InfiniBand/fibre optic cable BlueOptics VXFJY-BL 3 m SFP28

The BlueOptics VXFJY-BL is a 3 m InfiniBand/fibre optic cable with SFP28 connectors designed for high-speed data transfer. It provides a direct attach copper/twinax solution compatible with 25GBase-CR links and SFP28 ports, enabling short-range connections between switches, routers, storage systems and servers in racks and adjacent rack rows. The cable is MSA-compliant and intended to deliver reliable electrical signal transfer at up to 25 Gbit/s over a 3 metre distance.

Advantages

The cable offers a compact and low-latency connection suitable for high-density rack installations. Being a passive 25G twinax direct attach cable, it consumes minimal power and does not require active components, which reduces failure points and simplifies deployment. Components are selected to meet industry MSA standards so the product aims to provide long service life and consistent interoperability with major hardware platforms that support SFP28 25GBase-CR connections.

Suitable for

• Short-range 25 Gbit/s links between switches and network devices within the same rack or adjacent racks
• Connections between servers and top-of-rack switches supporting SFP28
• Fibre channel, Ethernet and InfiniBand applications up to 25G where passive DAC twinax is supported
• High-density data centre rack cabling and hardware interconnects

Key specifications

• Length: 3 metres
• Connector type: SFP28 to SFP28
• Data rate support: up to 25 Gbit/s
• Cable type: passive twinax/direct attach copper
• Wire gauge: 30 AWG
• Standards: MSA-compliant for SFP28 25GBase-CR applications
• Power consumption: passive design with negligible additional power draw

How to use

Install the BlueOptics VXFJY-BL by inserting each SFP28 connector into the corresponding SFP28 port on your compatible devices. Ensure both devices support passive 25GBase-CR direct attach twinax connections and that ports are powered down or follow the manufacturer's hot-plug guidance before insertion or removal. For rack installations use appropriate cable routing to avoid strain on the connectors and to maintain airflow. No additional transceivers or power supplies are required for passive operation.

Usage recommendations

Verify compatibility with your switch, router or storage vendor before deploying. Use the 3 m length for links inside the same rack or between adjacent racks; for longer distances choose active optical cables or transceiver-plus-fibre solutions. Handle SFP28 connectors by their housing, avoid bending the twinax cable sharply, and store unused cables in protective covers to extend service life.