CalDigit USB-C to HDMI 2.1 8K Adapter Dongle - High Refresh Display, HDR, 10 bit, Compatible with Thunderbolt 3/4 / USB 3.1 / USB4 for Apple MacBook Air, 2016+ MacBook Pro (USB-C to HDMI 2.1 (8K))

This Hdmi 2.1 to DP 2.0 adapter is a lifesaver!!!I have a RTX 5090 Graphics Card and a Samsung S90C OLED TV and they just do not work wepl together at all. Extreme amount of flickering, random black screens, crashes, color corruption.I spent hours and hours troubleshooting, reinstalling drivers multiple times, pouring through obscure forums looking for any clue, tries an HDMI emulator adapter, and no luck at all and then I came across this adapter and my S90C is finally not flickering or having any issues!!! I would have paid double the price for this after finding out how it well worked.I dont even notice the lack of VRR, there was no screen tearing whatsoever when gaming maybe the 5090 was pushing enough frames not to notice but regardless Im a happy camper.

A bit of a godsend for me, given my rather embarrassing situation. Spent a good deal of time unplugging and plugging in my graphics card, doing upgrades to my PC. Last instance of plugging in the HDMI cord, boom, bent the HDMI receivers. Did some research and found that I could use a Display Port to HDMI adapter to regain use of the graphics card. Ran into the problem of not quite finding a suitable adapter for what I wanted resolution and refresh rate wise.Then comes along this product. Works instantly, no oddities as of yet. More than able to maintain my current 4k, 120 hertz setup, and play my modern games. The adapter does get somewhat warm, but certainly not hot. Good price for the product, given the value of being able to use it rather than taking my graphics card to a professional for a risky repair to a modern graphics card. I will update this review if anything becomes amiss or is substantial enough to inform others about.For reference, my graphics card is an MSI Radeon 7900xtx (one HDMI 2.1, three DP 2.1).

I have two LG OLED Flex monitors, which are capable of 4K 120Hz but they only have hdmi ports.My 7900 XTX only has a single HDMI port, plus 3x DisplayPort. I have tried a dozen adapters and DP/HDMI cables, but none are able to do what this CalDigit active adapter can. In Windows 11, I'm able to run 4K@120hz 10bpc RGB 4:4:4 (you can use AMD's Adrenaline software, go to settings->display and select your monitor, then look for color depth and pixel format). Zero screen tearing or flickering.The only downside appears to be an issue with any conversion from DP to HDMI at all, which is FreeSync/VRR are simply not supported. Unfortunately the options for a recent GPU with 2x HDMI ports are sparse, though a 7800 XT from Sapphire does exist which may or may not work to provide 2x 4K 120hz 10bpc RGB 4:4:4 with VRR & FreeSync. I don't have that card to test it out, but I do know this CalDigit adapter is the best you're going to find, just make sure you're using a certified 8K HDMI cable as well.

Didn't work for my application. Would connect to my 4080 Super as NV Failsafe instead of the Samsung QN90B on the other end of the cable. Sometimes after reconnecting it several times it would finally pass the correct edid between the devices and let them work.Often times, while working perfectly it would flicker, or blank, or cause the display to artifact.A lot of people seem to love this adapater but it just didn't work for me.

This HDMI to DisplayPort adapter works perfectly to allow me to send 4K 120Hz from my PC to my TV as a third monitor. Attached is the NVIDIA Control Panel setting that I use, but it has worked in every setting that I have tested thus far. Great build quality. I cannot get VRR to work with it, but I would not even ding a star for that (plus, the item description does not claim that it can do VRR). This item saved me from having to figure out how to split the one HDMI output on my RTX 4090.

Very expensive but seems like the build quality is excellent

I had been using an Anker HDMI 4k USB-C connector with my Mac Studio for a year or so and it was getting really hot and the screen would lose connection for a few seconds at a time. I figured it needed replacing and saw the Cal-Digit (I've used their Thunderbolt hubs in the past) option with 8K support. I don't have an 8K monitor but figured I *might* someday..! Works great, screen actually looks clearer to me, so perhaps the Anker 4K was forcing me into a lower refresh rate than I had expected and never noticed. Either way, it works perfect to run at 4K/60 on my Dell monitor, and is not getting as hot as the Anker was. Solid option, much higher quality than the $10 random company adapters, and on-part with (if not better) than the Anker option.

This is the only way I can output 4k 120hz HDR in Linux with an AMD gpu. Works very well and it would be a perfect product if it supported VRR.