Dell UltraSharp 34 Curved Thunderbolt Hub (U3425WE) vs Dell UltraSharp 40 Curved Thunderbolt Hub (U4025QW)

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UltraSharp 34 Curved Thunderbolt Hub (U3425WE) compared with UltraSharp 40 Curved Thunderbolt Hub (U4025QW)

	DellUltraSharp 34 Curved Thunderbolt Hub (U3425WE)	DellUltraSharp 40 Curved Thunderbolt Hub (U4025QW)
Overview
Released
Released	February 2024	January 2024
Display
Screen size
Screen size	34.14″	39.7″
Resolution
Resolution	3440 × 1440 (UWQHD)	5120 × 2160 (5K2K) (better)
Sharpness
Sharpness	109 pixels per inch	140 pixels per inch (better)
Panel
Panel	IPS (IPS Black)	IPS (IPS Black)
Refresh rate
Refresh rate	120 Hz	120 Hz
Response time (grey to grey)
Response time (grey to grey)	5 ms	5 ms
Brightness (typical)
Brightness (typical)	300 nits	450 nits (better)
HDR peak brightness
HDR peak brightness	–	600 nits
HDR certification
HDR certification	–	DisplayHDR 600
Contrast ratio
Contrast ratio	2,000:1	2,000:1
Colour range
Colour range	98% DCI-P3, 98% Display P3, 100% sRGB	99% DCI-P3, 99% Display P3, 100% sRGB
DCI-P3 coverage
DCI-P3 coverage	98%	99% (better)
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 2	Below 2
Screen finish
Screen finish	Matte	Matte
Shape
Shape	Curved (1900R)	Curved (2500R)
Adaptive sync
Adaptive sync	–	HDMI VRR
Colour depth
Colour depth	1.07 billion colours	1.07 billion colours (8-bit + A-FRC)
sRGB coverage
sRGB coverage	100% (CIE 1931)	100%
Colour accuracy
Colour accuracy	Delta E < 2 (average) (DCI-P3, Display P3, sRGB, BT.709); factory calibration report in the box	Delta E < 2 (average) (DCI-P3, Display P3, sRGB, BT.709); factory calibration report in the box
HDR detail
HDR detail	–	600 cd/m² HDR peak; HDR static metadata over HDMI
Response time detail
Response time detail	5 ms (Fast), 8 ms (Normal)	5 ms (Fast), 8 ms (Normal)
Variable refresh range
Variable refresh range	48–120 Hz over DisplayPort and Thunderbolt 4; 48–100 Hz over HDMI (vertical scan range)	48–120 Hz (vertical scan range)
Viewing angles
Viewing angles	178° horizontal, 178° vertical (typical)	178° horizontal, 178° vertical (typical)
Pixel pitch
Pixel pitch	0.2325 mm x 0.2325 mm	0.1815 mm x 0.1815 mm
Eye care
Eye care	ComfortView Plus hardware low blue light; TÜV Rheinland Eye Comfort 3.0 (5 star); ambient light sensor (Auto Brightness); flicker-free	ComfortView Plus hardware low blue light; TÜV Rheinland Eye Comfort 3.0 (5 star); ambient light sensor; flicker-free
Connections
Video inputs
Video inputs	HDMI 2.1 (TMDS), DisplayPort 1.4, Thunderbolt 4	HDMI 2.1, DisplayPort 1.4, Thunderbolt 4
USB-C charging
USB-C charging	Up to 90 W	Up to 140 W (better)
USB ports
USB ports	2 × USB-C, 5 × USB-A, Thunderbolt 4	2 × USB-C, 5 × USB-A, Thunderbolt 4
KVM switch
KVM switch	Yes	Yes
Ethernet
Ethernet	Yes	Yes
Speakers
Speakers	Yes	Yes
HDMI detail
HDMI detail	1 x HDMI (HDCP 1.4 & 2.2), up to 3440 x 1440 at 100 Hz TMDS as specified in HDMI 2.1	1 x HDMI, up to 5120 x 2160 at 120 Hz FRL with HDR static metadata and VRR as specified in HDMI 2.1
