ZeleSouris 1080P/60Hz 3D HDMI 4x1 Quad Multi-viewer Switcher Splitter with Seamless switch and IR Remote Allows 5 Display Modes Show on Screent With IR Remote Controler-Black

Sometimes I work with multiple HDMI video sources, but I don't want to have a bank of TVs at my desk, but I do want to have multiple sources active concurrently and be able to do side-by-side comparisons, switch between HDMI sources and cycle the HDMI sources. This unit is perfect for that, you can have a mosaic-like view of multiple HDMI sources on a single monitor or TV. This unit paid for itself on it's first outing where I was comparing the behaviour of two HDMI video feeds side by side. Very pleased.

Does exactly what I wanted. It allows 4 separate HDMI sources to be shown at the same time on the same screen, with a variety of layout options. In my case, I've got a simple 4-way split. PIP is also possible - though obviously audio is only ever from 1 particular input, which you can select.The remote is bit fiddly (tough small buttons) and VERY directional, but aside from that, no complaints.

To monitor the feeds out of the cameras (and avoid spending £200 extra on the Blackmagic Box that does it) and it works perfectly. (If interested, the setup is Camera HDMI out--> HDMI splitter --> One to the ATEM switching box, one to this.) Not a super pro solution, but also not a bank breaking one.

Just plugged it in and works fine and hasn't given any problems. Very normally have it in 4 equal view mode, but remote to change to view one feed full screen is useful too. We're using it in a church livestream situation, to view cameras and the livestream feed itself.

One of the 3 I bought didn't work and cant get help from seller

Very pleased with this unit. Simple plug and play with the option of a 1920/1080 or 720 output. The option to have different screen configurations is not very useful. Solidly built unit which worked straight out of the box. Good value for money paid.