Dell P2723QE 27" 4K UHD USB Type-C Hub Monitor - Manual (Page 41)

Setting up the monitor │ 41
Ensure to set USB-C Charging 90 W to On in Off Mode . When the PC and two
monitors are in an initial OFF power state, pressing the power button on Monitor 1 or
Monitor 2 will turn ON the PC, Monitor 1, and Monitor 2.
Monitor 1
System power state (OFF)
USB Type-C
Port 1
Monitor 2
USB Type-C
Port 2
USB Type-C
USB Type-C
Pressing power button on Monitor 1 or 2
Monitor 1
System power state (ON)
USB Type-C
Port 1
Monitor 2
USB Type-C
Port 2
USB Type-C
USB Type-C