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BenQ PD3420Q reviews
Brand: BenQ More BenQ monitors reviews →
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Compare BenQ PD3420Q reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer code9H.LJHLB.QBE
The product, explained
About the BenQ PD3420Q
BenQ 9H.LJHLB.QBE is listed in the computer monitors category. The recorded specifications include display diagonal: 86.4 cm (34"); display resolution: 3440 x 1440 pixels; panel type: IPS; maximum refresh rate: 60 Hz. This entry covers manufacturer code 9H.LJHLB.QBE. Specifications relate to this exact source record; other editions or packages may differ.
The 86.4 cm (34") display is specified at 3440 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
- 86.4 cm (34")
- Screen resolution
- 3440 x 1440 pixels
- Panel type
- IPS
- Maximum refresh rate
- 60 Hz
- Response time
- 5 ms
- Display brightness (typical)
- 400 cd/m²
Make it work for you
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Independent perspectives
Expert reviews 2
Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.
TechRadar
4.00 / 5Original rating: 4 / 5
Review covers BenQ PD3420Q. The product-data source links this original review and public model name to code 9H.LJHLB.QBE. This link does not establish the reviewer’s tested colour or included accessories.
Read the full review ↗Checked 26 Sep 2026
PCWorld
3.50 / 5Original rating: 3.5 / 5
Review covers BenQ PD3420Q. The verified product-data labels bind this public model name to code 9H.LJHLB.QBE, and the original publisher article independently supplies the editorial score. This is not proof that the supplier supplied this review URL, or that the reviewer tested this colour or included accessories.
Read the full review ↗Checked 30 Sep 2026
More expert reviews
CGMagazine
BenQ PD3420Q Monitor Review
By Brendan Frye. Read the publisher’s assessment of this model.
Read the full review ↗Review link · Not included in the COR Score
connect living
Benq DesignVue PD3420Q im Test
By Manuel Masiero. Read the publisher’s assessment of this model.
Read the full review ↗Review link · Not included in the COR Score
Digital Camera World
BenQ PD3420Q monitor review
By Ben Andrews. Read the publisher’s assessment of this model.
Read the full review ↗Review link · Not included in the COR Score
Independent reviews, made comparable
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Read our scoring methodology →Scale conversion · example
8/ 104.00/ 5
An illustration of conversion, not this product’s rating.
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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
BenQ PD3420Q specifications
Manufacturer code: 9H.LJHLB.QBE · Icecat product 77816609 · Checked 16 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 | 86.4 cm (34") |
|---|---|
| Screen resolution | 3440 x 1440 pixels |
| Panel type | IPS |
| Maximum refresh rate | 60 Hz |
| Response time | 5 ms |
| Display brightness (typical) | 400 cd/m² |
| High Dynamic Range (HDR) supported | No |
| HDMI ports | 2 |
| DisplayPort connections | 1 |
More product specifications
Open a section for the details that matter to you.
Audio & listening6 details
| Number of speakers | 2 |
|---|---|
| Rated audio power (RMS) | 5 W |
| Built-in speakers | Yes |
| Audio input | No |
| Headphone out | Yes |
| Headphone outputs | 1 |
Display13 details
| Display technology | LED |
|---|---|
| Touchscreen | No |
| Anti-glare screen | Yes |
| Screen shape | Flat |
| Contrast ratio (typical) | 1000:1 |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Display number of colours | 1.073 billion colours |
| High Dynamic Range (HDR) technology | DisplayHDR 400, High Dynamic Range 10 (HDR10) |
| Colour gamut standard | sRGB |
| On Screen Display (OSD) | Yes |
| On Screen Display (OSD) languages | Arabic, Simplified Chinese, Traditional Chinese, Czech, German, Dutch, English, Spanish, French, Hungarian, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Swedish |
| Native refresh rate | 60 Hz |
Camera, image & video1 detail
| Built-in camera | No |
|---|
Connections & wireless11 details
| Built-in USB hub | Yes |
|---|---|
| USB hub version | 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 | 3 |
| USB Type-C downstream ports quantity | 1 |
| DVI port | No |
| HDMI | Yes |
| HDMI version | 2.0 |
| DisplayPort version | 1.4 |
| Panel mounting interface | 100 x 100 mm |
Power & battery10 details
| Energy efficiency class (SDR) | G |
|---|---|
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 54 kWh |
| Energy consumption (HDR) per 1000 hours | 55 kWh |
| Power consumption (typical) | 185 W |
| Power consumption (standby) | 0.3 W |
| Power consumption (off) | 0.3 W |
| AC input voltage | 100 - 240 V |
| Power supply type | Internal |
| Energy efficiency scale | A to G |
Design & dimensions13 details
| Product colour | Grey |
|---|---|
| Feet colour | Grey |
| VESA mounting | Yes |
| Height adjustment | Yes |
| Adjustable height (max) | 15 cm |
| Width (with stand) | 825.8 mm |
| Depth (with stand) | 244.3 mm |
| Height (with stand) | 445.4 mm |
| Weight (with stand) | 9.3 kg |
| Width (without stand) | 825.8 mm |
| Depth (without stand) | 87.4 mm |
| Height (without stand) | 371.5 mm |
| Weight (without stand) | 6.9 kg |
Further product details25 details
| HD type | Quad HD |
|---|---|
| Native aspect ratio | 21:9 |
| Backlight type | LED |
| Aspect ratio | 21:9 |
| Pixel pitch | 0.2325 x 0.2325 mm |
| Pixel density | 109 ppi |
| Viewable size, horizontal | 80 cm |
| Viewable size, vertical | 33.5 cm |
| sRGB coverage (typical) | 100% |
| NVIDIA G-SYNC | No |
| AMD FreeSync | No |
| Flicker-free technology | Yes |
| Low Blue Light technology | Yes |
| Market positioning | Graphics design |
| HDCP | Yes |
| HDCP version | 2.2 |
| AC (power) in | Yes |
| Cable lock slot | No |
| Swivelling | Yes |
| Swivel angle range | 30 - 30° |
| Tilt adjustment | Yes |
| Tilt angle range | -5 - 20° |
| Picture-in-Picture | Yes |
| Number of OSD languages | 18 |
| Stand included | Yes |
Packaging & supplied accessories7 details
| Package width | 990 mm |
|---|---|
| Package depth | 214 mm |
| Package height | 654 mm |
| Package weight | 13.7 kg |
| Quantity per pack | 1 pc(s) |
| Cables included | AC, DisplayPort to Mini DisplayPort, HDMI, USB |
| 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
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| Sony INZONE M10S reviews → | Sony | SDM27Q10SB.CEI27 inch | 4.36/56 critic reviews |
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Your questions, answered
BenQ PD3420Q FAQs
How many expert reviews are available for BenQ PD3420Q?
This page currently includes 2 scored critic reviews. Each publisher counts once. Follow the review cards for the original verdict and the version that was tested.
What is the COR Score for BenQ PD3420Q?
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 BenQ PD3420Q using manufacturer code 9H.LJHLB.QBE. 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 BenQ PD3420Q?
The source specification records display diagonal as 86.4 cm (34"). 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 BenQ PD3420Q?
The source specification records display resolution as 3440 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 BenQ PD3420Q?
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.