56G QSFP+ Passive DAC Cable, 1m–7m, 30–24 AWG

• Supports 56Gbps-class Ethernet connectivity
• QSFP+ to QSFP+ passive direct attach copper design
• Four-channel architecture with up to 14.3125Gbps per channel
• Available in cable lengths from 1m to 7m
• Multiple wire gauges available from 30 to 24 AWG
• Compliant with SFF-8436
• Passive architecture for low power consumption
• Single +3.3V power supply
• Optimized electrical design for signal integrity
• Low EMI characteristics for high-density deployments
• Cost-effective alternative to short-range optical solutions
• Supports high port density and flexible network configurations
• RoHS compliant

• 56G Ethernet switch-to-switch connections
• Data center network interconnects
• Top-of-rack (ToR) networking
• Server-to-switch connections
• High-density rack-level connections
• High-performance computing infrastructure
• Storage networking
• Cloud computing infrastructure
• Short-distance network equipment interconnects
• Network expansion and port utilization

OEM and customized QSFP+ DAC solutions are available for network equipment manufacturers, system integrators, distributors, and data center operators. Available customization options may include cable length, conductor gauge, labeling, packaging, branding, and other project-specific requirements.

For large-volume deployments, cable construction and electrical performance can be tailored according to the required rack distance, equipment configuration, and installation environment. Customers can provide the target equipment, required length, wire gauge, and quantity for a project-specific evaluation.

Why are different wire gauges available for this QSFP+ DAC?

Different AWG sizes provide flexibility for different cable lengths and installation requirements. Thicker conductors, such as 24 AWG, can be advantageous for longer cable assemblies, while smaller gauges such as 28 or 30 AWG can provide greater flexibility and easier cable management in dense racks.

What is the maximum distance supported by this DAC?

The product is available for lengths up to 7 meters. The appropriate maximum length depends on the selected cable construction, conductor gauge, host equipment, and required electrical performance. For longer connections, selecting a suitable wire gauge can help maintain signal integrity.

Why choose a passive DAC instead of an optical cable?

A passive DAC uses copper conductors without active optical conversion, making it economical and power-efficient for short connections. It is particularly useful for rack-level links where the required distance is within the electrical reach of a passive copper solution.

What does 14.3125Gbps per channel mean?

The QSFP+ interface uses four parallel electrical channels. Each channel can operate at up to 14.3125Gbps, with the four channels working together to provide approximately 56Gbps of aggregate bandwidth.

How should I select the cable length?

Choose the shortest cable that comfortably reaches between the two network devices. Shorter cables generally simplify cable management and airflow, while longer options up to 7m provide additional flexibility for equipment positioned farther apart.