Dell Thunderbolt U4025QW User Manual

Setting up the monitor | 57
Connecting the monitor for Thunderbolt
TM
daisy chain function
A PC is connected to two monitors in an initially off power state, and the PC power
state is synchronized with the Monitor 1 power button. When you press the Monitor 1
or PC power button, both the Monitor 1 and PC turn on. Meanwhile the Monitor 2 will
remain off. You need to manually press the power button on Monitor 2 to turn it on.
System power state (ON)
Monitor 1Monitor 2
Thunderbolt
TM
4
upstream
Thunderbolt
TM
4
downstream
Thunderbolt
TM
4
upstream
Similarly, a PC is connected to two monitors in an initially on power state, and the PC
system power state is synchronized with the Monitor 1 power button. When you press
the Monitor 1 or PC power button, both the Monitor 1 and PC turn off. Meanwhile the
Monitor 2 will be in Standby mode. You need to manually press the power button on
Monitor 2 to turn it off.
System power state (ON)
Monitor 1Monitor 2
Thunderbolt
TM
4
upstream
Thunderbolt
TM
4
downstream
Thunderbolt
TM
4
upstream
Going into Standby mode...

Dell Thunderbolt U4025QW Specifications

General

Screen Size	40 inches
Aspect Ratio	21:9
Panel Type	IPS Black
Refresh Rate	60 Hz
Color Support	1.07 billion colors
Curvature	2500R
VESA Mount	100 x 100 mm
KVM Switch	Yes
Resolution	5120 x 2160
Brightness	300 cd/m²
Contrast Ratio	1000:1
Response Time	5 ms
Color Gamut	98% DCI-P3
Ports	RJ45
Speakers	2 x 9W
Built-in Microphone	Yes
Stand Adjustability	Height, Tilt, Swivel
Weight (with stand)	14.4 kg