Cable de cobre CBO SFP28 Direct Attach SFP28-DAC-5M-CN-BL 5 m conector a conector 25 Gbit/s

The CBO SFP28 Direct Attach Copper Cable SFP28-DAC-5M-CN-BL is a 5 meter passive copper cable with SFP28 male connectors on both ends, designed for 25 Gbit/s links between compatible SFP28 ports. Intended for short-reach interconnects in data centers, the cable supports rack-to-rack and intra-rack connections between servers, switches and storage devices. Its passive design requires no external power and delivers low latency and low power consumption compared with optical transceivers for equivalent short distances.

Advantages

This direct attach copper cable provides a cost-effective and power-efficient way to connect SFP28 ports at 25 Gbit/s over short distances. The fixed 5 m length simplifies cabling planning for rack and adjacent-rack deployments, while the male-to-male SFP28 connectors ensure direct compatibility with SFP28 cages. The passive copper medium reduces link negotiation complexity and offers predictable latency and signal behavior for latency-sensitive applications.

Suitable for

• Short-reach server-to-switch or switch-to-switch links within racks
• Storage array connections where 25 Gbit/s performance is required
• Top-of-rack and adjacent-rack cabling in data center environments
• Environments prioritizing low latency and reduced power consumption

Key specifications

• Connector type: SFP28 male to SFP28 male
• Length: 5 meters
• Data rate: up to 25 Gbit/s
• Medium: passive copper twinax cable
• Typical application: short-reach interconnects (intra-rack, rack-to-rack)
• Latency: low, suitable for latency-sensitive links
• Power: passive design with no external power module required

How to use

Install the cable by inserting each SFP28 connector into the corresponding SFP28 port until it latches. Ensure that both devices support SFP28 passive DAC cables and that firmware or vendor compatibility requirements are met. Route the cable to avoid sharp bends and excessive strain; maintain the specified 5 m length without tension. Verify link status through the connected devices' management interfaces and monitor signal and error counters after installation to confirm reliable operation.

Recommendations

Use this 5 m passive SFP28 DAC for short-distance links inside racks or between adjacent racks where 25 Gbit/s bandwidth and low latency are required. Avoid using the cable in longer-distance runs or environments with heavy electromagnetic interference; for longer reaches or electrically noisy environments, consider active copper solutions or optical transceivers.