DELL UltraSharp U4323QE 109.2 cm (43") 3840 x 2160 pixels 4K Ultra HD LCD Silver

Manufacturer: Dell | Model: DELL-U4323QE | Product ID: 4175 | Warranty: 3 Years Base Adv Ex
£858.27 (inc. VAT)
15 in stock
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Product Technical Specification

Display
Display diagonal43
Display resolution3840 x 2160
HD type4K Ultra HD
Native aspect ratio16:9
Display technologyLCD
Panel typeIPS
Backlight typeW-LED
TouchscreenNo
Display brightness (typical)350
Response time8
Anti-glare screenYes
Screen shapeFlat screen
Supported graphics resolutions640 x 480 (VGA),720 x 400,800 x 600 (SVGA),1024 x 768 (XGA),1152 x 864 (XGA+),1280 x 1024 (SXGA),1280 x 800,1600 x 1200 (UXGA),1920 x 1080 (HD 1080),1920 x 1200 (WUXGA),2048 x 1152,3840 x 2160
Supported video modes480p,576p,720p,1080i,1080p,2160p
Contrast ratio (typical)1000:1
Maximum refresh rate60
Viewing angle, horizontal178
Viewing angle, vertical178
Display number of colours1.07 billion colours
Response time (fast)5
Pixel pitch0.2451 x 0.2451
Pixel density103.6
Horizontal scan range30 - 140
Vertical scan range29 - 76
Viewable size, horizontal941.184
Viewable size, vertical529.416
Viewable size diagonal107.95
High Dynamic Range (HDR) supportedNo
Surface hardness3H
RGB colour spacesRGB
Colour gamut95
Multimedia
Built-in speaker(s)Yes
Built-in cameraNo
Number of speakers2
RMS rated power8
Design
Market positioningBusiness
Product colourSilver
Front bezel colourBlack
Feet colourSilver
Heavy metals freeHg (mercury)
Ports & interfaces
Built-in USB hubYes
USB hub version3.2 Gen 2 (3.1 Gen 2)
USB upstream port typeUSB Type-C
Number of USB Type-C upstream ports quantity4
USB Type-A downstream ports quantity4
USB Type-C downstream ports quantity1
USB Type-C DisplayPort Alternate ModeYes
USB Power DeliveryYes
USB Power Delivery up to90
HDMIYes
HDMI ports quantity2
HDMI version2.1
DisplayPorts quantity2
DisplayPort version1.4
Headphone outYes
Headphone outputs1
Built-in KVM switchYes
Charging port typeUSB Type-C
AC (power) inYes
Network
Wi-FiNo
Ergonomics
VESA mountingYes
Panel mounting interface100 x 100,200 x 200
Cable managementYes
Cable lock slotYes
Height adjustmentYes
Height adjustment60
PivotNo
SwivellingYes
Swivel angle range-20 - 20
Tilt angle range-5 - 10
On Screen Display (OSD)Yes
Plug and PlayYes
LED indicatorsYes
Tilt adjustmentYes
Power
Energy efficiency class (SDR)G
Energy efficiency class (HDR)Not available
Energy consumption (SDR) per 1000 hours52
Power consumption (typical)52.1
Power consumption (standby)0.3
Power consumption (max)250
Power consumption (off)0.3
AC input voltage100 - 240
AC input frequency50 - 60
Power supply typeInternal
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-20 - 60
Operating relative humidity (H-H)10 - 80
Storage relative humidity (H-H)5 - 90
Operating altitude0 - 5000
Non-operating altitude0 - 12192
Weight & dimensions
Width (with stand)967.21
Depth (with stand)256.4
Height (with stand)595.2
Weight (with stand)18550
Width (without stand)967.21
Depth (without stand)64.08
Height (without stand)560.5
Weight (without stand)13160
Bezel width (side)13.01
Bezel width (top)12.99
Bezel width (bottom)18.1
Packaging data
Package weight25230
Sustainability
Sustainability certificatesENERGY STAR,RoHS
Doesn't containPVC/BFR
Brand-specific features
Dell Display Manager (DDM) compatibilityYes
Other features
On/off switchYes
RJ-45 ports quantity1

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Wed 26th Aug 2026 to Sat 29th Aug 2026
Business Express
£6.95
Business Express

