HDMI Multiviewer Switch 4x1, Quad Seamless Switcher 4 in 1 Out with IR Remote Control, Support 4K Full HD and 5 Display Modes for Security Camera, Gaming Consoles

Audio only outputs 1 hdmi input at a time. It does not do simultaneous audio output. Otherwise a great device, simple and functional. Runs via 5V usbc. Also if an input is unused, it displays vertical bars of colors, not just a black screen, God forbid you only use 3 inputs, it’s very annoying to have on screen.

Why did you pick this product vs others?: Does the job

I bought this input switcher with the intent of using it for gaming from two consoles onto a projector/ big tv. I wanted one that could push 4k. I will be honest. it is NOT good enough for gaming. But I don't think there is a product out there that can actually do it, unfortunately. That doesn't take away points in my opinion, because I'm sure it was never meant for that. I still like the product because its excellent for watching multiple sports games on the big screen with friends over, make my home feel like a sports bar. but the resolution is blurrier than a true 4k (more like 1080p even in 4k mode) and there is some noticeable lag when gaming on it. so I do not use it for work on my 4k work monitor or for gaming. but as a 4 input multiviewer/switch, it is AWESOME for the price.

Tenía otra espectativa sobre su funcionamiento, pero se puede usar para algunas cosas

I wanted the option to view my cameras and watch TV while I do hair with sound and this did what I needed it to do

I got this to view 4 Windows PC 1920x1080 (FHD) screens on a single 50" 4k (UHD) TV that I use as a computer display. I use the 4 PCs to build different Windows systems to deploy to PCs in a public library for patron (public) use. This device fails pretty badly, with most text being unreadable. A lot of resolution is lost, as if the FHD inputs are being merged into a single FHD frame and then upscaled to 4k. Pleas see the included pictures, then run very far, very quickly away from this product.

Did not work at all. HDMI is plug and pray b/c of HDCP encryption issues but don't have a product that doesn't work as advertised. If it requires specific equipment, say so. Returned it.

Just needed option to watch 2 things at once with out having the other screens visible