Black Box 16.4ft QSFP+ 40-Gbps Direct Attach Cable (Black)

Overview

The Black Box QSFP-H40G-CU5M-BB is a 16.4-foot direct attach cable engineered to provide reliable 40-Gbps connections in data centers and enterprise networks. It uses passive copper technology to deliver low-latency, high-speed links between switches, routers, and servers. This cable is compatible with Cisco QSFP-H40G-CU5M= and other devices adhering to MSA and SFF-8436 standards, making it a practical choice for high-density rack environments.

Designed to minimize power consumption and heat generation, it offers an energy-efficient alternative to active optical cables. Its hot-swappable design allows for easy installation or replacement without interrupting network operations, supporting continuous uptime during maintenance or upgrades.

Key features

• Passive copper technology ensures low latency and stable 40-Gbps data transfer rates.
• Hot-swappable design enables quick installation or replacement without shutting down equipment.
• Durable CL2-rated PVC jacket protects the cable in demanding environments and extends its lifespan.
• Consumes only 0.003 watts of power, reducing energy costs and heat output in dense network setups.
• Complies with Multi-Source Agreement (MSA) and SFF-8436 standards for broad compatibility.
• Ideal for high-density, in-rack applications where space and reliability are critical.

Key specs

• Cable length: 16.4 feet (5 meters)
• Data transfer rate: up to 40 Gbps
• Connector type: QSFP+
• Power consumption: 0.003 watts
• Jacket material: CL2-rated PVC
• Standards compliance: MSA, SFF-8436

Connectivity and compatibility

This cable supports seamless connections between high-performance network devices such as switches, routers, and servers that use QSFP+ ports. It is fully compatible with Cisco QSFP-H40G-CU5M= modules and any equipment following the MSA and SFF-8436 standards, ensuring interoperability across a wide range of enterprise hardware.

• QSFP+ connectors on both ends for direct attach connections
• Compatible with Cisco and other MSA-compliant devices
• Supports 40-Gbps Ethernet and fiber channel applications

Ideal uses and environments

This cable fits well in data centers and enterprise network racks where high-speed, low-latency connections are essential. Its passive copper design and durable jacket make it suitable for environments that require energy efficiency and physical protection. IT professionals managing dense network setups will find it a cost-effective solution for maintaining fast and stable links between critical devices.