microware TV-out Cable HDMI Splitter 1 in 2 Out, links HDMI Splitter 1 to 2 Amplifier for Full HD 1080P/ 3D/ 4K Come with High Speed HDMI Cable,USB Cord(1 Source onto 2 Displays)  (Black, For TV)

1 Input to 2 Output It allows you to be able to display on 2 screens with only 1 HDMI Source. This unit is not a switcher, it will not let you screen multiple HDMI source on 1 TV. Please search B07T2WSY3D on Amazon for HDMI Switcher. Note: it displays the lower resolution of two device:For example if one of your display resolution is 720p,and one of another is 1080p, when the output signal is 1080p,it gonna send the same signal to both displays,what you will be going to realize that the maxinum resolution that send to both displays are 720p even though it can accept 1080p..