CAT8 40G Ethernet Patch Cable - S/FTP

CAT8 S/FTP Shielded Ethernet Patch Cable - Snagless, 40 Gbps

This professional-grade Cat8 S/FTP double shielded patch cable delivers blazing 40 Gigabit Ethernet performance for next-generation data center applications. Certified to 2 GHz bandwidth with dual-layer S/FTP shielding—individual foil on each twisted pair PLUS an overall braided shield—this cable provides maximum EMI/RFI protection and alien crosstalk elimination for ultra-high-speed connections. The snagless molded boot protects RJ-45 connectors during frequent patching.

Designed for ultra-short connections in server racks, top-of-rack switches, high-performance desktops, test benches, and next-generation network equipment requiring 25GBase-T or 40GBase-T connectivity. Backward compatible with Cat6A/6/5e devices at lower speeds.

Key Features

• Certified 40 Gbps performance supports 25GBase-T and 40GBase-T for next-generation networks
• 2 GHz bandwidth exceeds Cat6A specifications for ultra-high-speed data transmission
• S/FTP double shielding features foil per twisted pair PLUS full braided outer shield
• Maximum EMI/RFI protection eliminates electromagnetic and radio frequency interference
• Superior alien crosstalk elimination critical for 40G performance in dense installations
• Snagless molded boot design protects RJ-45 latch during frequent patching and cable management
• Flexible 24 AWG stranded copper pure copper conductors ensure low insertion loss and easy routing
• Optimized for short runs ideal for rack-to-rack, switch-to-server, and desktop connections
• Backward compatible works with Cat6A, Cat6, and Cat5e devices at appropriate speeds
• UL listed and ETL verified meets stringent safety and performance standards
• ANSI/TIA-568-D.2 compliant certified to latest Cat8 industry standards
• RoHS compliant environmentally responsible manufacturing
• Gold-plated contacts ensure corrosion resistance and optimal conductivity
• Multiple lengths available optimized for short-run applications
• Color-coded options for professional cable management

Ideal Applications

• Next-generation data center connections (25G/40G)
• Top-of-rack (ToR) switch to server connections
• High-performance server-to-server links
• Storage area network (SAN) connections
• Switch stacking and backbone connections
• High-frequency trading and financial systems
• Test benches and network labs
• Desktop workstations with 25G/40G NICs
• Short-run connections requiring maximum speed
• Future-proof infrastructure investments
• Any application requiring speeds beyond 10 Gbps
• Environments requiring maximum shielding and performance

Technical Specifications

Cable Type & Performance

• Category: Cat8 (Category 8)

• Shielding Type: S/FTP (Screened Foiled Twisted Pair)

  • Individual foil shielding per twisted pair
  • Overall braided shield covering entire cable

• Data Rate: 25GBase-T (25 Gbps), 40GBase-T (40 Gbps)

• Speed Support: 10/100/1000 Mbps, 2.5GBase-T, 5GBase-T, 10GBase-T, 25GBase-T, 40GBase-T

• Bandwidth: Up to 2000 MHz (2 GHz)

• Maximum Distance: 30 meters (optimized for short runs)

• Wiring Standard: T568B

• EMI/RFI Protection: Dual-layer shielding (foil + braid)

• Alien Crosstalk: Superior suppression for 40G performance

Physical Construction

• Conductor Material: Bare copper, stranded
• Conductor Gauge: 24 AWG
• Outer Jacket Material: PVC (Indoor rated)
• Outer Diameter: 8.0 ± 0.2 mm
• Boot Type: Snagless molded design
• Insertion Loss: Minimized for optimal signal transmission

Connectors

• Connector Type: RJ-45 (8P8C) male, fully shielded, on both ends
• Contact Plating: Gold-plated for corrosion resistance and optimal conductivity
• Boot Protection: Snagless molded tab protects clip
• Connector Shielding: Metal shielded housing with 360° protection
• Category Rating: Cat8 rated connectors

Available Options

• Multiple short lengths available (optimized for 30m or less)
• Multiple color options for cable organization

Compliance & Standards

• Indoor rated (PVC jacket)
• RoHS compliant
• UL listed
• ETL verified
• ANSI/TIA-568-D.2 Cat8 compliant
• Backward compatible with Cat6A, Cat6, Cat5e

Installation Notes

This Cat8 S/FTP patch cable represents the cutting edge in copper Ethernet technology, delivering unprecedented 40 Gigabit speeds over copper infrastructure. Cat8 is specifically designed for short-run, high-performance applications in data centers and professional network environments.

