Copy the 1 source to 4 identical displays: 1 in 4 out HDMI splitter 4kx2k @30hz support duplicate the same content from 1 input source to 4 display devices. Multi HDMI port splitter for TV don't support extended mode, so it can't support displaying different content on 4 display devices

Not Support: 

1.Not Extended, it not extend different content to 4 monitors; 

2. Not a switcher,not support connect 4 HDMI input signal to 1 monitor; 

3. Not a audio extractor, not support connect to any audio device like sound-bar; 4. Not support ARC/eARC 1x4 HDMI Splitter connection process: This avedio links 1x4 HDMI splitter 1 in 4 out has 1 HDMI input port, 4 HDMI output port, one USB power port. 

It's plug and play, just connect the HDMI signal source device like blue-ray player, connect 4 HDMI display devices like monitor, TV, projector by HDMI cable, then plug the attached USB power cable to supply power to make sure work stable. 

Then it will can duplicate one HDMI input signal to 4 HDMI displays, transmit video without any loss, delay 4Kx2K UHD High Resolution: 4 way HDMI splitter resolution can up to 4K(3840x2160P)@30Hz, backward compatible with 3D, 1080P@60Hz, 1080i@60Hz, 720P@60Hz, 480P@60Hz, 480i@60Hz etc. Support HDMI1.4, HDCP 1.4. 

Audio format support DTS-HD/ Dobly-true HD/ DTS/ Dobly-AC3, DSD.

For the 4K resolution, the frequency can’t exceed 30Hz. NOT support HDCP 2.2. It can output 1080P 60hz signal up to 64 ft( input 32ft+output 32ft); it also can transmit 4K 30Hz signal up to 32 ft ( input 16ft+output 16ft)

Widely compatible: HDMI mirror splitter is compatible with many HDMI devices. For HDMI output port: drawing tablet, monitors, projectors, HD TVs, capture card, VR etc.