About this item IMPORTANT NOTED:1.This is not an HDMI Switch; it CAN'T support multiple input devices output to one TV. IT'S an HDMI SPLITTER. Only supports one HDMI input device output to 2 TVs. 2.This HDMI Splitter CAN'T support extended screen, ONLY can mirror or duplicate one signal to 2 TVs, displaying the same contents. 3.Please ensure your input & output devices and HDMI cable support 4K resolution; otherwise, it can display 4K quality picture. 4K HDMI Splitter 1 in 2 out: This HDMI Splitter allows 2 monitors to share 1 HDMI source at 4K HD video quality. (NOTE: Just mirror/duplicate, cannot extend; outputs the same display into 2 monitors) Resolution: HDMI Splitter dual monitors support 4KX2K@30HZ, 1080p@60Hz, 720p@60Hz frequency rate at 10.2 Gbps. Compatible with HDMI 1.4/1.3/1.2, HDCP 1.4. Plug and play. This HDMI splitter supports a maximum resolution of 4K30Hz; it cannot support 8K Transmission: This 4K 1x2 HDMI splitter supports distances up to 110ft (50ft from splitter to