Side-by-Side Comparison
Ethernet Cables
Cat 5e vs. Cat 8.1
Comparing 2 standards across 14 specifications. 14 key differences identified.
Comparing:
Cat 5e
Cat 8.1
Category 5e (Cat 5e, Enhanced) is an Ethernet twisted-pair copper cable standard defined in TIA/EIA-568-B.2. Rated for frequencies up to 100 MHz, it introduced stringent electrical crosstalk specifications, enabling reliable 1000BASE-T (1 Gbps Gigabit Ethernet) transmission up to 100 meters across all four pairs.
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
14 Parameters| Parameter / Spec | ||
|---|---|---|
|
Frequency Bandwidth
|
100 MHz | 2000 MHz |
|
Max Channel Length
|
100 m | 30 m |
|
Standard Connector
|
8P8C (RJ45) | 8P8C (RJ45 shielded) |
|
Channel Classification
|
ISO/IEC 11801 Class D | ISO/IEC Class I / ANSI/TIA Category 8 |
|
Max Data Rate (1000BASE-T)
|
1 Gbps | — |
|
Max Multi-Gig Rate (802.3bz)
|
2.5 Gbps | — |
|
Wire Pairs
|
4 pairs | — |
|
Active Pairs (1000BASE-T)
|
4 pairs | — |
|
Typical Shielding
|
U/UTP (Unshielded) or F/UTP | — |
|
Max Bandwidth / Data Rate
|
— | 40 Gbps |
|
Supported Physical Layers
|
— | 25GBASE-T / 40GBASE-T |
|
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 |