This USB-C multiport adapter with HDMI/VGA lets you add vital connections to your MacBook or Windows laptop, through a single USB-C port. The adapter features a presentation mode switch, that when activated ensures the computer will not go into sleep standby or hibernation.For maximum productivity, connect your USB-C or Thunderbolt 3 laptop to a 4K 30Hz monitor, using this USB-C to 4K HDMI / 1080p VGA multiport adapter. You can also connect to an HDMI projector or TV in a boardroom or other meeting space, to deliver presentations on a shared screen.When you turn on this switch, the USB-C to HDMI adapter prevents your computer from launching its screen saver, going to sleep, or entering power save mode while presenting. Plus, the built-in MicroSD card reader can be used as external storage - ideal for storing & delivering presentations at boardroom/conference room meetings.Left Switch Position: Enables Presentation ModeRight Switch Position: Disables Presentation ModeThe USB-C adapter l