Using The Hdmi-In Port - ASROCK Z87 Extreme4 User Manual

2.9 Using the HDMI-In Port

The HDMI-In port on this motherboard lets you easily switch between PC screen
(on-board VGA) and external video source on the same monitor. This function
saves you the hassle of switching cables back and forth when you want to display
the screen of another device, such as smartphone, tablet, camcorder, DVD player, or
another PC, onto the PC monitor.
Another useful feature of this function is that external video source can be viewed
even when your PC is in standby mode or powered off. For example, you can play
smartphone games or watch tablet video on your PC screen.
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