ViewSonic VP2768 User Manual page 20

* Please do not connect the DP out on the monitor to the
DisplayPort or mini DP connector on the computer. DP out is
used for daisy chain connection (Explained in section D)
C. USB Cable
Connect the B type connector of USB cable to the USB 3.0
upstream port on the rear of the monitor. And connect the A
type connector of USB cable to the USB downstream port on the
computer.
A type
B type
*This picture is for reference only
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