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4 (HDCP 1.4 & 2.2), up to 3440 x 1440 at 120 Hz	1 x DisplayPort 1.4 (HDCP 2.3), up to 5120 x 2160 at 120 Hz with HDR and DSC; internal MST (Screen Partition) over DisplayPort and Thunderbolt 4
USB-C detail
USB-C detail	Thunderbolt 4 upstream (40Gbps, DisplayPort 1.4 Alt Mode, Power Delivery up to 90 W); USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream quick-access ports (15 W)	Thunderbolt 4 upstream (DisplayPort 1.4 Alt Mode, USB 10Gbps, Power Delivery up to 140 W EPR); USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream quick-access ports (15 W)
Daisy chaining
Daisy chaining	Thunderbolt 4 downstream port (video and data, 15 W)	Thunderbolt 4 downstream port (video and data, 15 W)
USB hub detail
USB hub detail	4 x USB-A 10Gbps rear; quick access ports with 1 x USB-A 10Gbps (BC 1.2) and 2 x USB-C 10Gbps (15 W)	4 x USB-A 10Gbps rear; quick access ports with 1 x USB-A 10Gbps (BC 1.2) and 2 x USB-C 10Gbps (15 W)
Picture by picture
Picture by picture	Picture by Picture and Picture in Picture	Picture by Picture and Picture in Picture, with KVM switching
Audio out
Audio out	3.5 mm audio line out	3.5 mm audio line out
Speaker detail
Speaker detail	2 x 5 W	2 x 9 W
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel	Height, tilt, swivel
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	10.81 kg	12.22 kg
Height adjustment
Height adjustment	150 mm	150 mm
Tilt
Tilt	-5° to 21°	-5° to 21°
Swivel
Swivel	-30° to 30°	-30° to 30°
VESA pattern
VESA pattern	100 x 100 mm	100 x 100 mm
Size with stand
Size with stand	813.46 x 240.43 x 392.83–542.83 mm (W x D x H)	946.62 x 252.80 x 472.32–622.32 mm (W x D x H)
Size without stand
Size without stand	813.46 x 105.08 x 359.15 mm (W x D x H)	946.62 x 108.04 x 419.14 mm (W x D x H)
Weight without stand
Weight without stand	7.78 kg	8.35 kg
Colours
Colours	Silver	–
Power and support
Power use
Power use	31.5 W on mode, 0.5 W standby, 1.9 W networked standby, 0.3 W off, 250 W maximum	39.5 W on mode, 0.4 W standby, 1.8 W networked standby, 0.3 W off, 380 W maximum
Energy class
Energy class	F	F
Power supply
Power supply	100–240 VAC, 50/60 Hz, 3.2 A (typical)	100–240 VAC, 50/60 Hz, 4.2 A (typical)
Software
Software	Dell Display and Peripheral Manager (Easy Arrange)	Dell Display and Peripheral Manager (Easy Arrange)
Certifications
Certifications	TÜV Rheinland Eye Comfort 3.0 (5 star), TÜV Rheinland hardware low blue light	ENERGY STAR, TCO Certified Edge, TÜV Rheinland Eye Comfort 3.0 (5 star)
Warranty
Warranty	3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange (UK)	3 years limited hardware (UK)
In the box
In the box	Stand, power cable, DisplayPort 1.4 cable (1.8 m), HDMI cable (1.8 m), Thunderbolt 4 passive cable (1 m), USB-A to USB-C cable (1 m), factory calibration report	Stand, power cable, DisplayPort 1.4 cable (1.8 m), HDMI 2.1 cable (1.8 m), Thunderbolt 4 active cable (1.5 m), USB-A to USB-C cable (1 m), factory calibration report