Cat8 Performance Advantages: Cat8 delivers significant performance improvements over Cat6A:

• Bandwidth: 2000 MHz vs. 500 MHz for Cat6A (4x improvement)
• Speed: Up to 40 Gbps vs. 10 Gbps for Cat6A (4x improvement)
• Frequency range: Optimized for 25G and 40G applications
• Future-proofing: Ready for next-generation network equipment

30-Meter Distance Limitation: Cat8 cables are certified for distances up to 30 meters (approximately 100 feet). This makes them ideal for:

• Rack-to-rack connections in data centers
• Top-of-rack switch to server links
• Switch stacking within the same room
• Desktop connections in the same area
• Test bench and lab environments

For runs exceeding 30 meters, Cat6A cables should be used for 10G applications.

S/FTP Double Shielding: The S/FTP construction provides maximum interference protection essential for 40 Gbps transmission:

1. Individual Foil Shielding (F): Each twisted pair wrapped in aluminum foil
2. Overall Braided Shield (S): Woven metal braid surrounds all pairs

This dual-layer approach is critical for Cat8 because:

• 40 Gbps signals are extremely sensitive to interference
• High frequencies (2 GHz) require maximum shielding
• Alien crosstalk must be completely eliminated
• EMI/RFI protection ensures signal integrity

Backward Compatibility: While optimized for 25G and 40G, Cat8 cables are fully backward compatible:

• With Cat6A devices: Operates at 10 Gbps
• With Cat6 devices: Operates at 1 Gbps (Gigabit Ethernet)
• With Cat5e devices: Operates at 1 Gbps

This makes Cat8 a future-proof investment that works with current equipment while providing an upgrade path to 25G/40G.

When to Choose Cat8: Cat8 is the right choice when:

• You need speeds beyond 10 Gbps (25G or 40G)
• Connections are 30 meters or less
• Maximum shielding and interference protection are required
• Future-proofing for next-generation equipment is important
• Server-to-switch or switch-to-switch high-speed links are needed

Critical Installation Requirements: For optimal Cat8 performance:

• Both devices must support 25GBase-T or 40GBase-T
• Shielded RJ-45 ports with proper grounding are essential
• Cat8-rated connectors, patch panels, and keystones throughout
• Proper grounding and bonding per TIA-568 standards
• Keep runs within 30-meter specification

24 AWG Stranded Construction: The 24 AWG stranded copper provides:

• Excellent flexibility for patch cable applications
• Low insertion loss for optimal signal transmission
• Durability for frequent connection cycles
• Pure copper for maximum conductivity

Professional Quality Features:

• UL Listed and ETL Verified: Rigorous testing for safety and performance
• ANSI/TIA-568-D.2 Compliant: Meets latest Cat8 standards
• Gold-plated contacts: Long-term reliability
• Snagless boot: Protects locking tab in professional installations
• RoHS Compliant: Environmentally responsible

Next-Generation Applications: Cat8 cables enable emerging technologies:

• 25G Ethernet for high-performance servers
• 40G Ethernet for switch backbones
• Multi-Gig NAS and storage connections
• High-frequency trading systems requiring minimal latency
• 8K video production and streaming
• Scientific computing and research applications

Plug in, patch, and experience server-grade 40 Gigabit speed with minimal cable presence—Cat8 delivers the ultimate in copper Ethernet performance for demanding professional environments.

• C8MB Data Sheet

Usually ships the same day.