Dell UltraSharp 27 USB-C Hub Monitor (U2721DE) vs Dell UltraSharp 52 Thunderbolt Hub (U5226KW)

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UltraSharp 27 USB-C Hub Monitor (U2721DE) compared with UltraSharp 52 Thunderbolt Hub (U5226KW)

	DellUltraSharp 27 USB-C Hub Monitor (U2721DE)	DellUltraSharp 52 Thunderbolt Hub (U5226KW)
Overview
Released
Released	April 2020	January 2026
Display
Screen size
Screen size	27″	51.5″
Resolution
Resolution	2560 × 1440 (QHD)	6144 × 2560 (better)
Sharpness
Sharpness	109 pixels per inch	129 pixels per inch (better)
Panel
Panel	IPS	IPS (IPS Black)
Refresh rate
Refresh rate	60 Hz	120 Hz (better)
Response time (grey to grey)
Response time (grey to grey)	5 ms	5 ms
Brightness (typical)
Brightness (typical)	350 nits	400 nits (better)
Contrast ratio
Contrast ratio	1,000:1	2,000:1
Colour range
Colour range	99% sRGB, 99% Rec.709, 85% DCI-P3	99% DCI-P3, 99% Display P3, 100% BT.709
DCI-P3 coverage
DCI-P3 coverage	85%	99% (better)
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 2	Below 1.5 (better)
Screen finish
Screen finish	Matte	Matte
Shape
Shape	Flat	Curved (4200R)
Adaptive sync
Adaptive sync	–	HDMI VRR
Colour depth
Colour depth	16.7 million colours	1.07 billion colours (8-bit + FRC)
sRGB coverage
sRGB coverage	99% sRGB and 99% Rec.709 claimed by Dell	100% (CIE 1931)
Colour accuracy
Colour accuracy	–	Delta E < 1.5 (average) (sRGB, BT.709, DCI-P3, Display P3)
Colour modes
Colour modes	–	Standard, Movie, Game, Color Temp. (5,000K to 10,000K), Color Space (sRGB, BT.709, DCI-P3, Display P3), Custom Color
Response time detail
Response time detail	5 ms Fast, 8 ms Normal, grey-to-grey	5 ms GTG (Fast mode), 8 ms GTG (Normal mode)
Viewing angles
Viewing angles	178° horizontal and vertical	178° horizontal, 178° vertical (typical)
Pixel pitch
Pixel pitch	0.233 mm	0.19644 mm x 0.19644 mm
Eye care
Eye care	Flicker-free panel and ComfortView low-blue-light mode	ComfortView Plus (blue light ≤20%), TÜV Rheinland Eye Comfort 3.0 5-star, flicker-free, ambient light sensor with Auto Brightness and Auto Color Temp.
Calibration
Calibration	Factory average Delta E below 2, according to Dell	–
Connections
Video inputs
Video inputs	HDMI, DisplayPort 1.4, USB-C	2 × HDMI 2.1, 2 × DisplayPort 1.4, Thunderbolt 4
USB-C charging
USB-C charging	Up to 65 W	Up to 140 W (better)
USB ports
USB ports	4 × USB-A	2 × USB-C, 5 × USB-A
KVM switch
KVM switch	No	Yes
Ethernet
Ethernet	Yes	Yes
Speakers
Speakers	No	Yes
HDMI detail
HDMI detail	–	2 x HDMI (HDCP 2.2), up to 6144 x 2560 at 120 Hz FRL with VRR as specified in HDMI 2.1; no ARC/eARC or ALLM
DisplayPort detail
DisplayPort detail	One DisplayPort 1.4 input and one DisplayPort output with MST support.	2 x DisplayPort 1.4 in (HDCP 2.2), up to 6144 x 2560 at 120 Hz with DSC
USB-C detail
USB-C detail	USB-C upstream carries DisplayPort 1.4 video and USB 3.1 data, with up to 65 W Power Delivery.	Thunderbolt 4 upstream (40Gbps, DisplayPort 1.4 with DSC, Power Delivery up to 140 W EPR); 3 x USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream with 27 W charging
Daisy chaining
Daisy chaining	DisplayPort MST output for a second compatible display.	–
USB hub detail
USB hub detail	Two standard USB 3.0 downstream ports and two USB 3.0 downstream ports with BC 1.2 charging at up to 2 A.	4 x USB-A 10Gbps (rear); pop-out quick access module with 2 x USB-C 10Gbps (27 W) and 1 x USB-A 10Gbps with BC1.2 charging
Picture by picture
Picture by picture	–	Picture by Picture with Screen Partition (internal MST) and Picture in Picture; USB KVM for up to four PCs, Auto KVM
Speaker detail
Speaker detail	–	2 x 9 W
Audio out
Audio out	3.5 mm audio line output	–
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel, pivot (better)	Height, tilt, swivel
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	–	18.23 kg
Height adjustment
Height adjustment	130 mm	90 mm
Tilt
Tilt	-5° to 21°	-5° to 10°
Swivel
Swivel	-40° to 40°	-20° to 20°
Pivot
Pivot	–	No pivot; slant -2° to 2°
VESA pattern
VESA pattern	100 × 100 mm	100 x 100 mm, 200 x 100 mm, 200 x 200 mm
Size with stand
Size with stand	612.2 × 180 × 390.2–520.2 mm (W × D × H)	1223.32 x 255 x 576.79–666.79 mm (W x D x H)
Size without stand
Size without stand	612.2 × 39 × 355 mm (W × D × H)	1223.32 x 111.94 x 529.05 mm (W x D x H)
Weight without stand
Weight without stand	4.19 kg	12.95 kg
Controls
Controls	–	Joystick; power and OSD button lock
Colours
Colours	–	Platinum Silver
Power and support
Power use
Power use	22.6 W on, 0.2 W standby, 0.2 W off, 160 W maximum	63.6 W on mode, 0.5 W standby, 2.0 W networked standby, 0.3 W off, 430 W maximum
Energy class
Energy class	–	G
Power supply
Power supply	100–240 V AC, 50–60 Hz	100–240 VAC, 50/60 Hz, 5.5 A (maximum)
Software
Software	Dell Display Manager	Dell Display and Peripheral Manager (Easy Arrange, KVM), Dell Color Management, Dell Device Management Console
Certifications
Certifications	ENERGY STAR and TCO Certified; EPEAT registration varies by country	ENERGY STAR 8.0, EPEAT Gold with Climate+, TCO Certified 10.0 and TCO Certified Edge, TÜV Rheinland Eye Comfort 3.0 (5 star)
Warranty
Warranty	–	3 years with Advanced Exchange Service and Premium Panel Exchange (UK)
In the box
In the box	Stand, DisplayPort cable and USB-C cable	Stand (not with the WOST version), power cable, DisplayPort 1.4 cable (1.8 m), HDMI 2.1 cable (1.8 m), USB-C to USB-A 10Gbps cable (1 m), Thunderbolt 4 40Gbps cable (2 m)