Dell U4021QW User Manual page 69

3. Ensure that the USB ports and the video inputs are paired accordingly.
NOTE: For Thunderbolt
required.
UltraSharp 40 Monitor
Brightness/Contrast
Input Source Thunderbolt (90W)
Color DP
Display HDMI 1
HDMI 2
PIP/PBP
Auto Select
USB
Audio Auto Select for Thunderbolt
Menu Rename Inputs
Personalize
Reset Input Source
Others
UltraSharp 40 Monitor
Brightness/Contrast
Input Source
Color
Display
DP assign to
PIP/PBP
HDMI 1 assign to
USB
HDMI 2 assign to
Audio
Menu
Personalize
Others
(90 W) connection, there is no further setting
TM
Prompt for Multiple Inputs
Yes
No
USB-B
USB-B
USB-B
Operating the monitor
Exit
Exit
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