Cable DAC SFP28 BlueOptics SFP28-DAC-3M-NA 3 m conector/conector

The BlueOptics SFP28-DAC-3M-NA 3m Male/Male direct attach copper (DAC) cable provides a short-range, low-latency connection for SFP28 ports. Designed for high-speed data transmission between switches, servers and other networking equipment, this 3 metre cable uses fixed male SFP28 connectors on both ends to ensure direct compatibility with SFP28 cages. The cable is suitable for top-of-rack and server-rack interconnects where a reliable, low-power link is required.

Advantages

This SFP28 DAC cable offers predictable latency and stable signal integrity for 25Gbps links while consuming minimal power compared with optical transceivers. The fixed male SFP28 ends eliminate the need for separate transceivers, simplifying installation and reducing component count. At 3 metres length the cable balances reach and cable management in data centre racks, and its compact form factor reduces airflow obstruction and weight in dense deployments.

Suitable for

• Short-range 25Gbps connections between switches
• Direct server-to-switch links in rack environments
• Top-of-rack and aggregation switching within a cabinet
• Low-latency links in high-performance computing or virtualization hosts

Key specifications

• Cable length: 3 m
• Connector type: SFP28 (male) on both ends
• Data rate support: 25Gbps class (SFP28 standard)
• Product colour: Black
• Weight: 0.08 kg
• Physical medium: direct attach copper

How to use

Insert each male SFP28 connector into the corresponding SFP28 port on the network devices until the connector latches. Ensure both devices are powered and supported for SFP28 DAC connections; check port status indicators and device configuration for link negotiation. Route the cable to avoid sharp bends and excessive strain; secure with cable ties if necessary to maintain proper airflow and rack organization.

Recommendations

Verify firmware and hardware compatibility of network devices before deployment. Use this 3 metre DAC cable for short intra-rack or adjacent-rack connections where 25Gbps performance and low latency are required, and avoid using in environments that demand longer distances or optical isolation.