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Robert A
Reviewed in the United States on February 5, 2025
Very easy to install and worked immediately
Kevin B
Reviewed in the United Kingdom on February 28, 2025
Great product. Worked faultlessly first time. I wanted to improve the signal up to my bedroom TV from my Sky + box which had used coax cable and a magic eye for years.With the coax cable the upstairs TV always had an annoying buzz in the background and the TV image was always just a little fuzzy and slightly offset so you lost part of 2 edges. No amount of tweaking the output RF channel or the TV would eliminate that.This box means I now have crystal clear HD image transferred upstairs, perfect sound, control ver the Sky + box and I am also set up for when I get my new Sky Q box in a couple of weeks which does not have the RF out and in order to get the TV in another room, Sky was insisting I needed to pay £15 a month for a multi room subscription!Would definitely recommend this setup.
Customer
Reviewed in the United States on January 18, 2025
Didn’t work with the first cable I tried, but worked with the second one. Somehow, it was able to transfer 4K60 video in a way that looked perfect to my eye. Couldn’t see any odd compression artifacts or loss in signal, which is pretty interesting considering the cables it accepts. Test deployment used a CAT7 cable, but that still isn’t specced for more than 10Gbps, less than HDMI 2.0’s 18Gbps. Final deployment will use CAT5e, but I have high hopes for it.
Greg Hoshaw
Reviewed in the United States on August 13, 2024
Great product for the price
Sean
Reviewed in the United Kingdom on December 9, 2024
I have this setup in my man cave. I have my Laserdisc player plugged into and upscaler that was just feeding the HDTV next to it. This device has allowed me to keep that feed while also send a feed to my projector on the other side of my room. Works fantastically well. No noticable loss in picture or audio quality.Setup is easy. You plug your HDMI device into the sender box. That then has an HDMI out so you can pass through to a local display. You then connect the sender to the receiver box using a normal network cable. I used a 30m cable and I think it supports up to 50m. You get one power supply that can be plugged into either end as power is then sent over the network cable to power the other device. I tested plugging the power into each end and ended up plugging into the receiver due to there being a spare plug there. Super convenient being able to choose and not needing power at both ends.Thoroughly recommended. A really useful bit of kit.
M. Pritchard
Reviewed in the United Kingdom on December 26, 2024
This system consists of two metal-cased units; a transmitter which connects to the source device by HDMI cable and can also feed back out to a local display, and a receiver which just has the HDMI output. The two get connected together by a standard RJ45 Ethernet cable, whether that's a long patch cable or part of a building's data cabling.The units also have an infra-red transmitter (which plugs into the TX port on the transmitter unit) and a receiver (which plugs into the RX port on the receiver unit) to allow infra-red remote signals to be sent down the cable to the far end from the display back to the source device (which could for example be a set-top box or disc player).The units come with a 12 volt 1 amp power supply which can be plugged in at whichever end is the most convenient; the one supply will power both ends over the cable.A good point is that the integrated HDMI splitter doesn't seem to care about HDCP. A monitor which normally trips HDCP errors will work perfectly well either plugged into the passthrough port or into the far end.How well the pair works will depend very much on the cabling between them. A poor quality but shielded 60 metre cable resulted in the devices not linking up at all. A shorter (but as yet unknown quality) cable worked fine.Note that due to Microsoft's poor display management, if using these to connect a 4K-capable computer to a non-4K monitor, Windows 11 will output a 4K signal (resulting in a blank screen) regardless of what video resolution you choose. This is a flaw of Windows, not the extender, but if this is likely to be a problem you'll need to get an extender with EDID cloning capability.
adhesiveduck
Reviewed in the United Kingdom on December 25, 2024
Definitely a very well built set of units but what made this an absolute 5* was the responsive and helpful customer support.When I tried to set this up to test on the bench before installing I was unable to get it to work - despite using different devices, ethernet cables and hdmi cables the units were showing power but no pictures or sound were being transmitted. At this point I reached out to CENMATE support via Amazon. They responded to my ticket very quickly (under 12 hours) and came back with a series of things to do to try and pinpoint the issue.I followed the instructions (see below) and although I am not certain which instruction was the one that got everything working it now functions flawlessly.Trouble shooting from CENMATE1. Check whether the TX loop-out output is normal2. Check the network cable is less than 50m for 4k 60 output3. Connect the RX output display to the TX ring out to see if it is normal.4. Adjust the settings to 1080p to confirm if it i normal.5. Check the equipment and monitor frequencyI intend to use this connected to an outdoor monitor so have now tested using different ethernet cables up to 30 metres in length - the picture quality and sound is flawless although initially I did notice a purple flicker but this has now disappeared.It does also come with an IRBLASTER to allow remote control of a source device - this works well but thought needs to be given on installation of where to place the sender and receiver to make sure the receiver has line of sight of the source device and the sender is somewhere it can be pointed at easily.It is powered by a 12V adapter when can be connected to either unit so it can be placed where it is most conveient.Whilst this is not a cheap solution it is very effective and I feel reasonable value for money.The outstanding thing for me was the customer support they responded very quickly and effectively providing a solution and answering my additional questions.
