# item.guide
Side-by-Side Comparison Ethernet Cables

Cat 6A vs. Cat 8.1

Comparing 2 standards across 13 specifications. 13 key differences identified.

Comparing:
Cat 6A
Cat 8.1

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.

View full Cat 6A spec sheet →

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.

View full Cat 8.1 spec sheet →

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