DAC cable CBO CBL-QSFP-4x10GSFP-PASS-1M-F1 1 m Passive QSFP to 4×10G SFP

Passive DAC cable CBO CBL-QSFP-4x10GSFP-PASS-1M-F1 1 m Passive QSFP to 4×10G SFP is a one metre direct-attach copper cable that links a single QSFP port to four 10G SFP ports. It is built for short-reach, high-throughput interconnects in data centres and server racks where electrical connectivity without optical transceivers is preferred. The cable supports aggregation and breakout use cases, enabling multi-lane 40 Gbps interfaces to be split into four independent 10 Gbps links while maintaining low latency and simplified cabling.

Advantages

This passive DAC solution offers straightforward plug-and-play installation with no need for separate optics or power. The direct electrical connection ensures low latency and predictable signal integrity for short-distance links, and the compact one-metre length reduces rack clutter. Its breakout design provides flexible port consolidation and cost-efficient migration paths from 10G to multi-lane interfaces in top-of-rack and spine-leaf architectures.

Suitable for

Key specifications

How to use

Power down equipment if required by the vendor, then insert the QSFP end into the 40 Gbps QSFP port and connect each SFP plug into the corresponding 10 Gbps SFP ports. Ensure connectors are fully seated and that ports on both ends are configured for breakout mode if the network device requires it. Once connected, verify link status and speed through the switch or server management interface. No additional transceivers, optical modules or fibre patching are needed for operation.

Recommendations

Use this passive DAC for short-distance, within-rack interconnects up to the supported vendor-recommended range. Avoid excessive bending or tension on the cable; maintain recommended bend radius and secure routing to prevent mechanical stress. Confirm device compatibility and any firmware or configuration requirements for QSFP-to-4xSFP breakout operation before deployment.