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Why is Cat 5 cable only specified up to 100Mhz, if it's to be used for 100BASE-TX, which surely contains frequencies much higher than 100Mhz?

Likewise, why is Cat 6A only specified to 500Mhz, but is suitable for 10GBASE-T?


marked as duplicate by Tom Carpenter, Brian Carlton, Dave Tweed Jul 28 '17 at 0:08

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