you stumble on audiophile-driven discussions, related to exploiting their customer base.
I found today, completely at random, category 6 ethernet patchcord that… provides directional audio optimization support:
DIRECTIONALITY All audio cables are directional. The correct direction is determined by listening to every batch of metal conductors used in every AudioQuest audio cable. Arrows are clearly marked on the connectors to ensure superior sound quality. For best results have the arrow pointing in the direction of the flow of music. For example, NAS to Router, Router to Network Player.
yes, sure. go ahead and check vendor site and obviously comments on Amazon.com. you can find more beatifully crafted nonsense here, and you can actually find a site here that is collecting similar absurds.