J-Tech Digital 4k 2x2 4K60Hz HDMI Video Wall Controller Multiviewer Seamless Switch Matrix | 4K60Hz Input and 4K30Hz Output, Supports HDMI, HDCP, RS-232, LAN, Downscale & Upscale, Web Control

great price and works well, very simple to use.

Second edit: I contacted the company about the problem and they were going to immediately send me a new one and I was supposed to get it by a certain date. Days and it was never sent out. Then they were going to overnight it. I didn’t get it overnight. I got it, three days later than what they promised.. I installed the new one today. It worked on one TV with a picture, but I didn’t even bother with a second TV to see if I got a picture because the sound didn’t work, I called them again today.. The one that I received today wasn’t the same as the one that I was trying to replace it was from a sister company. They are going to try to replace it, but I’m not sure which one if I’m getting from Service or the sister company which had a plug that was too big for my power strip, and I really had to waste plug space because of it. They can’t overnight it The second replacement I’m not really very happy with his company. They’re going to send it by ground. Edit. I purchased this May 17, 2024 and today is August 4, 2024 and it died today. I’m very unhappy. I hope it has a warranty longer than 2 1/2 months, And I hope it can be replaced quickly. I purchased another highly rated unit. It didn’t work at all and their customer service was nonexistent. This unit worked perfectly. It was easy to set up. I have a TV and cable box in my living room, and my bedroom shares the same wall, it just seemed crazy to pay for another Cable box. I bought a long HDMI cable and put the splitter in.. I bought a splitter along time ago, that eventually died, so I could watch TV in my bedroom. I can change the channel with the remote app in my phone. If I want to watch TV in the bedroom while I’m working around the house as well as in the living room, I can do that. I also can watch TV in bed and have the TV in the living room turned off. It’s great and works perfectly!

really a great product not a passive splitter with signal loss but a active splitter that works with 0 separation

Debated on 3 or 4 stars, but I've got it working now, and it is working well. It was however a pain to set up and get operational. The instructions in the manual (provided on a USB drive) are lacking essential information. First, the displays for the video wall are 1-top left, 2-top right, 3-bottom left, 4-bottom right (it doesn't tell you that anyplace, and it is critical information to get the video wall working). Second, my top two monitors are mounted upside down (to minimize bezel thickness), and I had endless problems getting the video flip/inversion to "stick". The solution I finally found was to do the flip in the switch, not the PC, get the video wall working, then save the configuration as a preset. Input 1 to video wall=preset 1, input 2=preset 2, 3=preset 3, 4=preset 4, normal operation = preset 5. So now I can invoke video wall from any input, and revert to 4 separate screens when desired (all of my inputs to the matrix switch are from a PC). Notable disappointment: The Multi-view options only work on a single output, and the other outputs are blank when using that capability. You can't do multi-view on one output with any other output on. If this were of high importance to me, I would have knocked off another star, but it isn't something I expect to use. Auto scaling did not work well for me, I ended up hard setting my input and output resolutions. I've got 5 video outputs from my PC, and they are not all the same resolution, so I have to resort to the lowest common resolution for video wall to work. Nor are my monitors all the same resolution (but at least the 4 in the video wall are the same size). So to summarize in a sentence: I am satisfied with the product and it will serve my purposes, but it was very difficult to set up. Once I got all the presets programmed to do what I wanted, it is easy to use, but it took about ten hours to get it set up the way I wanted.

So let me set this review up with the setup that this product was implemented into as it is not a A to B simple run of the mill setup. I have a NVIDIA 780 video card running from my pc going to 3 computer monitors in an expanded desktop display. I also have a Sony 55W800B television that I want to mirror my main middle pc monitor while receiving sound and video and still keep the extended display going. So 1 hdmi cable is going to my left most monitor, a dvi-d cable going to my right most monitor, and an hdmi cable going to the input of this splitter. On the splitter itself, output A goes to my middle main pc monitor and output B goes to my sony tv (input 4) via hdmi. The results: Perfection. All video and sound is passed through (of what should be on my middle monitor) to the middle monitor itself and the tv. I use this mainly for 2 purposes - steam gaming on the big screen and to play movie files from my hard drive on the big screen with ease. ALSO this passes HDCP 1.0/1.1/1.2 signals which is extremely important (and something that is not featured on most of the other $100 and lower hdmi splitters). Also 3d passthrough works perfectly in my tests also! I have been running this device for about 2 weeks now with no issue. I cannot comment on the longevity of this device in all honesty, but based on other reviews, it holds up extremely well in the long run (and the warranty covers the few duds out there). As a Network and Electronic Engineer by profession in my career, I am a fan of J-Tech and believe in their products. I am extremely impressed with the build quality and feature set - and it JUST WORKS! This is what I like to see in a product. One more thing to note is that this is encased in a metal box and not plastic which is better when heat is a concern. Excellent choice. I would love to test their other products out in the various setups I have in the future.

