Digitus QSFP+ 40G 1 m DAC Cable

The Digitus QSFP+ 40G 1 m DAC cable is a high-performance direct attach copper solution engineered for efficient, high-speed data transmission in demanding network environments. Designed to support data rates up to 41.2 Gbps, this cable utilizes four full-duplex channels to ensure reliable, low-latency connectivity for modern data centers and enterprise networking systems. Its robust construction and standardized QSFP+ connectors make it a dependable choice for short-range interconnections where speed and signal integrity are critical.

Advantages

This direct attach copper cable offers a significant advantage in terms of energy efficiency and cost-effectiveness compared to traditional optical transceivers for short-range applications. By providing a plug-and-play solution that eliminates the need for separate transceivers and fiber patch cords, it simplifies infrastructure management and increases port density within server racks. The cable is fully compliant with QSFP MSA and IEEE P802.3ba standards, ensuring broad compatibility across a wide range of networking hardware from major industry manufacturers.

Suitable for

• High-speed server-to-switch connections
• Data center rack-to-rack networking
• High-performance computing clusters
• Short-range network infrastructure upgrades

When it may not be suitable

This cable is designed specifically for short-range connections up to one meter and is not suitable for long-distance networking requirements where fiber optic cabling is necessary. Additionally, it is intended for use with equipment featuring QSFP+ ports and cannot be used with standard SFP or RJ45 interfaces without appropriate conversion hardware.

Key specifications

• Connector type: QSFP+ to QSFP+
• Cable length: 1 meter
• Data rate: Up to 41.2 Gbps (aggregated)
• Technology: Passive direct attach copper
• Compliance: QSFP MSA, IEEE P802.3ba

How to use

To install the cable, simply insert the QSFP+ connector into the corresponding port on your network switch, server, or storage device until it clicks securely into place. Ensure that the equipment is powered on or configured to recognize the new connection. No additional software configuration or external power supply is required, as the cable is a passive component that draws minimal power directly from the host port.

What to consider before purchase

• Verify that your networking equipment supports the QSFP+ interface.
• Ensure the one-meter length is sufficient for your specific rack layout.
• Check the compatibility list to confirm support for your specific hardware brand.

Usage recommendations

For optimal performance and to prevent signal degradation, avoid bending the cable beyond its minimum bend radius and ensure that the connectors are kept clean and free of debris before insertion.