Network classifications and categories

Classes	Link / channel	Cable / connectors	Ethernet Speed	Shielded / unshielded	connector type	Distance
Class A	100 kHz	Category 1
Class B	1 MHz	Category 2
Class C	16 MHz	Category 3	telephony & 10 mbps	UTP	RJ11/12/45
N.A.	25 MHz	Category 5	10/100 mbps	UTP/FTP	RJ45 (2 pairs)	100m (90+10)
Class D	100 MHz	Category 5e	10/100/1000 mbps	UTP/FTP	RJ45(2 pairs)	100m (90+10)
Class E	250 MHz	Category 6	10/100/1000 mbps	U-F-S/U-F-STP	RJ45(4 pairs)	100m (90+10)
N.A.	250-625 MHz	Category 6	10 gbps	U-F-S/U-F-STP	RJ45 (4 pairs)	min. 37m – max. 50m
Class EA	500 MHz	Category 6A	10 gbps	U-F-S/U-F-STP	RJ45 (4 pairs)	100m (90+10)
Class F	600 MHz	Category 7	10 gbps	S/FTP	GG45/TERRA	100m (90+10)
Class FA	700 MHz	Category 7A	10 gbps	S/FTP	GG45/TERRA	100m (90+10)
Class I	1600-2000MHz	Category 8.1	40 gbps	U/FTP or F/UTP	RJ45 (4 pairs)	30m
Class II	1600-2000MHz	Category 8.2	40 gbps	F/FTP or S/FTP	RJ45 (4 pairs)	30m

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