Cat 6A vs. Cat 8.1
Comparing 2 standards across 13 specifications. 13 key differences identified.
Category 6a (Cat 6a, Augmented) is a standardized twisted-pair cable defined in ANSI/TIA-568-C.2 and ISO/IEC 11801 Class E_A. Operating at frequencies up to 500 MHz, it is the primary standard for 10GBASE-T (10 Gbps) across the full 100-meter channel distance, featuring strict Alien Crosstalk (ANEXT) suppression.
Category 8.1 (Cat 8.1) is an Ethernet cabling standard defined in ANSI/TIA-568-C.2-1 (Category 8) and ISO/IEC 11801 Class I. Operating at 2000 MHz (2 GHz), it supports 25GBASE-T and 40GBASE-T data rates over a 30-meter channel using backward-compatible 8P8C (RJ45) shielded connectors.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
Frequency Bandwidth
|
500 MHz | 2000 MHz |
|
Max Bandwidth / Data Rate
|
10 Gbps | 40 Gbps |
|
Standard Connector
|
8P8C (RJ45) | 8P8C (RJ45 shielded) |
|
Channel Classification
|
ISO/IEC 11801 Class E_A | ISO/IEC Class I / ANSI/TIA Category 8 |
|
Max Channel Length (10 Gbps)
|
100 m | — |
|
Alien Crosstalk (ANEXT) Specification
|
Mandatory | — |
|
Wire Gauge (Typical)
|
23 AWG | — |
|
Common Shielding
|
F/UTP, U/FTP, or U/UTP with thick jacket | — |
|
Supported Physical Layers
|
— | 25GBASE-T / 40GBASE-T |
|
Max Channel Length
|
— | 30 m |
|
Permanent Link Max Length
|
— | 24 m |
|
Shielding Requirement
|
— | Shielded (F/UTP, S/FTP, or F/FTP) |
|
Backward Compatibility
|
— | Cat 6a, Cat 6, Cat 5e RJ45 ports |