BlueOptics SC282701L3M26 InfiniBand/fibre optic cable 3 m QSFP28 4xSFP28 Black

The BlueOptics SC282701L3M26 InfiniBand/fibre optic cable is a 3 m passive cable that connects a QSFP28 port to four SFP28 ports, enabling multi-lane high-speed data links. Designed for data centre and high-performance computing environments, this cable supports consolidated connectivity between switches, servers and network adapters. The male QSFP28 to 4× male SFP28 configuration provides a compact, single-cable solution for splitting a 4-lane 100Gb/s interface into four independent 25Gb/s links without additional transceivers.

Advantages

This BlueOptics cable offers a single-cable breakout option for QSFP28 ports, reducing cable clutter and simplifying rack cabling. The 3 m length is suitable for short-reach interconnects inside racks or across adjacent cabinets. Its optical fibre construction ensures electromagnetic immunity and predictable signal integrity, while standardized connectors ensure compatibility with equipment that supports QSFP28 and SFP28 interfaces.

Suitable for

• Breaking out a QSFP28 100Gb/s port into four 25Gb/s SFP28 ports
• Short-reach connections inside racks and between adjacent server or switch units
• InfiniBand and Ethernet switching fabrics that use QSFP28 and SFP28 optics
• High-performance computing clusters and storage networks requiring lane-split connectivity

Key specifications

• Cable type: fibre optic breakout cable (QSFP28 to 4× SFP28)
• Length: 3 metres
• Connector configuration: one male QSFP28 to four male SFP28
• Supported speeds: up to 100Gb/s aggregate (4×25Gb/s lanes)
• Colour: black

How to use

Insert the QSFP28 connector into the host 100Gb/s QSFP28 port and insert each SFP28 connector into the target 25Gb/s SFP28 ports on switches, servers or adapters. Ensure connectors are fully seated and locked according to the equipment manufacturer’s guidance. Route the cable to avoid sharp bends and mechanical strain; use appropriate cable management to maintain bend radius and reduce stress on connectors. Power down devices only if required by the equipment vendor before making or breaking connections.

Recommendations

Use this 3 m breakout fibre cable for reliable short-reach lane-splitting inside racks or between adjacent cabinets. Verify port compatibility and firmware support on your networking equipment to ensure proper operation at the intended speeds. Maintain fibre cleanliness by inspecting and, if necessary, cleaning connector endfaces before insertion.