Business Express

Estimated delivery date: Tue 25th Aug 2026 to Thu 27th Aug 2026
View all Delivery Options & International Rates
Multiply your productivity with this 42.5'' monitor featuring multi-PC connectivity, 4 unique FHD partitions via iMST, ComfortView Plus and wired Ethernet.
Display
Display diagonal43
Display resolution3840 x 2160
HD type4K Ultra HD
Native aspect ratio16:9
Display technologyLCD
Panel typeIPS
Backlight typeW-LED
TouchscreenNo
Display brightness (typical)350
Response time8
Anti-glare screenYes
Screen shapeFlat screen
Supported graphics resolutions640 x 480 (VGA),720 x 400,800 x 600 (SVGA),1024 x 768 (XGA),1152 x 864 (XGA+),1280 x 1024 (SXGA),1280 x 800,1600 x 1200 (UXGA),1920 x 1080 (HD 1080),1920 x 1200 (WUXGA),2048 x 1152,3840 x 2160
Supported video modes480p,576p,720p,1080i,1080p,2160p
Contrast ratio (typical)1000:1
Maximum refresh rate60
Viewing angle, horizontal178
Viewing angle, vertical178
Display number of colours1.07 billion colours
Response time (fast)5
Pixel pitch0.2451 x 0.2451
Pixel density103.6
Horizontal scan range30 - 140
Vertical scan range29 - 76
Viewable size, horizontal941.184
Viewable size, vertical529.416
Viewable size diagonal107.95
High Dynamic Range (HDR) supportedNo
Surface hardness3H
RGB colour spacesRGB
Colour gamut95
Multimedia
Built-in speaker(s)Yes
Built-in cameraNo
Number of speakers2
RMS rated power8
Design
Market positioningBusiness
Product colourSilver
Front bezel colourBlack
Feet colourSilver
Heavy metals freeHg (mercury)
Ports & interfaces
Built-in USB hubYes
USB hub version3.2 Gen 2 (3.1 Gen 2)
USB upstream port typeUSB Type-C
Number of USB Type-C upstream ports quantity4
USB Type-A downstream ports quantity4
USB Type-C downstream ports quantity1
USB Type-C DisplayPort Alternate ModeYes
USB Power DeliveryYes
USB Power Delivery up to90
HDMIYes
HDMI ports quantity2
HDMI version2.1
DisplayPorts quantity2
DisplayPort version1.4
Headphone outYes
Headphone outputs1
Built-in KVM switchYes
Charging port typeUSB Type-C
AC (power) inYes
Network
Wi-FiNo
Ergonomics
VESA mountingYes
Panel mounting interface100 x 100,200 x 200
Cable managementYes
Cable lock slotYes
Height adjustmentYes
Height adjustment60
PivotNo
SwivellingYes
Swivel angle range-20 - 20
Tilt angle range-5 - 10
On Screen Display (OSD)Yes
Plug and PlayYes
LED indicatorsYes
Tilt adjustmentYes
Power
Energy efficiency class (SDR)G
Energy efficiency class (HDR)Not available
Energy consumption (SDR) per 1000 hours52
Power consumption (typical)52.1
Power consumption (standby)0.3
Power consumption (max)250
Power consumption (off)0.3
AC input voltage100 - 240
AC input frequency50 - 60
Power supply typeInternal
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-20 - 60
Operating relative humidity (H-H)10 - 80
Storage relative humidity (H-H)5 - 90
Operating altitude0 - 5000
Non-operating altitude0 - 12192
Weight & dimensions
Width (with stand)967.21
Depth (with stand)256.4
Height (with stand)595.2
Weight (with stand)18550
Width (without stand)967.21
Depth (without stand)64.08
Height (without stand)560.5
Weight (without stand)13160
Bezel width (side)13.01
Bezel width (top)12.99
Bezel width (bottom)18.1
Packaging data
Package weight25230
Sustainability
Sustainability certificatesENERGY STAR,RoHS
Doesn't containPVC/BFR
Brand-specific features
Dell Display Manager (DDM) compatibilityYes
Other features
On/off switchYes
RJ-45 ports quantity1

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Buykingston order despatch times:

We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Despatch times do not apply to UK public holidays.

Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

Our warehouse reserves the right to upgrade the delivery method you select on your order.

Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

Product Returns Note

Buykingston offers a simple, hassle-free returns policy. If for whatever reason you are not happy with the item purchased, you can return it to us within 14 days of receipt for a refund. This applies to items purchased direct through Buykingston only.

Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If an item has been opened for inspection but shows signs of use beyond that, a deduction may apply to reflect the reduced value — see our full Terms & Conditions (Section 12) for details.

Some items are excluded from our money-back guarantee unless they have developed a fault. These include:

- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with custom logos on them, e.g. USB flash drives and memory cards with your own logo

Returns FAQs

What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked items.

How do I go about returning my order?
Please contact us via our contact page with your order number. We will provide you with an RMA number and return instructions, including your return deadline and whether a freepost label applies to your order.

Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.

Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we understand you may no longer have the original packaging.

Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable return postage, or provide a freepost label where available. If you are returning an item for another reason (including simply changing your mind), you are responsible for return postage unless we have expressly confirmed a freepost label in your RMA email — we recommend using a tracked and insured service for items of significant value.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer directly for assistance.

Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.