Lenovo T24t-20 23.8" 16:9 Multi-Touch IPS Display - Manual (Page 13)

7. Connect one end of the USB cable to the USB downstream terminal of the monitor, and
connect the other end of the USB cable to an appropriate USB port on your device.
Note: The USB downstream port does not provide power while the monitor switch is
off.
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If there are any * tag, you can consult the comments on page on page 1-2 .
Chapter 1.Getting started 1-8