CBO InfiniBand Cable SC253501K3M30 3 m QSFP to 4×SFP+ black

The CBO InfiniBand Cable SC253501K3M30 is a 3 m black QSFP to 4×SFP+ assembly designed for short-reach, high-bandwidth InfiniBand links. It provides a compact physical connection that splits a QSFP interface into four SFP+ lanes, enabling multi-lane deployments between switches, servers and storage equipment. The cable is intended for use where low-latency, high-throughput connections are required within data centers and enterprise network racks.

Advantages

This QSFP to 4×SFP+ cable supports multi-lane aggregation while preserving signal integrity over a short 3 m distance. Its compact form factor simplifies cabling in dense rack environments and reduces the need for separate breakout modules. The black jacket provides a standard, unobtrusive appearance suitable for professional installations. The assembly is built to interface directly with QSFP ports and four SFP+ transceivers, offering a practical solution for deploying InfiniBand fabric links with minimal additional hardware.

Suitable for

• Data center interconnects and rack-to-rack links
• Connecting QSFP-equipped switches to multiple SFP+ devices
• High-throughput server to switch connections
• Short-reach, low-latency InfiniBand fabrics and HPC clusters

Key specifications

• Cable length: 3 metres
• Connector configuration: QSFP on one end to four SFP+ on the other
• Colour: black
• Application: short-reach InfiniBand / high-speed interconnects
• Form factor: breakout assembly for multi-lane connectivity

How to use

Install the QSFP end into the QSFP port of the source device and insert the four SFP+ ends into the corresponding SFP+ ports on the destination device(s). Ensure ports are powered down or link negotiation is handled according to your equipment procedures before insertion or removal to avoid hot-plug issues. Verify that your switches, adapters and transceivers are configured for the expected lane mapping and data rates. Route the cable to avoid sharp bends and mechanical strain; a 3 m length provides flexibility for typical rack and cabinet layouts.

Usage recommendations

Use this cable for short-distance interconnects within the same rack or adjacent racks. Confirm compatibility with the QSFP and SFP+ modules in your equipment and follow vendor guidelines for hot-plug operations and lane configuration to ensure stable InfiniBand performance.