Description of HDMI Splitter This HDMI Switch Splitter 2 x 1/1 x 2 is suitable for most devices with standard HDMI interface. Input: computer, set-top box, etc. Output: TV, Projector, LCD display, etc. Use as a HDMI switch, you can connect 2 HDMI sources to 1 HDMI display. While use as a splitter, you can connect 1 HDMI source to toggle between 2 displays. No External Power Required. It is widely used in home video, conference demonstration and multimedia teaching.  Features 1. The HDMI Splitter & Switch 4K, Bi-directional. 2. With EDID emulation. 3. 4K Ultra HD, resolution up to 3840*2160@30Hz with 3D visual effect. 4. Audio & Video Sync, DTS, DSD, DOLBY AC3 5.1 audio format supported. 5. Button switch, easy to operate, No external power required. 6. LED indicator light, be clear of working status. 7. Precision ABS material with sleek matte finish.