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4 days ago100gbit DAC cables are widely available for $30, mch cheaper than these 96gbit cables will be. Optical cables are $120 due to the transceivers, but also reasonable. You can also use off the shelf fiber so your length is infinite with the optical cables.
I’m still pissed at the HDMI forum for banning Linux from using HDMI 2.1
https://www.phoronix.com/news/HDMI-2.1-OSS-Rejected