SFP28 DAC Cable BlueOptics SFP28-DAC-5M-PS-BL 5m Male/Male

The BlueOptics SFP28-DAC-5M-PS-BL is a 5 m SFP28 Direct Attach Copper (DAC) cable with SFP28 male connectors on both ends, designed for short-reach 25Gb/s interconnects in racks and between adjacent racks. It implements a passive twinax copper design (30 AWG) compatible with the 25GBase-CR electrical interface and follows MSA guidelines for mechanical and electrical interoperability. The cable is intended for linking switches, servers, storage arrays and other SFP28-capable network devices that support passive DAC connections.

Advantages

This 5 m DAC cable provides low-latency, low-power connectivity with a simple passive construction that reduces failure points and production cost. MSA-compliant electrical and mechanical specifications ensure broad interoperability with major hardware platforms. The twinax copper construction is suitable for short-distance high-speed data transfer and typically requires no additional transceivers or power-hungry components, yielding an energy-efficient and cost-effective connection option.

Suitable for

• Short-reach 25GbE links between switches and servers in rack and adjacent-rack environments
• Server-to-top-of-rack and switch-to-switch connections within data center racks
• High-density patching where compact, direct copper connections are preferred
• Fibre Channel, FCoE or InfiniBand applications that support 25GBase-CR electrical interfaces

Key specifications

• Length: 5 meters
• Connector type: SFP28 male to SFP28 male
• Data rate: up to 25 Gbps per lane (25GBase-CR)
• Cable type: passive twinax copper, 30 AWG
• MSA-compliant electrical and mechanical interface for SFP28 DAC
• Low power consumption and low latency suitable for short-distance links

How to use

Insert each SFP28 connector into the corresponding SFP28 port on network devices until the latch engages; ensure both ends are fully seated and that connected devices support passive DAC cables. Route the cable inside the rack or between adjacent racks avoiding sharp bends and sources of mechanical strain. Confirm link negotiation and speed settings on connected equipment and verify connectivity and performance through device management interfaces or monitoring tools.

Recommendations

Use this BlueOptics SFP28 DAC for short-range 25Gb/s connections where low latency and power efficiency are priorities. Do not exceed the specified 5 m distance for guaranteed performance, and avoid tight cable bends or excessive pulling force when installing. Verify device compatibility with passive SFP28 DACs and test links after installation.