DY Smart Solutions
Reviewed in the United States on December 23, 2024
Testing this extender and other brands to make sure there aren’t any random audio or video cut offs “hiccups”. So far out of 4 brands this is the only one that works 100% of the time. I’ll most likely replace all my other values with this one.
Edward Holmes
Reviewed in the United Kingdom on November 26, 2024
The build quality of these two boxes is good, and all ports are clearly labelled. A 12V power supply is included, along with an IR receiver and transmitter, that should allow you to control a device, such as a DVD player, in a remote location. It uses PoE (power over Ethernet)1, so copper Ethernet cables are preferable to CCA (copper coated aluminium), especially over longer distances.I tested this HDMI Extender, using a 10 metre Cat 6 Ethernet cable, connecting from a laptop in my kitchen, to the 4K TV in my lounge. The only way that I could get it to work reliably, was to provide power at the receiver end. and use it with my laptop, set to ‘duplicate displays’. I wasn’t able to monitor the output by connecting the ‘HDMI OUT’ to the HD TV in my kitchen, even though the TV detected that it was connected to a source.So yes, it does work, and would be fine for duplicating output (perhaps via an HDMI splitter), to a monitor/TV or projector, in a remote location.
Smitty
Reviewed in the United States on November 17, 2024
I am using this extender to replace an older extender from a second zone on a Yamaha receiver to a kitchen in a different part of the home. It seems to be sensitive to the signal fed to the Transmitter and can intermittently shut off signal temporarily to the far end Receiver. Using a top Yamaha receiver, I can send a Roku signal to the kitchen and it works great. However, if I use the same Yamaha receiver and send a Pandora signal to the kitchen, it will intermittently shut down for about 5 seconds and then come back on. This happens over and over about 3 to 4 minutes between outages. Really strange! I though at first that it was the power supply in the kitchen TV that was going out. After a bit of troubleshooting, I've narrowed it down to the extender. It seems to be a difference in the signal between Pandora (which is built into the Yamaha receiver) and the Roku (which is an HDMI input on the Yamaha) creating the issue. The original extender that this one is replacing had no problem with Pandora from the Yamaha receiver so I'm not sure what to think. I have gotten around this issue by using Pandora on the Roku instead of using the Pandora on the Yamaha receiver. Other than that, it works great. I do really like the Loop Out to a local TV - that works great - even though I'm using a 4K TV in the kitchen and a 1080P TV connected to the Loop Out - very nice! The quality of video and the audio is excellent and it is really just 'plug-and-play' as long as you have a good Ethernet cable from the Transmitter to the Receiver end - with good connections!
xanders
Reviewed in the United States on November 13, 2024
Maybe I got a bad one, maybe not?The video over ethernet worked, but the hdmi loop out did not work on the unit I purchased.
Jamie Champion
Reviewed in the United States on November 1, 2024
I ordered this kit with the intention of connecting a TV in one room to a computer in a different part of the house. The distance between my source device and the TV I wanted to use is way too far for a regular HDMI cable, so I would have needed to spend more money on something like a fiber optic HDMI cable. Going with this HDMI over Cat 5e setup gave me the flexibility of reusing an existing run of Cat 5e cable.There are two separate units in the box. One is the transmitter (connects to your source device) and the other is a receiver (connects to your remote display). Also in the box is a single 12V DC power supply (not 5V like the product listing says), an IR receiver and an IR blaster. From my understanding the DC power supply can be connected to either unit, but I haven't tested whether that is true or not. In my case I have the power supply connected to the transmitter unit, and power is sent through the Cat 5e cable to power the receiver unit as well. The transmitter has two HDMI ports, one of which serves as a passthrough to connect a local display. The receiver only has one HDMI port.My initial test of this product involved connecting a portable monitor with an HDMI input to the receiver and connecting the transmitter to a PC through a short HDMI cable. It's probably not relevant, but the PC I've been using for this has an Nvidia RTX 2070 graphics card installed, though this shouldn't make any difference. I then connected the extenders through an ordinary Cat 5e cable that was roughly 10 ft. long. The monitor connected instantly, but the resolution was incorrect. This is probably my fault since I connected the transmitter first, but it wasn't a big deal. The setup worked, and it seemed perfectly stable.I then connected the receiver to the remote display I wanted to use. This time I was using a much longer Cat 5e cable and the display connected perfectly at the correct resolution. This display is a 4K display, and I had no issues getting a 4K60 signal over this distance. I haven't tested the IR blaster setup since I don't have a need for that with a PC, but I have to imagine it works just fine. I'm pretty impressed by this product. I haven't messed around with extending video signals over long distances much in a long time (the last product I personally used was for VGA), so I didn't know what to expect when dealing with HDMI. I was pleasantly surprised at how it just worked right out of the box.
Jeff Podolsky
Reviewed in the United States on October 13, 2024
I’m an AV dealerNeeded a HDMI Extender and splitter to show one source to 2 TV’s for a businessIt worked right awayHopefully it stays working
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