Mellanox LinkX - Câble d'attache directe 100GBase - QSFP28 pour QSFP28-3 m - fibre optique - SFF-8665/IEEE 802.3bj - sans halogène, passif - noir

Mellanox LinkX 100GBase Direct Attach Cable – QSFP28 to QSFP28, 3 m

The Mellanox LinkX 100GBase direct attach cable is engineered for high‑performance networking environments that demand reliable, low‑latency connectivity at the 100 Gbps data rate. This cable features a compact 3‑meter length and utilizes the industry‑standard SFF‑8665/IEEE 802.3bj specification, ensuring seamless integration with modern QSFP28 interfaces.

Key Design Features

• Passive, Halogen‑Free Construction: The cable is built without halogen compounds, reducing the risk of toxic fumes in case of fire and complying with stringent environmental regulations. Its passive design eliminates active components, resulting in lower power consumption and simplified deployment.
• Black Color Coding: A distinctive black finish not only provides a professional aesthetic but also aids in cable management by clearly distinguishing it from other cabling types within dense data‑center racks.
• 3 Meter Length: The optimal length balances flexibility and signal integrity, allowing for straightforward routing between switches or servers without excessive slack that could introduce mechanical stress.
• Dual QSFP28 Connectors: Both ends of the cable feature high‑density QSFP28 sockets, enabling direct attachment to compatible Mellanox or other vendor equipment. This eliminates the need for intermediate transceivers and reduces potential points of failure.

Performance Characteristics

The cable is engineered to support 100 Gbps per lane, delivering a total throughput of 400 Gbps across four lanes. Its optical fiber core ensures minimal attenuation over the 3‑meter span, maintaining signal integrity even in high‑density server environments. The passive design also contributes to lower latency compared to active cables, making it ideal for latency‑sensitive workloads such as high‑frequency trading or real‑time analytics.

Compliance and Standards

• SFF‑8665/IEEE 802.3bj: This specification governs the mechanical, electrical, and optical characteristics of 100GBase direct attach cables, guaranteeing interoperability across different vendors’ equipment.
• Halogen‑Free Certification: The cable meets or exceeds industry standards for halogen‑free materials, ensuring compliance with safety regulations in data centers and high‑security facilities.

Installation and Deployment

Deploying the Mellanox LinkX cable is straightforward. Simply insert each QSFP28 connector into the corresponding port on your switch or server chassis. The passive nature of the cable means no additional power supplies are required, simplifying rack space management. Because the cable is 3 meters long, it can be routed directly between adjacent modules or across a single rack tier without the need for splicing or patch panels.

Typical Use Cases

• High‑Performance Computing (HPC): Connect compute nodes in an HPC cluster where low latency and high bandwidth are critical.
• Enterprise Data Centers: Link servers, storage arrays, or network switches within a single rack to reduce cable clutter.
• Cloud Infrastructure: Provide direct 100 Gbps links between hypervisors and storage backends in virtualized environments.

Technical Specifications Summary

Conclusion

The Mellanox LinkX 100GBase direct attach cable delivers a blend of high performance, safety compliance, and ease of deployment. Its passive, halogen‑free design, combined with the robust QSFP28 interface and adherence to SFF‑8665/IEEE 802.3bj standards, makes it an excellent choice for any organization seeking reliable 100 Gbps connectivity within a compact, rack‑friendly form factor.