i-tec Travel Dock 4K HDMI Guide D'instructions Et Mode D'emploi page 7

Control the monitor in Windows 10
USING IN MAC OS X
After connecting the monitor, the screen on your Mac will glimmer, which is a standard condition, after
stabilization it is possible to perform standard setting of the monitor here: System Preferences-Displays:
Click on Arrangement and in the default mode (Extended desktop) click on the new monitor and drag it as
necessary vis-à-vis the Mac monitor. If you select Mirror displays the mode will change to Mirror (the
resolution of the monitors will be automatically adjusted according to their parameters and the highest
possible resolution will be set on both monitors). By cancelling the Mirror displays option you will return to
the Extended desktop mode.