Go Cat8!

i"m sure any CAT8 cable will be fine... regardless of the manufacturer  .as of connectors, any gold plated  is also fine. Don"t  get sucked into multi-hundred dollar adventure 

I just ordered a 12 meter and a 1 meter and it was $95 total, so not too bad. 

I didn't feel like spending another $40 on shipping, so it will take a while to arrive.  

Different topic but regarding the "law of diminishing returns", if $100 of ethernet cable provides even a 1% improvement in the system, in my case that would be a value of over $1000.   

Or you go with fiberoptic converter and very short cat8 instead of 12 M copper. 

That made a nice improvement in my system 🙂

I’ve tried fiberoptic converters in several implementations in my system and it’s always sounded thin, lacking real natural tone of instruments and voices. I think its the conversion of photons back to electrons at the receiving end that generates harmonics of the fundamental signal frequency, that then interfere with the downstream electronics.