Add-On QSFPDD-8SFP56-PDAC2M-AO 400GbE DAC Cable

Overview

The Add-On QSFPDD-8SFP56-PDAC2M-AO is a 2-meter Direct Attach Copper (DAC) cable designed for high-density, high-speed networking. It breaks out a QSFP-DD port into eight SFP56 connections, enabling 400GbE connectivity to multiple 50GbE devices. This cable is engineered for data center environments where short-reach, high-bandwidth interconnects are critical for server, storage, and switch aggregation. Its passive design requires no power, simplifying deployment in dense rack configurations.

Compatibility

This cable is MSA compliant, ensuring broad compatibility with network equipment supporting QSFP-DD (Quad Small Form-factor Pluggable Double Density) and SFP56 (Small Form-factor Pluggable 56) interfaces. It is designed for use with switches, servers, and NICs that require a QSFP-DD to 8x SFP56 breakout configuration, typically found in high-performance computing clusters, AI/ML workloads, and hyperscale data centers. Verify your network equipment's QSFP-DD port specifications for breakout compatibility.

Installation Notes

The cable features pull-tab ejectors on the SFP56 connectors for secure installation and easy removal. Ensure the QSFP-DD connector is fully seated in the host port. The passive nature of the DAC cable means it draws no power from the host ports, reducing thermal load. The 2-meter length is suitable for standard rack-to-rack or intra-rack connections. Avoid sharp bends exceeding the minimum bend radius to maintain signal integrity.