GeoHN.G Fiber Optic HDMI Cable 33ft, 48Gbps HDMI 2.1 Cable 8K@60Hz 4K@120Hz Dolby/Dynamic HDR/HDCP 2.3/eARC 8K Fiber One-Direction HDMI Cord Compatible with Blu-ray Box HDTV Projector

It's a great 10m long cable. Can do 4k120 width HDR and VRR from my PC (Win10 NVIDIA 4070, HDMI 2.1 output port) to my TV (SAMSUNG The Frame, HDMI 2.1 input port), and there is no latency. I measured the latency by starting the "Frame skipping - for display overclocking" test on www.testufo.com, which lights up a new block on every frame. Set my monitor (over display port) and the TV (over HDMI) to the same 120Hz and "Duplicate these displays" setting, and then took a few pictures with my phone to see if they are showing the same or not. The TV is actually sometimes half a frame ahead of the monitor, but most of the time they are the same. This is the exact same result as I got before with a regular copper HDMI cable. I think the display port standard which needs to convert the video signal to packets actually introduces some latency versus an HDMI video signal. I cannot compare HDMI monitor to HDMI TV because my videocard only has one HDMI output. Anyway, the conversion to optical signal and back does not introduce any measurable difference vs a copper HDMI cable. Maybe with some special equipment you could measure it but I think its way below the milliseconds, probably in the micro or nanoseconds range.

El cable iba bien, instalado en su canaleta, funcionando perfectamente y al cabo de unos 7 meses, sin avisar dejó de funcionar. Sin respuesta por parte del vendedor que asumió el cambio pero a día de hoy, tras un mes y pico esperando, sigo sin cable. Gracias a Amazon por las gestiones para la devolución. Compraré en otro vendedor dada la atención recibida, que siendo normal, no ha sido en absoluto efectiva ni eficaz. Saludos

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Sadly the cable starts to flicker at 4k 120hz output from my pc

J'ai acheter ces câbles hdmi optique 10M de long j'avais le câble hmi classique compatible 8k avant en 7,50M alors le résultat est est tout bonnement stupéfiant sur vidéoprojecteur 4k bien meilleur colorimétrie,déradé couleur plus large et bien plus naturel,contrats légerement plus élevé une telle difference de qualité visuel avec juste le remplacement du cable hmi en optique sincèrement je n'aurais pas cru sans le voir de mes yeux très très satisfait de ces câbles!! remplacement des autres plus court a l'avenir que par ce modèle hdmi