Next Working Day
On qualifying orders
UK Dispatched
Fast & reliable nationwide
Expert Support
Mon–Fri, 8 am – 6 pm
Genuine Brands
Authorised reseller
Next-working-day delivery. Order before 17:30 (England & Wales) or 16:00 (Northern Ireland, Republic of Ireland, Scotland) to receive next-working-day delivery. Orders placed before 17:30 Friday are delivered Monday; after 17:30 Friday arrive Tuesday. Upgrades — pre-9, pre-10:30, pre-noon, special and secure bulk — available at extra cost.
Orders over £100 (ex VAT) receive FREE next-working-day delivery across the UK.
Instant digital delivery. Software licences, subscriptions, warranties & insurance, and electronic copies are delivered the same day via email — provided a valid email address is entered at checkout.
This product is out of stock
We can email you when it's back in stock, confirm expected lead times, or recommend in-stock alternatives that meet the same requirements.

Dell UltraSharp U4323QE
LED monitor
42.51"
3840 x 2160 4K @ 60 Hz
IPS
350 cd/m²
1000:1
5 ms
2xHDMI, 2xDisplayPort, USB-C
speakers
with 3-Year Advanced Exchange Service and Premium Panel Exchange
Weight: 20.10 KG
- More ways to see it all
- Exceptional details
- Outstanding color
- Fully adaptable
- The space to perform
Similar Products
Overview
The 4K UHD resolution and a high pixel density of 103 ppi shows your work in striking clarity. Experience smooth color gradation and precision across more shades with a high color depth of 1.07 billion colors. The height adjustable 42.5-inch 4K monitor lets you tilt, swivel and adjust to your specifications. Align it to a multi-monitor setup for an even wider view. Your display is designed for greater comfort under long work days. It includes a flicker-free screen and ComfortView, a feature that reduces up to 60% of harmful blue light emissions.
Specifications
Display
- HD type
- 4K Ultra HD
- Panel type
- IPS
- Response time
- 8 ms
- Screen shape
- Flat
- Contrast ratio (typical)
- 1000:1
- Maximum refresh rate
- 60 Hz
- Display number of colours
- 1.07 billion colours
- Backlight type
- W-LED
- Display brightness (typical)
- 350 cd/m²
- Anti-glare screen
- Yes
- 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 800, 1600 x 1200 (UXGA), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 2048 x 1152, 3840 x 2160
- Supported video modes
- 480p, 576p, 720p, 1080i, 1080p, 2160p
- Viewing angle, horizontal
- 178°
- Viewing angle, vertical
- 178°
- Response time (fast)
- 5 ms
- Pixel pitch
- 0.2451 x 0.2451 mm
- Pixel density
- 103.6 ppi
- Horizontal scan range
- 30 - 140 kHz
- Vertical scan range
- 29 - 76 Hz
- Viewable size, horizontal
- 94.1 cm
- Viewable size, vertical
- 52.9 cm
- Viewable size diagonal
- 10.8 cm
- High Dynamic Range (HDR) supported
- No
- Surface hardness
- 3H
- Colour gamut standard
- sRGB
- Colour gamut
- 95%
- Display diagonal
- 109.2 cm (43") cm
- Display resolution
- 3840 x 2160 pixels pixels
- Response time
- 8 ms ms
- Maximum refresh rate
- 60 Hz Hz
- Display brightness (typical)
- 350 cd/m² cd/m²
- Viewing angle, horizontal
- 178° °
- Viewing angle, vertical
- 178° °
- Response time (fast)
- 5 ms ms
- Pixel pitch
- 0.2451 x 0.2451 mm mm
- Pixel density
- 103.6 ppi ppi
- Horizontal scan range
- 30 - 140 kHz kHz
- Viewable size, vertical
- 52.9 cm cm
- Viewable size diagonal
- 10.8 cm cm
- Colour gamut
- 95% %
- Vertical scan range
- 29 - 76 Hz Hz
- Viewable size, horizontal
- 94.1 cm cm
- Display diagonal
- 109.2 cm (43")
- Display resolution
- 3840 x 2160 pixels
- Native aspect ratio
- 16:9
- Display technology
- LCD
- Touchscreen
- No
Multimedia
- Built-in speaker(s)
- Yes
- Built-in camera
- No
- Number of speakers
- 2
- RMS rated power
- 8 W
- RMS rated power
- 8 W W
Design
- Market positioning
- Business
- Product colour
- Silver
- Front bezel colour
- Black
- Feet colour
- Silver
Ports & interfaces
- Built-in USB hub
- Yes
- HDMI
- Yes
- Headphone out
- Yes
- USB hub version
- 3.2 Gen 2 (3.1 Gen 2)
