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Sigma Cat 8 Ethernet Cable 40 GbE / 2 GHz
Purpose-built for next-gen 25G/40GBASE-T, the Sigma Cat 8 unleashes 2 000 MHz of channel bandwidth and 40 Gb/s full-duplex throughput across ≤ 30 m copper links—while keeping latency under one microsecond. Dual-layer S/FTP shielding, precision 8P8C terminations, and FEC-grade signal fidelity make it the copper backbone for data-center spines, 8K IP video, and EMI-laden industrial floors.
Core Engineering Features
- 40 Gb/s Throughput: ISO/IEC 11801 Class I channel, verified 40 GbE over 30 m.
- 2 GHz Swept Bandwidth: Certified to 2 000 MHz—6 dB headroom above Cat 8 spec.
- S/FTP Noise Armor: 100 µm foil ✚ 85 % braid crushes ANEXT & RFI up to 2 GHz.
- Sub-Microsecond Latency: Propagation delay skew ≤ 8 ns/100 m; deterministic for VoIP, trading, and PLC control.
- Precision 8P8C: Gold-flash contacts & load-bar keep RL ≤ -35 dB @ 2 GHz.
- PoE++ Ready: 802.3bt Type 4 (90 W) power delivery with 23 AWG solid copper conductors.
- CMR & Outdoor Jacket: FR-PVC –40 °C … +75 °C, UV-stabilized; tray/conduit compliant.
- Backwards Compatible: Auto-negotiates with Cat 5e, 6, 6A, 7 for phased upgrades.
Technical Specifications
| Electrical Parameters | |
|---|---|
| Data Rate | 40 Gb/s (25 Gb/s, 10 Gb/s, 5 Gb/s, 2.5 Gb/s fallback) |
| Bandwidth | 2 000 MHz channel |
| Return Loss | ≤ -35 dB @ 2 GHz |
| Delay Skew | ≤ 8 ns/100 m |
| Bit-Error Rate | < 1 × 10-12 (with PHY FEC) |
| PoE Support | IEEE 802.3bt Type 3/4—90 W |
| Mechanical & Environmental | |
|---|---|
| Conductor | 23 AWG solid bare copper |
| Shielding | Foil-wrapped pairs + 85 % tinned-copper braid (S/FTP) |
| Jacket Rating | CMR / FT4, UV-resistant FR-PVC |
| Operating Temp | -40 °C … +75 °C |
| Bend Radius | 8× OD (static) / 10× OD (dynamic) |
Mission-Critical Use Cases
| Environment | Performance Advantage |
|---|---|
| Edge & Core Data Centers | High-density 40 GbE TOR/leaf links with fiber-class BER. |
| Pro A/V & Broadcast ST 2110 | Lossless 4K/8K IP video over copper—no SDI or fiber swaps. |
| Financial & HPC Clusters | Nanosecond jitter for latency-sensitive trading or MPI fabrics. |
| Esports / VR Arenas | Zero-drop 240 Hz gameplay; instant spectator feeds. |
| Industrial Automation | EMI-immune deterministic Ethernet for robotics & machine vision. |
| Secure Campus Backbones | Faraday-cage shielding blocks EMI injection & eavesdropping. |
Standards & Certifications
- IEEE 802.3bq 25G/40GBASE-T • 802.3bz 2.5G/5GBASE-T
- UL CMR, ETL Verified, RoHS 3, REACH
- ANSI/TIA-568.2-D Cat 8 & ISO/IEC 11801 Class I
