BlueOptics ET7302-DAC-0.5M-BL InfiniBand/fibre optic cable SFP28 0.5m Male/Male

The BlueOptics ET7302-DAC-0.5M-BL InfiniBand/fibre optic cable SFP28 0.5m Male/Male is a 0.5 metre direct attach cable (DAC) with SFP28 male connectors on both ends. It is a passive twinax copper cable designed for short-distance, high-speed links within racks and between adjacent racks. The cable supports 25GBase-CR electrical signalling and is suitable for Ethernet, FCoE, Fibre Channel and InfiniBand applications up to 25 Gbit/s on a 0.5 m span. The construction follows MSA-compliant form factors and uses 30 AWG conductors to provide reliable connectivity for switches, routers, storage systems and other hardware that accept SFP28 passive DACs.

Advantages

This 0.5 m SFP28 DAC offers low latency and low power consumption characteristics typical of passive twinax copper assemblies. It is compatible with common hardware platforms that support 25GBase-CR SFP28 direct attach connections and is produced using industry-grade components to ensure long-term operation and reduced failure rates. The short fixed length simplifies rack cabling, reduces signal attenuation compared with longer copper runs, and provides a cost-effective connectivity option for dense rack environments.

Suitable for

• High-speed links between adjacent rack units and within rack enclosures
• 25GBase-CR connections for switches, routers and top-of-rack devices
• Storage and server interconnects using SFP28 ports
• Ethernet, FCoE, Fibre Channel and InfiniBand applications up to 25 Gbit/s

Key specifications

• Connector type: SFP28 male to SFP28 male
• Length: 0.5 metres
• Cable type: Passive twinax copper (DAC)
• Conductor size: 30 AWG
• Supported data rate: up to 25 Gbit/s
• Compliance: MSA-compliant SFP28 form factor
• Typical application: short-reach rack connectivity

How to use

Install the BlueOptics ET7302-DAC-0.5M-BL by inserting each SFP28 connector into compatible SFP28 ports on the devices to be linked, ensuring the connectors are fully seated and the retaining latches engage. Use the cable for direct electrical signalling between adjacent rack devices or within a single rack where a 0.5 m fixed-length passive DAC meets the equipment requirements. Verify that the connected devices support passive 25GBase-CR DAC operation and check port LEDs or management interfaces for link status after insertion.

Usage recommendations

Use this passive DAC for short, fixed-length links where low latency and low power are priorities; avoid bending the cable beyond the manufacturer’s recommended bend radius and do not use the cable for runs exceeding its 0.5 m length rating. Confirm device compatibility with SFP28 passive DACs before deployment and, where available, test a sample in your target hardware to ensure full functionality.