Understanding the CAB-L400-5-N-N= Cable

The ​​CAB-L400-5-N-N=​​ is a specialized Cisco cable designed for high-density networking environments. It serves as a ​​5-meter passive twinaxial cable​​, optimized for short-range connections between switches, routers, or servers in data centers. Unlike standard Ethernet cables, it supports ​​25/40/100 Gigabit Ethernet​​ speeds with minimal latency, making it ideal for backbone infrastructure.

Key Technical Specifications

• ​​Length​​: 5 meters (16.4 feet).
• ​​Connector type​​: QSFP28 (Quad Small Form-Factor Pluggable) on both ends.
• ​​Bandwidth​​: Supports up to ​​100Gbps​​ with backward compatibility for 40G and 25G configurations.
• ​​Use case​​: Ideal for ​​leaf-spine architectures​​, top-of-rack (ToR) deployments, and high-performance computing clusters.

Compatibility and Deployment Scenarios

A common user concern is whether the CAB-L400-5-N-N= works with non-Cisco devices. While Cisco designs these cables for their Nexus and MDS series switches, ​​third-party compatibility depends on QSFP28 port support​​. Always verify vendor interoperability before deployment.

For Cisco environments, this cable pairs seamlessly with:

• ​​Nexus 9000 series switches​​ (e.g., N9K-C9336C-FX2).
• ​​UCS C-Series servers​​ with QSFP28-enabled adapters.

Why Source CAB-L400-5-N-N= from itmall.sale?

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itmall.sale offers ​​authentic Cisco-certified cables​​ with verified performance guarantees. Their inventory ensures ​​direct compatibility​​ and reduces risks of signal degradation from counterfeit products. For enterprises scaling data centers, this platform provides cost-effective solutions without compromising reliability.

Addressing Common Concerns

​​Q: Is this cable suitable for outdoor use?​​
No. The CAB-L400-5-N-N= is strictly for ​​indoor data center environments​​ due to its passive design and lack of weatherproofing.

​​Q: Can it replace fiber optics for long-distance runs?​​
Passive twinaxial cables like this are limited to ​​5 meters​​. For distances beyond 7 meters, active optical cables (AOCs) or fiber are better choices.

Final Perspective

The CAB-L400-5-N-N= exemplifies Cisco’s focus on optimizing data center efficiency. Its plug-and-play simplicity and robust performance address critical pain points in modern networking. While not a universal solution, it’s indispensable for enterprises prioritizing ​​high-speed, low-latency interconnects​​ within racks or adjacent hardware. Sourcing from trusted suppliers like itmall.sale ensures longevity and ROI in fast-evolving infrastructures.