Elevate your performance with a 40-inch curved Thunderbolt™ hub monitor featuring a stunning 5K display and a 120Hz refresh rate.

Specification

Product
Product id	950474
Brand	Dell
Partnr	DELL-U4025QW
EAN/UPC code	5397184821510
Warranty (months)	3 Years Advance Exchange Service
Technical details
Sustainability certificates	ENERGY STAR, RoHS, TCO
Doesn't contain	PVC/BFR
Display
Display diagonal	40 inch
Display resolution	5120 x 2160 Pixels
Native aspect ratio	21:9
Panel type	IPS
Display brightness (typical)	450 cd/m²
Response time	8 ms
HD type	5K Ultra HD
Display technology	LCD
Backlight type	LED
Anti-glare screen	Y
Screen shape	Curved screen
Dell ComfortView technology	Y
Screen curvature rating	2500R
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, 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 2048 x 1152, 2048 x 1280, 2560 x 1080, 3840 x 2160, 4096 x 2160, 5120 x 2160
Supported video modes	480p, 720p, 1080p
Contrast ratio (typical)	2000:1
Maximum refresh rate	120 Hz
Viewing angle, horizontal	178 °
Viewing angle, vertical	178 °
Display number of colours	1.07 billion colours
Dual ambient light sensor	Y
Response time (fast)	5 ms
Pixel density	140 ppi
Pixel pitch	0.1815 x 0.1815 mm
Horizontal scan range	25 - 280 kHz
Vertical scan range	48 - 120 Hz
Viewable size, horizontal	929.28 mm
Viewable size, vertical	392.04 mm
Viewable size diagonal	1008.59 mm
High Dynamic Range (HDR) supported	Y
Heat dissipation	134.8 BTU/h
Surface hardness	3H
RGB colour space	DCI-P3
Colour gamut	99 procent
sRGB coverage (typical)	100 procent
Performance
AMD FreeSync	N
Windows operating systems supported	Windows 10, Y
Mac operating systems supported	MacOS
Flicker-free technology	Y
Low Blue Light technology	Y
Multimedia
Built-in speaker(s)	Y
Built-in camera	N
Number of speakers	2
RMS rated power	18 W
Design
Product colour	Silver
Front bezel colour	Black
Feet colour	Silver
Heavy metals free	Hg (mercury)
Ports & interfaces
Built-in USB hub	Y
Number of USB Type-C upstream ports quantity	2
USB Type-A downstream ports quantity	5
USB Type-C downstream ports quantity	3
USB Type-C DisplayPort Alternate Mode	Y
USB Power Delivery up to	140 W
HDMI	Y
HDMI ports quantity	1
HDMI version	2.1
DisplayPorts quantity	1
DisplayPort version	1.4
Audio output	Y
Headphone out	N
HDCP version	1.4/2.3
Thunderbolt 4 ports quantity	2
Built-in KVM switch	Y
HDCP	Y
DC-in jack	Y
Ergonomics
VESA mounting	Y
Panel mounting interface	100 x 100 mm
Cable lock slot	Y
Cable management	Y
Cable lock slot type	Kensington
Height adjustment	Y
Height adjustment	150 mm
Swivelling	Y
Swivel angle range	-30 - 30 °
Tilt angle range	-5 - 21 °
Picture-in-Picture	Y
Tilt adjustment	Y
On Screen Display (OSD)	Y
Plug and Play	Y
LED indicators	Y
Brand-specific features
Dell Display Manager (DDM) compatibility	Y
Packaging data
Stand included	Y
Cables included	AC, DisplayPort, HDMI, Thunderbolt, USB Type-A to USB Type-C
DisplayPort cable length	1.8 m
HDMI cable length	1.8 m
USB cable length	1 m
Quick start guide	Y
Package weight	19020 g
Power
Energy efficiency class (SDR)	F
Energy consumption (SDR) per 1000 hours	40 kWu
Power consumption (typical)	39.5 W
Energy efficiency class (HDR)	G
Power consumption (standby)	0.4 W
Energy consumption (HDR) per 1000 hours	62 kWu
Power consumption (max)	380 W
Power consumption (off)	0.3 W
AC input voltage	100 - 240 V
AC input frequency	50/60 Hz
Input current	4.2 A
Energy efficiency scale	A to G
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Storage temperature (T-T)	-20 - 60 °C
Operating relative humidity (H-H)	10 - 80 procent
Storage relative humidity (H-H)	5 - 90 procent
Operating altitude	0 - 5000 m
Non-operating altitude	0 - 12192 m
Weight & dimensions
Width (with stand)	946.62 mm
Depth (with stand)	252.8 mm
Height (with stand)	472.32 mm
Weight (with stand)	11730 g
Width (without stand)	946.62 mm
Depth (without stand)	108.04 mm
Height (without stand)	419.14 mm
Weight (without stand)	8350 g
Bezel width (side)	11.3 mm
Bezel width (top)	11.3 mm
Bezel width (bottom)	15.8 mm
Other features
Display brightness (peak)	600 cd/m²
USB Power Delivery	Y
Picture-by-Picture (PbP)	Y
Power supply type	Internal
Touchscreen	N
Automatic brightness control	Y
Ethernet LAN data rates	2500 Mbit/s
Ethernet LAN (RJ-45) ports	1