Which of these categories of twisted-pair cable can support Gigabit Ethernet?

Which of these categories of twisted-pair cable can support Gigabit Ethernet?

  • Cat 5
  • Cat 5e
  • Cat 6
  • Cat 6a
  • Cat 7
  • Cat 7a
  • All of These

All of the categories of twisted-pair cable listed (Cat 5, Cat 5e, Cat 6, Cat 6a, Cat 7, and Cat 7a) can support Gigabit Ethernet.

How and Why?

Twisted-pair cables are made up of pairs of insulated copper wires twisted together. This helps reduce interference and crosstalk, which makes them ideal for carrying data.

In order to support Gigabit Ethernet (1 Gbps or 1000 Mbps), a cable must be able to transmit up to 250 MHz of bandwidth without any signal attenuation or crosstalk.

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  • Cat 5 cable can support up to 100 Mhz and is limited to 10/100 Mbps speeds, making it insufficient for Gigabit Ethernet. Cat 5e is able to handle up to 350 MHz of bandwidth and is capable of supporting Gigabit Ethernet, but only when a higher-quality connector is used.
  • Cat 6 cable can support up to 500 MHz of bandwidth, and when used with a quality connector and appropriate wiring instructions, it is fully capable of supporting Gigabit Ethernet. Cat 6a can handle up to 600 MHz of bandwidth, making it suitable for 10 Gbps speeds as well as Gigabit Ethernet.
  • Finally, Cat 7 and Cat 7a are able to support up to 1000 MHz of bandwidth and are fully capable of supporting 10 Gbps speeds as well as Gigabit Ethernet.

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