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MONITORS

Dell UltraSharp 40 Curved Thunderbolt™ Hub Monitor - U4025QW

UK manufacturer part JJPX2 · Dell offer u4025qw_monitor

Viewable display diagonal
39.7 in
Manufacturer-listed display resolution
5120 x 2160
Manufacturer standard refresh rate
120 Hz

Dell UltraSharp 40 Curved Thunderbolt™ Hub Monitor - U4025QW in the exact UK manufacturer part JJPX2 configuration.

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THE ACTUAL PRODUCT
View right-facing U4025QW Ultrasharp 40-inch Monitor
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with LG 40U990A-W

Specifications checked 20 Oct 2026Manufacturer specifications, not a hands-on test.

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The nearest checked monitors by key specifications, with what differs from the Dell UltraSharp 40 Curved Thunderbolt™ Hub Monitor - U4025QW. The first matches the Compare button above.

The useful part.

Key strengths

The manufacturer's exact part identifies the display, connections and original product gallery.

The checks that matter.

Before you buy

Display and power figures are manufacturer claims with the stated source conditions. Unlisted measurements stay unknown; retailer searches do not establish stock or prices.

Every specification. With its source.

Full specifications

Exact configuration: UK manufacturer part JJPX2 · Dell offer u4025qw_monitor

101 specifications in 13 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 5 rows repeat listed facts in the manufacturer’s own wording, kept under “Manufacturer wording”.

Screen & panel

17 items
Viewable display diagonal
39.7 in

Viewable screen-size row; marketing size classes are separate.

Source
Manufacturer-listed display resolution
5120 x 2160

Original manufacturer resolution row. Preset-resolution and refresh conditions remain in their separate source rows.

Source
Panel technology
In-plane Switching (IPS) Black TechnologySource
Technical Information — Number of Screens
1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Screen Size Class
40"

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Viewable Screen Size
100.8 cm (39.7")

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Screen Mode
5K2K WUHD

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Panel Technology
In-plane Switching (IPS) Black Technology

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Aspect Ratio
21:9

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Pixel Pitch
0.18150 mm x 0.18150 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Horizontal Viewing Angle
178 °

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Backlight Technology
LED Edgelight System

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Curved Screen
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Curvature
2500R

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Glass Hardness
3H

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Display Screen Type
Curved

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Video — Pixel Per Inch (PPI)
140

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Manufacturer wording (2)

The same facts in the manufacturer’s combined or original wording, each with its source.

Technical Information — Vertical Viewing Angle
178 °

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Video — Maximum Resolution
5120 x 2160

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Refresh & response

3 items
Manufacturer standard refresh rate
120 Hz

Exact standard-refresh row. Vertical scan ranges and response-time figures are separate.

Source
Technical Information — Response Time Details
5 ms Fast 8 ms Normal Mode

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Power Description — Frequency
50 Hz 60 Hz

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

Video — Standard Refresh Rate
120 Hz

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Colour, brightness & HDR

9 items
Technical Information — High Dynamic Range (HDR) Ready
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — High Dynamic Range (HDR) Type
VESA DisplayHDR 600

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Video — Colour Supported
1.07 Billion Colors

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Video — Native Contrast Ratio
2,000:1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Video — Brightness
450 cd/m²

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Video — Colour Gamut
100% BT.709 100% sRGB 98% Display P3 99% DCI-P3

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Video — Brightness (Peak)
600 cd/m²

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Colour Family
Silver

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Product Colour
Silver

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Inputs & connections

19 items
Manufacturer inputs and connections
1 x HDMI (supports up to 5K2K 5120 x 2160 120Hz FRL, HDR Static Metadata, VRR as per specified in HDMI 2.1.) 1 x DP 1.4 (HDCP 2.3) (Support up to 5120 x 2160 120Hz, HDR, DSC) 1 x ThunderboltTM 4 downstream port (15 W) for daisy chaining (Video + Data) 1 x ThunderboltTM 4 (Up to 140W EPR) (Alternate mode with DisplayPort 1.4, SuperSpeed USB 3.2 Gen2 (10 Gbps) upstream port, USB Power Delivery up to 140W EPR) 1 x USB Type-C® upstream port (data only) (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) 4 x USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) 1 x Audio line-out 1 x RJ45 Ethernet port, 2.5GbE 1 x USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with BC1.2 power charging 2 x USB Type-C® downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with power charging (15W)

Only the literal manufacturer interface-details row. Individual connector counts and versions remain in their separate labelled rows; no protocol is inferred.

