Originally Posted by
jim
As I recall Cat6 is rated for 10Gb ethernet over 55m, and Cat6a over 100m. Given that hardly anyone is running 10Gb ethernet, you would already be futureproofing.
So if you're running cable lengths over 55m then by the spec you would want 6a. Given that you're not expecting any sources of interference I'm not sure that STP would benefit you.
I doubt it would make all that much difference in practice, but for me I would just want to get the most future-proof cable, do it once, and avoid wanting to do it again.