GeoHN.G 3M Fiber Optic HDMI 2.1 Cable - 48Gbps High-Speed, 8K@60Hz, 4K@120Hz, Dolby/Dynamic HDR, HDCP 2.3, eARC Compatible with Blu-ray/TV Box/HDTV/Projector

I was concerned about possible latency and HDMI plugs overheating, however I needn't had been concerned. Not even warm to the touch, and no real-world latency, i.e. well below 1ms. This cable just delivers what it promises. Copper cables tend to be device sensitive, for example even if the cable is certified, it may not function correctly with some devices at high bandwidth due to any number of issues such as HDMI port quality (the receptacle that you plug the cable into, both ends). Many of the HDMI switches tend to have compatibility issues because they tend to use rather cheap physical HDMI ports. Even the latest TVs have been noted to skimp on port quality (one could argue it is to help bring prices down, some would argue it is about keeping profit margins high and not the presumed assumption of bring consumers lower pricing). I would recommend to nearly always try a good quality copper cable (certified), because you save on a little bit of electricity (less than a watt for these HDMI optical cables), and if you can get away with traditional copper cabling, great, but only resort to optical cables when coppers just don't give you what you need with your setup. Indeed for longer runs it is always better to go with optical for high-bandwidth requirements. This cable is good, rather flexible slim cable. I wouldn't recommend this cable for tasks where constant removal and plugging is part of the job description as they are not built like the heavy-duty monster copper variety designed for 'military style' handling. This cable doesn't have any strain relief, it has just a short gland at the rear of the plug which is clamping the cable into the plug, to be honest it is all you need as the cable is quite flexible, but this isn't the type of cable where you would constantly pull on the cable itself, unplugging by pulling on the plug rather than cable is advisable for a cable of this design. Happy with the cable, if you're looking for upto 8K 60hz bandwidth support, this one is a bargain.

The hdmi was working great on my pc until it died randomly. At first I thought maybe it could be my pc so I tried it on multiple different devices and no picture at all. This lasted me 3 days that is incredibly poor

I bought two 7.5m versions of this cable with a tasty discount meaning they were not much more expensive than their copper counterparts. I had to go optical as I needed to fit 2 cables into the space that a single copper cable was occupying in some trucking, even the thinnest copper cables I could find were too thick with all the shielding and braiding. These on the other hand are not much thicker than your average USB cable. Happy to report that out of the box they work as advertised, carrying 4K 120hz Dolby Vision and Atmos from my XBOX to my LG OLED with out any issues. The only issue I seem to encounter it that sometimes the LG TV will not detect the signal on the HDMI port and say ‘No Signal’ if I switch to the input after the source device is powered on. If I then switch the source device off and on again it will come back to life. Possibly without the electrical signals the TV has a harder time detecting an active input, I’m not sure. Definitely only happened since switching to this cable however. All in all still very happy with these for the price. Just hope they last as some reviews point to failure after several months, will update if this is the case. EDIT: ok there does appear to be a problem with the way this cable works that causes the signal to the TV to be lost when the source device changes resolution/refresh rate while active. This is most common for me when switching between the XBOX Home Screen and a game, the screen goes black and the TV reports no signal. Sometimes (rarely) this corrects itself after a few seconds, but in most cases it requires me to power cycle the XBOX to get the signal back.

I have problems with my old copper 7.5mtr cable connected between Yamaha AV receiver and Optoma cinemax p2 projector. Everytime i turn on washing machine, fridge, microvave or any other heavy power usage appliance, i haved signal loss betwen my devices and picture disconnected for few seconds, i used 4 different copper hdmi cables and haved same problem. This cable solved this issue, now i can move my amplifier to other side of the room, so no nedd to connect them with short 2m copper hdmi cable. From other hand i see no difference in picture quality, its the same, i think hdmi cable type have nothing to do with picture quality. But im happy with this cable, just bought 2 more 1metre cables for ps5 and satelite receiver to connect them to my Yamaha amp, time to step forward, times changes, technology too, i quit copper connection for fibre.

Bei cavi, tutto dipende dal prezzo a cui li comprate. Il cavo in fibra occupa meno ma è chiaramente più delicati e i connettori più ingombranti in profondità.

Purchased three of these cables for sending 4k @ 120hz over long distances. Tried two other brands. These all work flawlessly

Zero star if possible. Broken after a month. Rarely used.

à trois reprises j'ai acheté ce HDMI en fibre optique après quelques heures de fonctionnement l'écran était noir si vous ne voulez pas perdre de l'argent je vous déconseille ce produit heureusement amazon est intervenue et à rembourser les produits défectueux encore un grand merci à Amazon pour son travail et son honnêteté

c'est le deuxièmes que je commande,pour relié ma ps5>avr demon>tv. fonctionne très bien qualités du son 7.1 atmos 👍 et meilleur qualité de limage 👍 de plus hdmi fibre optique~certifié~. vous rechercher un hdmi a un prix resonable? et bien cherché plus c'est ce lui ci qui il vous faut. je vous le conseil.