3 port Input 1 port output: 3 Port input connect with your HDMI devices like:TV ,Computer ,Laptop , 1Port Output connect with your HDMI Screen ,Like:HDMI Monitor ,Projector. HD Audio and HDCP Compliant:No distortion of audio or video, no delay in signal transference. Support 3D, 4K x 2K resolution and HD audio. Please use standard HDMI 2.0 Cables to connect your HDMI Source (like XBox, PS4) with Display and HDMI switch, if the resolution of your HDMI Source support 4K (4096*2160). No external driver is required, just simply press the button on the HDMI box to make shift of input or output source. With 2 LED indicators. This HDMI splitter cable is for connecting one HDMI compatible device (Xbox,Blueray,DVD players,for PS3) to two visual output devises.