this post was submitted on 22 Nov 2023
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Home Networking
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....... Category 6a will get you 10 gig at 100m..
Category 8.1 (No such thing as just 8, just like there's no such thing as 7), is for 25 and 40 gigabit at 30m, So at the distances you are talking there is no difference between category 6a and 8.1.
This seems confused. Category 8 is defined in ANSI/TIA-568-D and ANSI/TIA-568-C.2, as are Categories 5e, 6 and 6a. There is no such thing as 7 or 8.1 in that standard.
Category 8.1 and 8.2 cables and connectors are specified in another standard, ISO/IEC 11801. This one also includes Category 1, 2, 3, 5e, 6, 6a and, yes, 7 and 7a cables and connectors.
If you hence believe Category 8.1 exists but Category 7 doesn't you are being inconsistent. Only those that think Category 8 exists and 8.1 is a fantasy can be consistent in the belief that there is no such thing as 7.