Cat 6 for sure. I thought there was some extra tweak beyond that, but I probably misremembered after all this time. Perhaps it was just that it was plenum-rated..

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globular-toast 5 hours ago | parent [-]

You might be thinking of cat6a which officially supports 10G over long lengths, unlike cat6.

	▲	saltcured 4 hours ago \| parent [-]
		Nah, it was definitely around 2006 which seems to be before cat 6a was ratified. So I couldn't have bought a reel marked that way...