InfiniBand fibre optic cable BlueOptics 25GB-4-C03-QSFP28 3 m 4xSFP28 Black

The BlueOptics 25GB-4-C03-QSFP28 3 m InfiniBand fibre optic cable is a multimode assembly with a QSFP28 plug on one end and four SFP28 plugs on the other, intended for high-throughput server and switch interconnections. At 3 meters length and with a black jacket, the cable supports 25 Gbit/s per lane aggregated over the QSFP28 interface and is suitable for short-reach links inside racks and between adjacent racks where low-latency, high-bandwidth connectivity is required. Male-to-male connectors simplify direct device connections without additional adapters.

Advantages

This InfiniBand fibre optic cable provides stable high-speed data transmission and low signal loss across short distances. The QSFP28 to 4xSFP28 configuration enables flexible cabling between modern QSFP28 ports and multiple SFP28 ports while maintaining performance. The standardized connector types and robust jacket ensure consistent mechanical fit and protection in dense cabling environments.

Suitable for

• Server-to-switch connections in data centers
• Interconnects between network appliances with QSFP28 and SFP28 ports
• Short-reach links inside server racks and between adjacent racks
• High-bandwidth, low-latency storage and compute clusters

Key specifications

• Connector configuration: QSFP28 to 4 × SFP28
• Length: 3 m
• Data rate: designed for 25 Gbit/s per SFP28 lane (aggregate via QSFP28)
• Cable type: multimode fibre suitable for short-reach links
• Outer jacket color: black
• Connector gender: male-to-male

How to use

Inspect both device ports and the cable connectors for damage or debris before installation. Insert the QSFP28 end into the device with the corresponding port and then connect each SFP28 plug to its intended SFP28 port until the connectors latch. Route the cable to avoid sharp bends and excessive tension, keeping bend radii within manufacturer guidelines for multimode fibre. For removal, depress the latch on each connector and withdraw straight out to avoid stress on the fibre and ports.

Recommendations

Use this cable for short-distance, high-speed interconnects inside racks and between adjacent racks. Maintain proper fibre handling practices: avoid kinks, keep connector endfaces clean using approved cleaning tools, and secure cables to prevent movement that could stress connectors. Verify device compatibility with QSFP28 and SFP28 interfaces and ensure both ends support the intended 25 Gbit/s operation mode.