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Is there a DP2.1 to HDMI2.1 Adapter supporting 4K@144Hz with VRR support?

Updated 2 days ago in Adapters and Cables
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1 on 02-06-2025

Hello,

I have a 5090 which has 3x DP 2.1 ports.

I have 3 monitors that have HDMI 2.1 ports and would like to connect them to the DP 2.1 ports of the 5090. I’m looking for the correct adapter.

I need to be driving them at 3840×2160@144Hz in 10bit color + HDR each.

So far, the only adapter with DP 2.1 to HDMI 2.1 I have found is this one: CSV-7330 I’m not sure if it is suiteable, as it is DP to 3x HDMI. But I guess using each dedicated DP port (per monitor) would make more sense. So using 3 adapters.

My monitors do not work well with DSC, so I need a solution that doesn’t use Display Stream Compression.

What I’ve tried is using the “old” adapter CAC-1080 – this actually works at the desired 144Hz. But sadly it doesn’t support VRR (G-Sync in case of my monitors).

Is the CSV-7330 suitable for my scenario? And does it support G-Sync (VRR)? Or is there another adapter you can recommend.

Thanks in advance!

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Wiktor 0 2 days ago

Hi,
What kind of monitors do you have?
The CSV-7330 would work, but as you said, it’s better to use three separate ports.
Our CAC-1088 adapters are the best option for you. They use DisplayPort 1.4 + (DSC) input and HDMI 2.1 output.
VRR is tricky because GPU, chipset, and screen manufacturers can’t find a reliable solution for stable VRR when switching between DP and HDMI. Our chipset supports this technology, but we don’t market our products as such because of inconsistent compatibility.

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