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What are the differences between CAT6, CAT6e, and CAT6A?

Published by Cablesys on Aug 7th 2020

The Telecommunications Industry Association (TIA) introduced two performance standards; Category 6 (CAT6) and Category 6A (CAT6A). However, there is no CAT6e standard. This blog helps explain.

CAT6e potential bandwidth and frequency range

CAT6 potential bandwidth and frequency rangeCAT6A potential bandwidth and frequency range

Common Usage CAT6 CAT6e CAT6A
Phone Lines X
Home Network X
Office Network
Data Center X
Potential Bandwidth (per sec) 1Gb 1Gb 10Gb
Time to transfer 1 Terabyte 3 hours 3 hours 20 minutes
Data Transmission 1000 BASE-TX Exceeds 1000 BASE-TX 10GBASE-T
Connector Type RJ45 8P8C (for CAT6) RJ45 (for CAT6) RJ45 (for CAT6A)
Frequency Range Minimum 0 - 250 MHz 0 - 250 MHz 0 - 500 MHz
Frequency Maximum 500 MHz 550 MHz 600 MHz
Performance Distance 328 Feet 328 Feet 328 Feet
Alt. Distance 10Gb 180ft 10Gb 180ft -


TIA’s CAT6 standard sets the bar for CAT6 cables and connectivity. The data transmission must perform above the TIA limit for up to 250MHz. The cable can extend up to 100 meters and transfer data at a maximum data rate of 1Gbps (1000-BASE-T).


Another version of the CAT6 standard is available; it is labeled as CAT6A and is considered an advancement of CAT6. TIA set the limit at 500MHz, which is double the CAT6 standard. The CAT6A cable can extend up to 100 meters and transfer data at a maximum data rate of 10Gbps (10GBASE-T).


CAT6e is not an actual standard. It has not been implemented or qualified by the TIA or any other reputable organization or commission. CAT6e is incomparable to CAT6 because the standard technically does not exist. A correct comparison would be between CAT6 and CAT6A. CAT6 is the original version, while CAT6A is the advanced version.

Although CAT6e is not technically a recognized standard, some manufacturers still manufacture products labeled with the CAT6e classification. For their purposes, CAT6e means CAT6 “enhanced”. It indicates enhancements of the original CAT6 specification that exceed the TIA limit. Typically, CAT6e claims to: double transmission frequency from 250MHz to 500MHz or even 550MHz; be equipped with a grounded foil shielding that helps data transmission reach up to 10 Gigabit Ethernet; and extend to a maximum length of 100 meters.

Related products:

CAT6 Bulk Cables


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