[Bidirectional -Compatible Switcher]This -Compatible Switch offer 3 Ports, so you could connect two sources to one display, or connect one source to toggle between two displays, With 2 LED indicators, you can easily know which port is active from the LED light (Only 1 of the 2 displays works at a time) [4K High Resolution]Support 4k@120Hz and backward compatible. Enjoy 3D visual and experience immersive scenery as cinema. Note: please use standard -Compatible 2.1 Cable, the total length of -Compatible cable is no more than 3 meter if you need to get vivid 4K video.(-Compatible Cable is not included.) [Broad Compatibility] -Compatible Splitter Switcher compatible for most standard -Compatible port devices. Support Input: computer, for , for , for / for ,Blu-Ray DVD player etc. Output: HD-Ready or Full HD , monitors, projectors etc. [No External Power Needed] This 4k -Compatible Switch Box is easy to use, no external power is required, just simply the button on the -Compatible switch box to make shift of input or output source. Color: Deep Space Grey Material: Aluminum Alloy Package Contents: 1 * -Compatible Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.