CAT8.1 CMR Riser Cable 1000ft - S/FTP Dual-Shielded, 23AWG 40G

Optimize your data center and enterprise networking with our high-performance CAT8.1 Dual-Shield Riser Ethernet Cable, engineered for ultra-fast 40GBASE-T speeds up to 30 meters and superior EMI protection in vertical riser installations. Featuring S/FTP double shielding (foil per pair + overall braid), heavy-duty 23 AWG solid bare copper conductors, and a flame-retardant UL-rated CMR PVC jacket, this shielded CAT8 riser cable ensures minimal attenuation, cooler PoE++ operation, and compliance with riser fire codes for vertical shafts and in-wall runs—ideal for short vertical switch-to-switch links, multi-story data center interconnects, equipment room risers, and any high-speed vertical setup demanding reliability, bandwidth up to 2,000MHz, and backward compatibility with standard RJ45 connectors.

Designed for the unique scenario of short vertical runs requiring maximum copper performance with fire safety, this exceptionally rare cable combines eight premium features: CAT8.1 Class I performance (2,000MHz), CMR fire rating for vertical installations (highly uncommon to CAT8), S/FTP dual shielding (mandatory for CAT8), heavy-duty 23AWG conductors, 40GBASE-T capability up to 30m, 25GBASE-T support, 1000ft spool (2x typical CAT8 length), and standard RJ45 compatibility. The S/FTP shielding provides individual foil on each pair PLUS an overall tinned-copper braid—delivering pristine 40Gb signal integrity in electrically noisy riser environments. Exceeding ISO/IEC 11801 Class I and ANSI/TIA-568.2-D Category 8 specifications with UL-CMR certification, it's the ultimate specialty solution for short vertical runs requiring both maximum copper ethernet performance and fire-safe compliance.

Key Features

• Advanced S/FTP double shielding for maximum EMI/RFI protection
• Individual foil wrap on each twisted pair for superior isolation
• Overall tinned-copper braid shield encases the entire cable
• Mandatory shielding for CAT8.1 Class I performance
• Eliminates EMI/RFI interference and alien crosstalk
• Pristine signal integrity in noisy riser environments
• Heavy-duty 23 AWG solid bare copper conductors (optimal for CAT8)
• Low resistance for efficient, cooler PoE++ operation
• Reduced attenuation for reliable 40Gb/s data transmission
• Optimal gauge for short to medium distance vertical runs
• Ultra-high 2,000MHz (2GHz) bandwidth - CAT8.1 Class I specification
• The absolute highest copper Ethernet specification available
• Supports 40GBASE-T up to 30 meters (cutting-edge performance)
• Supports 25GBASE-T up to 30 meters (emerging standard)
• Supports 10GBASE-T for full backward compatibility
• PoE++ (IEEE 802.3bt) compatible for powered devices
• UL-rated CMR (Communications Riser) flame-retardant PVC jacket
• Meets non-plenum riser fire-code requirements
• Safe for vertical shafts and in-wall installations between floors
• Fire compliance for multi-story buildings
• EXCEPTIONALLY RARE: CMR rating for CAT8 (most CAT8 is non-rated or LSZH)
• Class-I RJ45 compatibility for easy integration
• Seamlessly works with standard Cat6A/7/8 modular plugs
• Pairs perfectly with Cat8 field-termination connectors
• Standard RJ45 termination (CAT8.1 advantage over CAT8.2)
• Sequential foot markers for quick length tracking
• Hassle-free installations in vertical runs
• 1000ft spool - 2x typical CAT8 spool length (usually 500ft)
• Professional-grade for mission-critical infrastructure

Ideal Applications

• Short vertical runs in multi-story data centers (floor-to-floor <30m)
• Equipment room to floor below requiring CMR and 25/40G
• Vertical riser shafts with short spans requiring maximum copper performance
• Multi-story buildings with short floor-to-floor distances
• Switch-to-switch vertical links requiring fire safety
• Top-of-rack to equipment room interconnects (vertical)
• Server cluster vertical connections requiring CMR compliance
• Specialized riser installations requiring both CAT8 performance and fire rating
• High-speed vertical setups in buildings with strict fire codes
• Any short vertical application requiring 25/40G with a CMR rating
• Unique scenarios where CAT8's 30m limit fits vertical spans

Cable Type & Construction

• Standard: CAT8.1 (Class I)
• Type: Riser-Rated (CMR), Dual-Shielded - EXCEPTIONALLY RARE
• Shielding Type: S/FTP (Shielded/Foiled Twisted Pairs) - Mandatory for CAT8
• Individual Shield: Foil wrap on each pair
• Overall Shield: Tinned-copper braid encasing all pairs
• Pairs: 4 twisted pairs, each individually shielded
• Total Conductors: 8
• Installation: Vertical riser shafts, floor-to-floor short runs, in-wall (non-plenum)

