SFP28 DAC Cable BlueOptics SFP28-DAC-5M-UQ 5m Male-Male

The BlueOptics SFP28-DAC-5M-UQ is a 5-meter SFP28 Direct Attach Copper (DAC) cable with male-to-male connectors designed for high-speed 25Gbps links. Built for short-reach connections inside racks and between adjacent racks, this cable provides a compact, low-latency physical link for switches, servers and network interface cards that support SFP28 ports. The BlueOptics design emphasizes reliable electrical performance and a standardized SFP28 form factor to ensure compatibility with equipment that accepts passive DAC assemblies.

Advantages

This 5m SFP28 DAC cable offers a cost-effective alternative to optical transceivers for short distances, delivering consistent 25Gbps throughput with low power consumption. Its male-to-male SFP28 connectors provide straightforward plug-and-play installation and minimized signal loss compared with longer copper assemblies. The fixed-cable, direct-attach approach reduces components in the link, simplifying cable management and lowering latency for high-performance computing and data centre fabrics.

Suitable for

• Short-reach server-to-switch connections within racks
• Inter-rack links in densely populated data centres where runs are under 5 meters
• High-performance computing clusters requiring low-latency 25Gbps interconnects
• Top-of-rack and leaf-spine architectures using SFP28 ports

Key specifications

• Connector type: SFP28 male to SFP28 male
• Length: 5 metres
• Data rate: up to 25 Gbps per lane (SFP28 specification)
• Cable type: Direct Attach Copper (DAC), passive assembly
• Typical use: short-distance, in-rack or adjacent-rack links
• Form factor: SFP28 compliant housing

How to use

Install the BlueOptics SFP28-DAC-5M-UQ by aligning each SFP28 connector with the device port and inserting until the latch engages. Use this cable for direct connections between compatible SFP28 ports on switches, network interface cards and storage systems. No additional transceivers or fibre patch cords are required. Verify that both endpoints support passive DAC cables and the intended link speed, then confirm link status in your device management interface after insertion.

Recommendations

For optimal performance, route the cable to avoid sharp bends and maintain bend radii greater than the manufacturer’s minimum; keep the run within 5 metres to ensure expected signal integrity. Use in environments with appropriate airflow and minimal electromagnetic interference. Check device documentation for compatibility with passive SFP28 DACs and update firmware if required to ensure stable 25Gbps operation.