Add-On QDD-4QSFP28-400-CU1M-AO 1m QSFP-DD to 4xQSFP28 DAC Cable

Overview

The Add-On QDD-4QSFP28-400-CU1M-AO is a 1-meter passive direct-attach copper cable designed to break out a single QSFP-DD port into four independent QSFP28 ports. This cable is essential for high-density data center networking, enabling seamless connectivity between equipment with different port types, such as connecting a 200Gbps QSFP-DD switch uplink to multiple 50Gbps QSFP28 server connections. Its passive design means no power is required, simplifying deployment and reducing potential points of failure.

Compatibility

This cable is engineered to be compatible with Cisco equipment and adheres to the QSFP-DD MSA Specification Rev 3.4. It supports aggregate data rates of 100Gbps and 200Gbps, making it suitable for environments requiring high-bandwidth interconnects. The SFF-8679 electrical interface on the QSFP-DD end and SFF-8636 management interface support ensure broad compatibility with network devices supporting these standards.

Installation Notes

The cable utilizes 28AWG to 32AWG gauge copper, providing a balance of flexibility and signal integrity for its 1-meter length. It is compliant with IEEE 802.3bj, IEEE 802.3by, and IEEE 802.3cd standards, ensuring reliable data transmission. The cable is TAA Compliant and manufactured in the United States.