Remember, it’s a digital signal. Don’t put too much thought (or money) into your decision. I use Cat5e shielded stranded network cable for my whole Dante rig (20+ devices) and use this on location as a portable system. I think I bought the cable on Amazon but any like it are available pretty much everywhere. Maybe Monoprice. https://www.monoprice.com/product?p_id=12724
I use good shielded connectors and solder the shield to the plug and then encase them in Neutrik Ethercon connectors. I have, literally, never had a cable failure. And if I do, off to Home Depot to buy more cable. Even unshielded will serve perfectly for a gig.
I do carry a “first aid kit” to every job with connectors and tools to terminate ethernet cable just in case. If you are doing a permanent install, you might use solid core (stranded rolls and coils much better but connectors, theoretically, stick to solid more securely) and maybe “riser rated” which might make the Fire Marshall more happy.
But really, it’s not rocket surgery.
D.
