HDMI 2.1 Splitter 1 in 2 Out - Mirror Screen Only: Easily duplicate one HDMI source to two displays simultaneously. Enjoy the same 8K UHD content on both your TV and projector without signal loss. (Note: This splitter does not support extended display.) Not Support: 1.Not Extended Screen,it not extend different content to two monitors; 2.Not a switcher,not support connect two HDMI input signal to one monitor;3.Not a audio extractor, not support connect to any audio device like sound-bar;4.Not support ARC/eARC 8K UHD Resolution: HDMI monitor splitter support 8K@60Hz, 4K@120Hz/144Hz/60Hz, 1080P@240Hz/120Hz, 3D, HDR10, Dobly Vision, Dobly Armos, HDR10+, RGB 4:4:4, VRR ALLM. Backward compatible with 1080i, 720P, 576P; No lag, or flash. For 8K@60Hz,use HDMI 2.1(AWG 30)cableinput/output length9.8ft; for 4K@120Hz/4K@144Hz/ 1080P@240Hz /1080P@120Hz, use HDMI 2.1(AWG 30)input length16.4ft,output length32.8ft;for 4K@60Hz /1080P@60Hz, use HDMI 2.0(AWG 26),input length16.4ft,output length32.8ft Wi