SFP DAC kabel BlueOptics SFP-DAC25-1M-BL 1 m SFP28 samec-samec

The BlueOptics SFP-DAC25-1M-BL is a 1 metre SFP28 direct attach copper cable (DAC) designed for short-range, high-speed connections in rack environments. With SFP28 male connectors on both ends and a 25GBase-CR electrical interface, the cable provides low-latency, energy-efficient links between switches, servers and storage devices. This passive twinax copper assembly is suitable for adjacent-rack and in-rack interconnects where cable length is limited to around one metre.

Advantages

The cable supports 25 Gbit/s data rates with low power consumption and minimal latency, making it suitable for latency-sensitive applications. As a passive DAC with 30 AWG twinax construction and SFP28 terminations it requires no external power or active electronics, which reduces failure points and simplifies installation. The product is manufactured to MSA-compliant form factors and uses industry-standard components to ensure compatibility with major networking platforms that accept SFP28 DACs.

Suitable for

• Connecting switches to servers in data centre racks
• Top-of-rack and adjacent-rack interconnects
• Storage area network links and server clustering

Key specifications

• Connector type: SFP28 male to SFP28 male
• Length: 1 metre
• Nominal data rate: up to 25 Gbit/s
• Media: passive twinax copper
• Wire gauge: 30 AWG
• Protocol support: Ethernet, FCoE, Fibre Channel and InfiniBand (subject to host support)
• Compliance: MSA-compliant SFP28 form factor

How to use

Insert each SFP28 plug into compatible SFP28 ports on the devices to be linked, ensuring the retainers latch and the connectors seat fully. Use the cable for short-distance electrical connections where both endpoints explicitly support passive DAC cables at the intended data rate. Verify link settings and firmware compatibility on the connected devices if the link does not come up immediately, and consult the host vendor documentation for any required port configuration.

Recommendations

For reliable operation, route and secure the cable inside the rack to avoid excessive bending or mechanical strain; maintain bend radii and keep the cable away from sharp edges and heat sources. Use this passive DAC for short interconnects only and request a test sample if compatibility with a particular hardware platform needs verification.