- USB upstream port type
- USB Type-C
- Number of USB Type-C upstream ports quantity
- 4
- USB Type-A downstream ports quantity
- 4
- USB Type-C downstream ports quantity
- 1
- USB Type-C DisplayPort Alternate Mode
- Yes
- USB Power Delivery (USB PD)
- Yes
- USB Power Delivery up to
- 90 W
- HDMI ports quantity
- 2
- HDMI version
- 2.1
- DisplayPorts quantity
- 2
- DisplayPort version
- 1.4
- Headphone outputs
- 1
- Built-in KVM switch
- Yes
- Charging port type
- USB Type-C
- AC (power) in
- Yes
- USB Power Delivery up to
- 90 W W
Network
- Wi-Fi
- No
Ergonomics
- VESA mounting
- Yes
- Cable lock slot
- Yes
- Height adjustment
- Yes
- Panel mounting interface
- 100 x 100,200 x 200 mm
- Cable management
- Yes
- Adjustable height (max)
- 6 cm
- Pivot
- No
- Swivelling
- Yes
- Swivel angle range
- -20 - 20°
- Tilt adjustment
- Yes
- Tilt angle range
- -5 - 10°
- On Screen Display (OSD)
- Yes
- Plug and Play
- Yes
- LED indicators
- Yes
- Panel mounting interface
- 100 x 100,200 x 200 mm mm
- Adjustable height (max)
- 6 cm cm
- Swivel angle range
- -20 - 20° °
- Tilt angle range
- -5 - 10° °
Power
- Energy efficiency class (SDR)
- G
- Energy efficiency class (HDR)
- Not available
- Energy consumption (SDR) per 1000 hours
- 52 kWh
- Power consumption (typical)
- 52.1 W
- Power consumption (standby)
- 0.3 W
- Power consumption (max)
- 250 W
- Power consumption (off)
- 0.3 W
- AC input voltage
- 100 - 240 V
- AC input frequency
- 50 - 60 Hz
- Power supply type
- Internal
- European Product Registry for Energy Labelling (EPREL) code
- 1260604
- Energy consumption (SDR) per 1000 hours
- 52 kWh kWh
- Power consumption (typical)
- 52.1 W W
- Power consumption (standby)
- 0.3 W W
- Power consumption (max)
- 250 W W
- Power consumption (off)
- 0.3 W W
- AC input voltage
- 100 - 240 V V
- AC input frequency
- 50 - 60 Hz Hz
Operational conditions
- Operating temperature (T-T)
- 0 - 40 °C
- Storage temperature (T-T)
- -20 - 60 °C
- Operating relative humidity (H-H)
- 10 - 80%
- Storage relative humidity (H-H)
- 5 - 90%
- Operating altitude
- 0 - 5000 m
- Non-operating altitude
- 0 - 12192 m
- Operating temperature (T-T)
- 0 - 40 °C °C
- Storage temperature (T-T)
- -20 - 60 °C °C
- Operating relative humidity (H-H)
- 10 - 80% %
- Storage relative humidity (H-H)
- 5 - 90% %
- Operating altitude
- 0 - 5000 m m
- Non-operating altitude
- 0 - 12192 m m
Weight & dimensions
- Width (with stand)
- 967.2 mm
- Depth (with stand)
- 256.4 mm
- Height (with stand)
- 595.2 mm
- Weight (with stand)
- 18.6 kg
- Width (without stand)
- 967.2 mm
- Depth (without stand)
- 64.1 mm
- Height (without stand)
- 560.5 mm
- Weight (without stand)
- 13.2 kg
- Bezel width (side)
- 1.3 cm
- Bezel width (top)
- 1.3 cm
- Bezel width (bottom)
- 1.81 cm
- Width (with stand)
- 967.2 mm mm
- Depth (with stand)
- 256.4 mm mm
- Height (with stand)
- 595.2 mm mm
- Weight (with stand)
- 18.6 kg kg
- Width (without stand)
- 967.2 mm mm
- Depth (without stand)
- 64.1 mm mm
- Height (without stand)
- 560.5 mm mm
- Weight (without stand)
- 13.2 kg kg
- Bezel width (side)
- 1.3 cm cm
- Bezel width (top)
- 1.3 cm cm
- Bezel width (bottom)
- 1.81 cm cm
Packaging data
- Package weight
- 25.2 kg
- Package weight
- 25.2 kg kg
Sustainability
- Sustainability certificates
- ENERGY STAR
- Doesn't contain
- PVC/BFR
Carbon footprint
- Total carbon footprint (kg of CO2e)
- 1010
- Total carbon emissions, standard deviation (kg of CO2e)
- 263
- Carbon emissions, manufacturing (kg of CO2e)
- 512.5
- Carbon emissions, logistics (kg of CO2e)
- 124
- Carbon emissions, energy usage (kg of CO2e)
- 358
- Carbon emissions, end-of-life (kg of CO2e)
- 14.3
- Total carbon emissions, w/o use phase (kg of CO2e)
- 652
- PAIA version
- 1.3.2, 2022
Other features
- On/off switch
- Yes
- RJ-45 ports quantity
- 1
- Heavy metals free
- Hg (mercury)
- Compliance certificates
- RoHS
- Ethernet LAN (RJ-45) ports
- 0
Brand-specific features
- Dell Display Manager (DDM) compatibility
- Yes




