package height | 393.9 mm |
| Package weight | 7.69 kg |
| Cables included | DisplayPort, USB Type-C |
| Harmonized System (HS) code | 85285210 |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
Build your shortlist
Compare other monitors
More products in this category. Compare their exact features, original reviews and available offers alongside the DELL P2421DC.
| Product | Brand | Shown model | COR Score |
|---|---|---|---|
| DELL S2330MX reviews → | DELL | 859-1013758.4 cm (23") · Black | tbd0 critic reviews · Available after 3 |
| DELL U2312HM reviews → | DELL | 859-1015258.4 cm (23") · Silver | tbd0 critic reviews · Available after 3 |
| Samsung S27A850D reviews → | Samsung | S27A850D68.6 cm (27") · Black | 4.50/53 critic reviews |
| Acer 193WLAOb reviews → | Acer | ET.CV3WE.A1348.3 cm (19") · Black | tbd0 critic reviews · Available after 3 |
Your questions, answered
DELL P2421DC FAQs
How many expert reviews are available for DELL P2421DC?
No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.
What is the COR Score for DELL P2421DC?
The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.
Which exact version does this page cover?
This page identifies DELL P2421DC using manufacturer code DELL-P2421DC. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.
What is the listed display diagonal for DELL P2421DC?
The source specification records display diagonal as 60.5 cm (23.8"). This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
What is the listed display resolution for DELL P2421DC?
The source specification records display resolution as 2560 x 1440 pixels. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
Where can I compare prices for DELL P2421DC?
Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.
Does a higher refresh rate make every app better?
It can make movement feel smoother, but benefits depend on the computer, connection and the activity.
Can I use a USB-C monitor with any laptop?
Not necessarily. Check the laptop port supports the required display mode and charging level.
Is a curved monitor always more immersive?
It depends on size, desk distance and use. Try it for text and multi-window work, not only video.
How should I use the specifications alongside reviews?
Use the recorded features to check compatibility and make a shortlist. Read the original reviews for measured performance, everyday use and the tested configuration.
Understand your options
Monitor buying guides
Explore one topic in depth before making your shortlist.
Start with the complete buying guide →Monitor resolution and size: finding a comfortable matchResolution counts pixels; screen size determines how densely they are packed. The same resolution can look spacious on one diagonal and coarse on another, so compare the combination rather than either number alone.Monitor refresh rates: 60Hz, 120Hz, 144Hz and beyondChoose refresh rate from actual frame rate, motion needs, connection limits and image-quality priorities.IPS, VA and OLED monitors: choosing a panel typeChoose panel behaviour around text, contrast, motion, viewing position and static desktop use.USB-C monitors as laptop docksCheck charging power, video mode, hub bandwidth, network and downstream ports as one system.