This HDMI switch by Delock is a manual bidirectional switch for connecting different devices with HDMI port. This switch offers two different applications. 1.Up to 2 devices can be connected to a monitor, TV or projector. AtThe push of a button,The device that is displayed onThe screen can be selected.2.An HDMI d evice can be connected to up to 2 screens.The screen on whichThe signal is displayed can be selected atThe touch of a button. Simultaneous output to multiple screens is not possible.