Cat6 is a specific performance tier under ANSI/TIA-568. It is rated for frequencies up to 250 MHz and supports 1 Gbps across full 100-meter channel runs. At shorter distances (roughly 55 meters or less), Cat6 also supports 10 Gbps, which is why it lands in so many offices that want headroom without paying Cat6A prices everywhere.
The spec matters because Cat6 cable has tighter twist rates, better crosstalk isolation, and stricter manufacturing tolerances than Cat5e. That is what keeps gigabit traffic clean across long runs and lets PoE devices pull power reliably without heat problems under normal loads.









