Dell Thunderbolt U4025QW User Manual page 59

Make sure to set Thunderbolt
are in an initially OFF power state, by pressing the power button on Monitor 1 or
Monitor 2 will turn ON the PC, Monitor 1, and Monitor 2.
Pressing power button on Monitor 1 or 2
4 to On in Off Mode. While the PC and two monitors
TM
Thunderbolt™ 4
port 1
Thunderbolt™ 4
port 2
Monitor 1
Monitor 2
Thunderbolt™ 4
port 1
Thunderbolt™ 4
port 2
Setting up the monitor
Thunderbolt 4
TM
upstream
Thunderbolt TM 4
upstream
Thunderbolt
upstream
Monitor 1
Thunderbolt
upstream
Monitor 2
TM 4
TM 4
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