Patch Cord | Cat8, S/FTP Stranded Bare Copper, Round 20ft
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Sigma™ Cat 8 Ethernet Cable · 40 Gbps • 2 GHz • PoE++ 100 W
Future-proof your network backbone with the Sigma Cat 8 Ethernet Cable — engineered for next-generation data speeds, precision latency, and absolute signal integrity. Designed to exceed Category 8 standards, it delivers a seamless experience across enterprise networks, gaming platforms, and high-resolution media environments. Whether linking 40GBASE-T switches, streaming native 8K content, or powering high-wattage PoE++ devices, Sigma Cat 8 delivers unmatched performance and reliability.
Performance Overview
- 40 Gbps Data Rate: Supports full 40GBASE-T performance for backbone interconnects and bandwidth-intensive workloads.
- 2000 MHz Bandwidth: Double the spectral efficiency of Cat 7, ensuring flawless data integrity at 2 GHz frequency range.
- < 1 µs Latency: Sub-microsecond response time guarantees real-time performance for gaming, automation, and AV transport.
- PoE++ 100 W Ready: IEEE 802.3bt Type 4 compliant for high-power applications — including PTZ cameras, access points, and LED systems.
- F/FTP Shielding: 4-layer foil + braid shielding isolates each twisted pair to eliminate EMI, RFI, and alien crosstalk.
- Bit-Error Correction: In-line FEC enhances signal reliability for extended cable runs and critical data channels.
Technical Specifications
| Data Rate | 40 Gbps (40GBASE-T) |
| Bandwidth | 2 GHz / 2000 MHz |
| Shielding | F/FTP 4-layer foil + braid |
| Error Control | In-line FEC (Forward Error Correction) |
| PoE Support | IEEE 802.3bt Type 4 (100 W PoE++) |
| Latency | < 1 µs (1/1,000,000 second) |
| Lengths | 0.5 m – 100 m (1.6 ft – 328 ft) |
| Jacket Options | PVC (CM), LSZH, Outdoor UV rated |
Optimized Use Cases
- 8 K / 4 K Video Streaming: Zero-buffer content delivery for broadcast, production, and AV-over-IP systems.
- Hi-Res Audio: Bit-perfect audio-over-IP for studio and audiophile environments using Dante™, AES67, or AVB.
- Gaming & VR: Achieve microsecond-level response times for competitive online play and immersive experiences.
- Data Centers & HPC: High-density switch-to-server connections for 25G/40G Ethernet fabrics.
- Industrial Control: Deterministic UDP/TCP-IP communication for automation, robotics, and SCADA systems.
Frequently Asked Questions
1. What distinguishes Sigma Cat 8 from previous Ethernet categories?
Sigma Cat 8 doubles the operating frequency of Cat 7 (2000 MHz vs 1000 MHz) and supports 40 Gbps data rates with tighter twist ratios, superior foil isolation, and FEC-enabled signal correction for unmatched stability.
2. Can this cable power devices through PoE++?
Yes. Sigma Cat 8 complies with IEEE 802.3bt Type 4, delivering up to 100 watts of PoE++ power for demanding equipment like 4K PTZ cameras, Wi-Fi 6E access points, and PoE lighting.
3. How does F/FTP shielding enhance performance?
Each twisted pair is individually foil-wrapped and surrounded by an overall braid, ensuring 360° EMI/RFI protection and virtually zero alien crosstalk. This maintains clean signals even in high-density rack environments.
4. Is Sigma Cat 8 compatible with Cat 6 and Cat 7 hardware?
Absolutely. Sigma Cat 8 uses standard RJ45 connectors and automatically negotiates speed with Cat 5e, 6, and 7 devices, maintaining maximum backward compatibility.
5. What latency can I expect in real applications?
Latency is typically below one microsecond (1 µs), providing instantaneous communication for real-time video, gaming, and control systems without jitter or delay.
6. Can Sigma Cat 8 be used outdoors?
Yes. The Outdoor UV jacket option is UV-resistant and moisture-sealed for use in direct sunlight and variable temperatures without signal degradation.
7. What length maintains full 40 Gbps performance?
Sigma Cat 8 maintains full 40 Gbps performance up to 30 meters and supports 10G or 25G speeds up to 100 meters depending on the hardware configuration.
8. Is it suitable for audio over IP applications?
Yes. The low-latency architecture and bit-perfect signal delivery make Sigma Cat 8 ideal for professional audio protocols such as Dante™, AVB, and Milan.
9. Does Sigma Cat 8 support industrial automation networks?
Engineered for deterministic TCP/UDP traffic, Sigma Cat 8 provides stable, jitter-free communication required by PLC, robotics, and IoT control systems.
10. How is every cable tested for quality assurance?
Each Sigma Cat 8 cable is factory-tested for impedance accuracy, return loss, FEXT/NEXT attenuation, and PoE++ thermal endurance to ensure compliance with ANSI/TIA-568.2-D and ISO/IEC 11801 Class I standards.
Upgrade once — connect for the next decade. With unrivaled speed, shielding, and PoE++ power delivery, the Sigma Cat 8 Ethernet Cable is the pinnacle of high-performance copper networking. Unleash the full potential of your infrastructure today.
4 Reasons Pros Buy Direct from Conversions Tech
Headquartered in business-friendly Wyoming, we design, test, and ship every product from inside the United States—delivering genuine “Made-for-America” quality without the big-box markup.
Our in-house team owns every CAD file, mold, and QA station behind our weatherproof boxes, conduit bodies, and power inverters. Vertical control means tighter tolerances, UL-listed safety, and up to 30 % lower cost than private-label imports.
Thousands of SKUs sit ready to go. Orders placed by 2 p.m. ship the same day, keeping contractors, OEMs, and distributors on schedule.
Need a torque spec or an OEM quote at dawn? You’ll speak directly with the Conversions Tech engineering desk—not a script reader—for instant answers, custom kitting, and private-label options.
Bottom line: For rugged, code-compliant electrical solutions shipped fast from a trusted U.S. source, choose Conversions Tech and build it right the first time.
