InfiniBand cable CBO 49Y7891-BL 3 m QSFP black

Passive InfiniBand cable CBO 49Y7891-BL 3 m QSFP black is a fixed-length copper interconnect designed for short-reach, high-throughput links between compatible QSFP ports. With a 3 m length and QSFP terminations, this cable supports low-latency data transfer for server-to-switch, switch-to-switch or switch-to-storage connections in data centers and high-performance computing (HPC) environments. The black outer jacket provides standard mechanical protection while keeping the physical profile compact for dense rack installations.

Advantages

This passive InfiniBand cable offers reliable signal integrity for short-distance links without requiring additional power or active signal conditioning. The QSFP connectors deliver a standardized physical interface for broad compatibility with equipment that supports QSFP form-factor ports. Its fixed 3 m length simplifies planning in rack layouts and reduces uncertainty about cable slack. The cable’s copper construction enables low latency and consistent throughput suitable for latency-sensitive applications.

Suitable for

• Direct connections between QSFP-enabled switches and routers
• Server-to-switch links in data center racks
• Interconnects for storage arrays and fabric-attached storage systems
• Short-reach links in high-performance computing clusters

Key specifications

• Connector type: QSFP on both ends
• Cable length: 3 m fixed length
• Media: passive copper assembly
• Color: black outer jacket
• Application: short-reach, high-speed interconnects for InfiniBand/QSFP environments
• Latency: optimized for low-latency device-to-device links

How to use

Install the cable by inserting each QSFP connector into the corresponding QSFP port on the network devices, ensuring the latch engages securely. Route the cable within the rack to avoid tight bends and mechanical stress; maintain the manufacturer’s recommended minimum bend radius for copper assemblies. For best performance, connect directly between QSFP ports and avoid using adapters or unapproved breakout modules. Verify link status and negotiated speed via device management interfaces after connection.

Recommendations

Use this passive QSFP copper cable for short, fixed-length links where low latency and predictable performance are required. Avoid deploying it for distances beyond 3 m or in environments where electromagnetic interference is significant; in those cases consider shielded routing or alternative active or optical solutions.