Source
Technical Information — HDCP Supported
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Network (RJ-45)
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — HDMI
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — HDMI Version
2.1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — USB
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — DisplayPort™
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Thunderbolt™
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — USB Type-C®
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Total Number of HDMI Ports
1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Number of USB Ports
8

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Number of DisplayPorts
1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Thunderbolt 4
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Number of USB Type-C 3.2 Gen 2 Upstream Ports
1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Number of USB Type-A 3.2 Gen 2 Downstream Ports
5

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Number of USB Type-C 3.2 Gen 2 Downstream Ports
2

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Number of DisplayPort 1.4 Ports
1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Interface/Port Details
1 x HDMI (supports up to 5K2K 5120 x 2160 120Hz FRL, HDR Static Metadata, VRR as per specified in HDMI 2.1.) 1 x DP 1.4 (HDCP 2.3) (Support up to 5120 x 2160 120Hz, HDR, DSC) 1 x ThunderboltTM 4 downstream port (15 W) for daisy chaining (Video + Data) 1 x ThunderboltTM 4 (Up to 140W EPR) (Alternate mode with DisplayPort 1.4, SuperSpeed USB 3.2 Gen2 (10 Gbps) upstream port, USB Power Delivery up to 140W EPR) 1 x USB Type-C® upstream port (data only) (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) 4 x USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) 1 x Audio line-out 1 x RJ45 Ethernet port, 2.5GbE 1 x USB Type-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with BC1.2 power charging 2 x USB Type-C® downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with power charging (15W)

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Built-in Devices — Webcam
No

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Stand & mounting

11 items
Technical Information — Mount Type
Panel Mount

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Maximum Adjustable Height
150 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Tilt Angle
-5 ° to 21 °

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Swivel Angle
-30 ° to 30 °

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Adjustable Stand
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Stand Adjustments
Height Swivel Tilt

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — VESA Mount Compatible
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — VESA Mount Standard
100 x 100

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Height
419.14 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Height with Stand
622.32 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Compressed Height with Stand
472.32 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

Physical Characteristics — Extended Height with Stand
622.32 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Size, weight & build

7 items
Manufacturer dimensions with stand
946.62 × 622.32 × 252.80 mm (width × height × depth, with stand)

Only explicit width, height and depth with stand in mm are combined. Compressed and extended height, stand-free and packaging dimensions remain in separate manufacturer rows.

Source
Technical Information — Active Display Area (H x V)
929.20 mm x 392 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Width
946.62 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Depth
108.04 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Depth with Stand
252.80 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Weight (Approximate)
8.35 kg

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Physical Characteristics — Weight with Stand (Approximate)
12.22 kg

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

Physical Characteristics — Width with Stand
946.62 mm

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Environment & materials

5 items
Environmental Conditions — Non-operating Temperature Range
-20 ° C to 60 ° C

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Environmental Conditions — Non-operating Humidity Range
5% to 90% (Non-condensing)

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Environmental Conditions — Maximum Operating Altitude
5 km

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Environmental Conditions — Maximum Non-operating Altitude
12.19 km

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Miscellaneous — Environmentally Friendly
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Power & energy

8 items
Power Description — Input Voltage Range
100V AC to 240V AC

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Power Description — Operating Power Consumption
39.50 W

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Power Description — Standby Power Consumption
400 mW

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Power Description — Off-Mode Power Consumption
300 mW

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Power Description — Maximum Power Consumption
380 W

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Power Description — Voltage Current
4.20 A

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Power Description — Input Voltage Range/Current Details
100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 4.2 A (typical)

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Miscellaneous — Energy Star®
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Eye care & features

1 item
Miscellaneous — Dell Display and Peripheral Manager Compatibility
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Audio

5 items
Audio — Number of Speakers
2

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Audio — Speakers
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Audio — Speaker Output Power
2 x 9 W

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Audio Line Out
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Interfaces/Ports — Number of Audio Line Out Ports
1

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Box, warranty & identity

14 items
General Information — Manufacturer
Dell Technologies

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
General Information — Manufacturer Part Number
JJPX2

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
General Information — Brand Name
Dell

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
General Information — Product Line
UltraSharp

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
General Information — Product Model
U4025QW

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
General Information — Product Name
UltraSharp 40 Curved Thunderbolt Hub Monitor - U4025QW

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
General Information — Product Type
LED Monitor

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Technical Information — Stand Included
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Miscellaneous — Package Contents
UltraSharp 40 Curved Thunderbolt Hub Monitor - U4025QW Stand Riser Stand Base 1 x Power Cable 1 x DisplayPort 1.4 Cable - 1.8 m 1 x USB Type-A to USB Type-C Gen 2 Cable - 1 m 1 x HDMI Cable - 1.8m 1 x Thunderbolt 4 active Cable - 1.5 m Quick Setup guide Safety Environmental and Regulatory Information Factory calibration Report

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Miscellaneous — TCO Certified
Yes

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Miscellaneous — Environmental Certification
TCO Certified Edge

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Miscellaneous — Environmental Compliance
Restriction of Hazardous Substances (RoHS)

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Miscellaneous — Cable Type Included
1 x Power cable 1 x DisplayPort 1.4 cable - 1.8 m 1 x USB Type-A to USB Type-C Gen 2 cable - 1 m 1 x HDMI cable - 1.8m 1 x Thunderbolt TM cable - 1.5 m

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Warranty — Limited Warranty
3 Year

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Built-in computer & security

1 item
Built-in Devices — Built-in Devices
KVM Switch USB Hub

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source

Other details

1 item
Technical Information — Features
Ambient Light Sensor Anti-glare Cable Lock Slot Digital Daisy Chain Easy Arrange HDR Ready Picture by Picture; Picture in Picture Security Lock sRGB Stand Lock VESA DisplayHDR 600

Literal manufacturer technical-table row. The original group, dimensional basis, units and qualifications are retained; no unstated condition is inferred.

Source
Similar products.

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