HDMI splitters are critical, esp. if you're hosting a Super Bowl party and need your HD 720 p projector AND LCD TV working in parallel off of one input device. So I went with the J-Tech, based on reviews. I'm fully aware of the "hand-shaking" approach, where powering the splitter, plugging input and output devices, and powering the input and output devices should be done in a specific sequence in order to assure a) great splitting of the video and b) splitting of the audio. Well, going by this sequence (1. Power up splitter, 2. Plug in input device, 3. Plug in one of the output devices, 4. Plug in the other output device, 5. Power on input device, 6. Power on output devices), it worked like a charm. I've also done the following sequence and everything worked fine: 1. Plug in input device, 2. Plug in one of the output devices, 3. Plug in the other output device, 4. Power on the splitter, 5. Power on input device, 6. Power on output devices. BEAR IN MIND that the instructions oversimplify, so mind the "hand-shaking" for the order of inputting devices and powering stuff on. But here's the kicker... day of the Super Bowl THE SOUND WENT KAPUT. The video split, but no audio coming out of the TV OR from the projector. NO AUDIO FROM THE OUTPUT DEVICES. Luckily, that week as a backup, I bought the Sewell Direct splitter (http://www.amazon.com/gp/product/B007WR0CHU/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1). It works with one hiccup: No matter HOW you do the handshake (and I've heard that it could be because of splitting between a Sony LCD TV and HD projector), audio will ONLY come out of the TV and not out of the projector. Whatever, I could live with that. I used this same Sewell splitter last year for the Super Bowl and had the same result (split the video, but not the audio). But after hooking the TV to a sound system, it made no difference. So... 1) Why the J-Tech just stopped working by not providing ANY audio from any output device on the 4th day, I have no idea. 2) The lesser of the two evils would be the Sewell, because at least I'm still getting audio out of the TV, while getting great picture quality on the TV AND HD projector 3) In case you're wondering, my input device was my FiOS box. Just FYI, the Sewell works great with a Roku as the input device too. 4) A few weeks in, Sewell is still working as mentioned before. Agreed, it stinks that the audio doesn't split. But best to have audio from the TV and no audio from the projector as opposed to NO AUDIO AT ALL.

This works exactly as described. I have it hooked up to a 1080P TV and a 4K TV and I transmit the signal from my Xbox via HDMI to each TV simultaneously . No switching required. Highly recommended. I have one TV as my couch TV and the other for a sim racing setup. This is neat how it can downscale the 4K signal to work on my 1080P tv without downgrading my 4K TV signals as other similar adapters do.

Like a number of people, I suspect, I bought this in an attempt to compensate for the removal of the optical audio out on the latest-model Apple TV. With older models, I had optical going to my receiver and HDMI to the television. This setup let me get Apple TV audio through my TV or through my receiver, depending on my needs. The current Apple TV box no longer has the optical out. I tried an HDMI-optical splitter box but the audio out from that was intermittent and it went back. Since I had a free HDMI input on my receiver, I thought I would try this J-Tech box next. HDMI from Apple TV to the J-Tech; and then one HDMI from J-Tech to TV and one HDMI from J-Tech to receiver. This arrangement worked immediately and consistently, and I was happy -- until... The fatal flaw. The whole point of running audio to my receiver is to play back surround sound from videos on the Apple TV that have it. Unfortunately, the J-Tech box only passes stereo audio out, not multichannel surround audio. So while it does work to least let me play Apple TV audio through my receiver, it can't/won't pass the original audio signal without stripping it down to stereo. I don't know whether this is a limitation of the box or of the HDMI specification, but it doesn't matter: the J-Tech does not pass through the original signal passed into it, which makes it a deeply flawed product. Three stars for at least reliably offering basic HDMI splitting. If all you care about is video and stereo audio, this will work fine. But it your needs are like mine, you will be disappointed.