BlueOptics XXVDACBL5M InfiniBand fibre optic cable 5 m SFP28 Male Male

The BlueOptics XXVDACBL5M InfiniBand fibre optic cable 5 m SFP28 Male Male is a 5-metre direct attach cable designed for short-distance high-speed connections in racks and between adjacent racks. The cable uses SFP28-compatible SFP28 male connectors on both ends and is suitable for 25G applications including Ethernet, FCoE, Fibre Channel and InfiniBand where SFP28 interfaces are supported. It is built to MSA-compatible physical and electrical specifications to ensure interoperability with hardware platforms that accept SFP28 DAC connections.

Advantages

This 5 m SFP28 cable provides a low-latency, low-power physical connection for short-reach links, with passive twinax copper construction that requires no active electronics in the cable. The design follows SFP28 DAC and 25GBase-CR conventions and uses industry-standard materials and connectors to provide stable signal transfer and long operating life. The passive design offers simple installation, predictable behaviour across supported platforms and reduced failure points compared with active optical transceivers for equivalent short-distance links.

Suitable for

• Short-reach server-to-switch and switch-to-switch links within racks
• Interconnections between adjacent racks in data centre environments
• 25G Ethernet, FCoE, Fibre Channel and InfiniBand links up to 25 Gbit/s over 5 m
• Hardware platforms with SFP28 DAC support, such as switches, routers and storage systems

Key specifications

• Cable type: passive twinax copper direct attach cable
• Connector type: SFP28 male to SFP28 male
• Length: 5 metres
• Data rate: supports up to 25 Gbit/s per channel over the specified distance
• Wire gauge: 30 AWG conductors
• Compliance: design follows SFP28 DAC / MSA electrical and mechanical guidelines

How to use

Install the cable by inserting each SFP28 male connector into the corresponding SFP28 port on the devices to be linked. Ensure that both devices explicitly support passive SFP28 DAC/twinax connections and that ports are powered down or follow the vendor’s hot‑plug procedure if required. After connection, verify link status and negotiated speed on both endpoints and configure device interfaces per your network settings. For reliable operation, avoid tight bends, excessive pulling force and exposure to corrosive environments.

Usage recommendations

Use this 5 m passive SFP28 DAC for short-distance, high-throughput links inside racks or between adjacent racks where 25G electrical SFP28 DAC support is documented by the equipment vendor. For longer runs or where optical isolation is required, choose appropriate active optical transceivers and fibre cabling instead.