YOEMELY HDMI Keystone 8K, White HDMI Keystone Coupler for HDMI 2.1a Cable Pass Through, including 8K 60Hz or 4K 120Hz resolution and up to 48G bandwidth (6 Pack)

Great connector easy install into Keystone Wall Plate. Got these because they are the latest and most up to date version( HDMI version 2.1). Alot of the other sellers are selling lower versions of HDMI for example 1.4, or 2.0. Why would anyone want to use a lower version of technology is beyond me. I recommend this product.

None of the 12 couplers that I tried could do 4k and HDR at the same time. I think it's unlikely that two separate batches were bad, so I think it's safe to say these aren't actually HDMI 2.1.

I misplaced these for a couple months after buying them, but as I'm rebuilding my home network keystone panel, I'm using a couple of these up for an inbound Raspberry Pi rackmount set.They fit into the standard keystone frame, offering an angled full size HDMI connector/coupler. For the Pi gear I'll get four microHDMI to HDMI adapters and run them out to these, or connect those adapters to a KVM switch and run its output to the panel for an external monitor. Still deciding, but it'll work well either way.Honestly there's not much to say - they're functional and convenient for purpose and will go well alongside my other connectors in the keystone panels.

haven't stuck them in a wall plate just yet as i wanted to get my review in asap. they work perfectly and for my limited arc use, the joined cables showed no inherent signal problems. these are nicely made and very sturdy. my connection is for outdoor use and should there be a problem, i'll update this report.

i used these in a patch panel mounted in my entertainment stand so that i could easily switch my many game consoles and other devices among the four TVs in my family room, the TV in my living room and to a wireless HDMI transmitter. this way my kids and I werent limited to which consoles could be used with specific tvs. i used these 6 couplers for the TV connectors, since they sit at a 45 degree angle, it makes them easy to differentiate between the input devices that are on the straight up and down ones. i color coded these 6 ports with electrical tape and i have a small color coded HDMI cable that goes with each output device. this way the kids just take the red cable that stays in the red HDMI port and they just plug in the other end to the game system of their choice to connect that system to the TV associated with the red port. all of my kids seem to prefer this over the series of cheap HDMI matrix switches we were trying to use (i couldn't brin myself to spend $600 on a proper hdmi matrix switch.anyway, these ports are great. they snap into the patch panel nicely and they pass the hdmi signal through. i liked that they are angled so that they stand out from the other ones i got for the game consoles.

A few years ago, I moved all my A/V equipment from a cabinet into my home office and installed low-voltage wall boxes and plates. While I used quickport keystone couplers for point-to-point ethernet runs, POTS telephone jacks and cable (both of the preceding now obsolete), I could not find HDMI keystone adapters, and assumed it was not possible because of the width of the HDMI connector. So one of the wallplates has two HDMI connectors taking up the entire plate, and as a result, I have four ethernet cables terminating in the attic instead of on a wall plate, and a switch that only lasts a year or two in the heat. I really want to run these into my office but don't want to make another hole in the wall for another plate.Lo and behold these keystone adapters have now appeared! I will now retrofit the two HDMI connectors with a plate that allows 6 keystone adapters to be installed -- two of these HDMI adapters and four ethernet passthrough keystone adapters and I can get rid of the ethernet switch in the attic.As a test, I plugged this adapter inline with two HDMI cables to my 4K TV and there was no trouble passing 4K HDR through the adapter. I have no 8K devices so I can't verify that works. I don't expect them to work any differently when I install them in the new wall plate (still on order).Very happy that this product now exists and works!

Keystones are not just for wall installations though I'd easily use these if I were installing video cable for a wall TV, etc. But these also make fantastic extenders if you get a couple of shorter cords you need to string together rather than buy more new cables. And the expandability to 8K right out of the package means it's ready for the future if you're working with FHD, SD, 1080p or 4K cables. Nice, clean, white and simple with no signal loss or interference pickup that I could find!

I needed a lineman's pliers to get these in to my patch panel. That is sort of annoying, but more annoying is when you have a termination point where the keystone keeps falling out, so I guess I'll deal with it in the expectation that I won't be changing that patch panel's layout.My telecom cabinet/area is in the utility room, which is underneath my main TV watching area, which works out great. I have five of these in my one patch panel so I can view servers (NVR, NAS, computers, etc.) on my TV, while having everything looking perfect in my telecom cabinet. This is great stuff for a nerd like me.I'm also just using some as extenders until I get appropriate length HDMI cables. So I'm stringing three cables through some of these things and the signal is still making it to the TV, so it seems they don't have too much loss, either.

Cinéma maison.

Nice thin keystones for mountUsing with toslink, cat6, usb-3 for my new 70" 4k tv. Works great