Dell U4919DW UltraSharp Monitor Users Guide - Page 56

Operating the Monitor, USB Selection, upstream port is active.

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USB Selection Allows you to set the USB upstream port for the input signals (DP, HDMI 1, and HDMI 2), thus the monitor's USB downstream port (eg. keyboard and mouse) can be used by the current input signals when you connect a computer to either one of the upstream ports. When you use only one upstream port, the connected upstream port is active. NOTE: To prevent data damage or loss, before changing USB upstream ports, make sure that NO USB storage devices are in use by the computer connected to the monitor's USB upstream port. 56 │ Operating the Monitor

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56± ±
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Operating the Monitor
USB Selection
Allows you to set the USB upstream port for the input
signals (DP, HDMI 1, and HDMI 2), thus the monitor's
USB downstream port (eg. keyboard and mouse) can be
used by the current input signals when you connect a
computer to either one of the upstream ports.
When you use only one upstream port, the connected
upstream port is active.
NOTE:
To prevent data damage or loss, before
changing USB upstream ports, make sure that NO USB
storage devices are in use by the computer connected
to the monitor’s USB upstream port.