【Dual 4K Matrix Multiview Output】This HDMI matrix allows you to connect up to 4 high-definition sources to 2 HDMI display terminals. Output A offers a Multiview function, providing 6 viewing modes: 4 equal screen, dual side-by-side, dual up and down, PIP, full screen, and 1 big with 3 small mode. Output B can either replicate Output A or independently display any 1 of 4 sources input screen. Output A is equipped with SPDIF(5.1CH) and 3.5mm(2.0CH) audio extractor interface. | 【4 Port Seamless Switch】Under the same resolution, this HDMI multiviewer in Full screen mode supports seamless switching between four HDMI input sources, no point in waiting 5-8s for switching. | 【4K@30Hz Resolutions】Support 4K@30Hz, 1080p, 720p, 3D, and compatible with HDCP 1.4 & HDCP 1.3. Output A support scaler up and down between 1080p, 1600p, and 4K@30hz. | 【Broad Compatibility】PORTTA HDMI Matrix Switch 4K is compatible with most standard HDMI devices. Input: Security Camera, PC, PS4, PS4 Pro, Xbox, Nintendo Switch, Blu-Ray Player, Chromecast, Computer, etc. Output: HDTV, Projector, Monitor, etc. | 【What You Get】HDMI Multiviewer x1, IR Remote x1, DC Power adapter x1, Mounting Ears x 2, User Manual x1 with hassle-free 2-year warranty and lifetime technical support. Feel free to reach our friendly customer service if you have any questions.