Cable Matters48Gbps USB C to HDMI 2.1 Cable 1.8m Supporting 4K 120Hz / 8K 60Hz HDR - Thunderbolt 4 & 3 Port Compatible support iPhone 15 Pro Max Plus - Maximum Resolution on Any Mac is 4K@60Hz

They have articles stating it works on m1 mac 4k@120hz, but you need a windows machine to get that that set up, and it's a PITA to do so. Don't waste your money on this when there are plug and play products available with no dependency on having multiple computers and flashing firmware or any kind of setup needed!

This cable is very well made and works great when my PC is first started, with my BenQ screen displaying HDR On for a few seconds. However after resuming from sleep, my screen states HDR Emulation and the colors look very, very washed out, necessitating a reboot to get the color back to normal.I purchased a different cable and that one worked perfectly.I would suggest avoiding this one, or replacing it if you have a similar issue.

This cable at first worked perfectly. It was transferring QHD at 144hz from my MacBook Pro to my LG monitor but after just 2 months, the signal is now flicking off and on. The screen goes black for 1-2 seconds, then comes back for a few mins and then flicks black again.

Does not output at 4K!

Does not support 4k120hz

Seems well made no complaints they work fine

I have an ASUS laptop featuring Thunderbolt 4 with one having DisplayPort alt mode. Bought a Dell WD22TB4 dock to use with it to have a one cable solution for my laptop docking. The dock could not output 4K@60hz on its HDMI port as it should have per the listed standards compliance. I didn’t really think it would, since the product documentation didn’t explicitly say so and it has three DisplayPorts as well. Therefore I bought two of these cables, one for my wife’s laptop and one for mine — we have the same laptop. It worked on hers, but the dock’s TB4 port labeled for DisplayPort would cause the monitor to be recognized as a Synaptics device @1080p every time the display would sleep. I moved the cable to one of the dock’s other TB4 ports and it works perfectly now. As of the time of this review, updating the dock’s firmware and gfx drivers didn’t change the issue. Fault of the dock, not the cable. Still a good dock and would recommend it vs other TB4 docks. Then I had an issue on my laptop as well. There was a BIOS/UEFI update recently for our laptops, that I noticed had reduced my previous USB-C dock’s speed (noticeable by Ethernet speeds). I didn’t try to investigate past this observance at the time, though it was one motivator for me to get a TB4 dock and this cable sooner rather than later. I watched update and noticed it also included TB4 controller firmware. With the Dell dock attached and updated, DisplayPort alt mode did not work at all. I thought ok, I’ll move it to the other TB4 port and use DisplayLink until I could troubleshoot further. The other port didn’t work at all. I tried connecting this cable directly to my TB4 DP alt mode port and got nothing. I swapped cables between my wife’s machine and mine, and the cable was fine. That’s when it occurred to me. A lot of the peripheral controllers on a motherboard don’t ever lose power, especially in the case of a laptop that never reaches 0% battery level. If some issue occurred initializing the TB4 controller after the update, the only way to re-initialize it, would be to pull the battery. Of course my laptop has an internal battery that, thankfully, isn’t too much of a pain to get to. I unplugged the battery cable, held the power button down for a minute, put it back together, and everything works perfectly now.The point of my story… if this cable doesn’t seem to be working as described, it’s probably not the cable. It could be, but it’s less likely than some connectivity issue or bus limitation.

People posting negative review clearly don't understand their own system and needs to make sure the TV/Monitor has an HDMI 2.1 port.I'm using this on a gaming PC (RTX 2070) connected to the Hisense U8G TV and it works flawlessly in 4k @ 120hz. No issue so far.Great quality cable as well!

Adds 120hz to MacBook Pro M1 with fw update.

Lo adquiri para conectar un portatil con un intel 12th y una Iris Xe y obtener los 4K 120Hz en una LG C3 42. Inicialmente no llegó a funcionar pero una vez actualizado el firmware los alcanza sin problemas. Lástima que estos cables sean tan caros pero al menos este funciona.

Connecting pc to 8K Samsung 65 inch tv.Incredible image.