CATEGORY X CABLING
1. UTP cabling standard used in 16 MHz 10Base-T networks or 4Mbps Token Ring networks. 2. UTP cabling standard used in 20 MHz 10Base-T networks or 16Mbps Token Ring networks. 3. UTP cabling standard used in 100 MHz 10Base-T networks. 4. UTP cabling standard used in 155 MHz 10Base-T networks. 5. UTP cabling standard used in 1 GHz 10Base-T networks.
More: 1. Category 3 2. Category 4 3. Category 5 4. Category 6 5. Category 7