InfiniBand/fibre optic cable SFP28 BlueOptics TAPCABLE28-0.5M-BL 0.5m Male/Male

The BlueOptics TAPCABLE28-0.5M-BL is a 0.5 m InfiniBand / fibre optic cable with SFP28 male-to-male connectors designed for short-reach, high-speed interconnects. It supports 25G data rates and is intended for rack-to-rack or intra-rack connections in data centres and high-performance computing environments. The cable follows SFP28 / 25GBase-CR electrical interface conventions and is manufactured to industry Multi-Source Agreement (MSA) guidelines for mechanical and electrical interoperability.

Advantages

The 0.5 m length and SFP28 connectors minimise loss and latency for short connections while providing a compact and reliable physical link. Passive twinax construction provides low power consumption and simple compatibility with systems that support passive DAC SFP28 links. Components and manufacturing follow MSA and common industrial standards to ensure stability and predictable lifetime behaviour in professional environments.

Suitable for

• Connecting switches, routers and NICs in the same rack or adjacent racks
• Short-distance InfiniBand or Ethernet 25G links in data centre topologies
• High-performance computing clusters and storage system interconnects

Key specifications

• Cable type: SFP28 to SFP28 direct attach (twinax / passive DAC)
• Nominal length: 0.5 m
• Supported data rate: up to 25 Gbps
• Connector gender: male / male
• Wire gauge: 30 AWG twinax conductor
• Compliance: MSA-compatible SFP28 electrical and mechanical interface
• Typical power consumption: very low (passive cable, no active components)

How to use

Insert each SFP28 connector into the corresponding SFP28 port on both devices until the latch engages. Ensure both devices support passive SFP28 DACs and the chosen signalling protocol (Ethernet 25G, FCoE, Fibre Channel or InfiniBand) is configured on the interfaces. Avoid sharp bends at the cable ends and secure the cable to avoid strain on the connectors. No external power or configuration is required for the cable itself.

Recommendations

Use the BlueOptics 0.5 m SFP28 cable for short, high-bandwidth links inside racks or between adjacent racks. Verify hardware support for passive DACs before deployment and avoid routing the cable near high-EMI sources. For longer runs or active signal conditioning requirements, consider optical SFP28 modules and fibre transceivers instead of a passive twinax DAC.