Conductors

• Gauge: 23 AWG (heavy-duty, optimal for CAT8 short runs)
• Material: Solid bare copper
• Configuration: Solid (permanent installation)
• Performance: Low resistance, cooler PoE++, reduced attenuation, reliable 40Gb/s
• Advantage: Optimal for 25/40G short vertical applications

Shielding

• Shield Type: S/FTP - Dual shielding (mandatory for CAT8.1)
• Individual Pair Shield: Foil wrap on each of 4 pairs
• Overall Shield: Tinned-copper braid (30-60% coverage typical)
• Drain Wire: No (shielding provides grounding)
• EMI/RFI Protection: Maximum - absolute highest level for copper Ethernet
• Signal Quality: Pristine 40Gb integrity in noisy riser environments
• Crosstalk: Eliminates alien crosstalk between pairs

Insulation

• Material: High-density polyethylene (HDPE)
• Performance: Enhanced CAT8.1 Class I specifications

Performance

• Maximum Frequency: 2,000MHz (2GHz) - CAT8.1 Class I standard
• Data Rate (40G): 40GBASE-T up to 30 meters
• Data Rate (25G): 25GBASE-T up to 30 meters
• Data Rate (10G): 10GBASE-T (backward compatible)
• Maximum Distance: 30 meters for 25/40GBASE-T (CAT8 limitation)
• PoE Compatible: Yes - PoE++ (IEEE 802.3bt)
• Attenuation: Reduced with 23AWG conductors
• Signal Integrity: Maximum - dual shielding ensures pristine performance
• Connector Type: RJ45 compatible (CAT8.1 standard)

Jacket

• Material: CMR-rated PVC (flame-retardant)
• Fire Rating: CMR (Communications Riser) - UL listed
• Compliance: Non-plenum riser fire-code requirements
• Outer Diameter: 7.8mm ± 0.5mm
• Marking: Sequential foot markers
• Safety: Approved for vertical runs between floors in non-plenum spaces
• Durability: Robust for riser environments

Installation Rating

• Indoor Rated: Yes (CMR)
• Outdoor Rated: No
• Suitable Areas: Vertical riser shafts, floor-to-floor short runs, in-wall (non-plenum)
• Environment: Non-plenum indoor vertical installations
• Fire Safety: Flame-retardant for code-compliant vertical runs
• Special Use: Short vertical runs requiring CAT8 performance and CMR rating

Design Advantages

• Five Premium Features: CAT8.1 + CMR + S/FTP + 23AWG + 40G (exceptionally rare)
• CAT8.1 Class I: 2,000MHz bandwidth, absolute highest copper Ethernet spec
• CMR Rating: EXCEPTIONALLY RARE for CAT8 - fire-safe vertical installations
• 40G Capable: 40GBASE-T up to 30m
• 25G Capable: 25GBASE-T up to 30m
• S/FTP Mandatory: Dual shielding required for CAT8 performance
• 23AWG Optimal: Perfect gauge for short high-speed vertical runs
• RJ45 Compatible: Standard connectors (CAT8.1 advantage)
• 1000ft Spool: 2x typical CAT8 length
• Specialty Solution: For unique applications requiring both CAT8 and CMR

Use Case Considerations

• Primary Use: Short vertical runs requiring 25/40G with CMR fire safety
• Distance Limit: 30m maximum for 25/40GBASE-T (CAT8 spec limitation)
• Rarity: CMR + CAT8 combination is EXCEPTIONALLY RARE in the market
• Why Rare: Most vertical runs >30m use fiber or CAT6A; CAT8 is typically for horizontal data center
• Best For: Unique scenarios with short vertical spans requiring maximum copper performance
• Advantage: Highest copper Ethernet performance with fire-safe compliance
• Premium Investment: For specialized vertical installations requiring both CAT8 and CMR
• Note: For vertical runs >30m at 25/40G, fiber optic is required
• Connector: Standard RJ45 (CAT8.1) for easy integration

Packaging

• Spool Size: 1000ft - 2x typical CAT8 spool length
• Design: Extended length for riser installations

Compliance & Certifications

• Standards: ISO/IEC 11801 Class I (CAT8.1), ANSI/TIA-568.2-D Category 8
• Fire Rating: CMR (Communications Riser) - UL listed
• Certification: UL-CMR verified
• Performance: Class I certified for 2,000MHz

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