SFP28 DAC Cable BlueOptics SFP28-DAC-1M-LC 1m Male/Male

The BlueOptics SFP28-DAC-1M-LC is a 1 meter SFP28 direct attach copper (DAC) cable with male connectors on both ends, designed to provide a reliable, low-latency connection for 25GbE networking equipment. Its compact, fixed-length form factor simplifies point-to-point links between switches, routers, NICs and servers in data centers and high-performance computing racks. The cable is specified for short-reach connections where a copper DAC offers lower cost and power consumption compared with active optical modules.

Advantages

This SFP28 DAC cable offers deterministic performance and minimal signal conversion overhead thanks to its direct-attach copper design. The 1 m length reduces clutter and insertion loss for close-proximity connections while maintaining electrical integrity for 25 Gbit/s links. Its male SFP28 interfaces ensure compatibility with standard SFP28 cages and cages supporting SFP+/SFP28 form factors. The cable’s compact construction and black color help integrate into dense rack environments without adding active components or extra power draw.

Suitable for

• Short-reach 25 Gigabit Ethernet links within racks
• Direct connections between switches, routers and servers
• High-performance computing clusters and data center top-of-rack links
• Laboratory and testbench environments requiring low-latency copper links

Key specifications

• Interface: SFP28 male to SFP28 male
• Nominal length: 1 meter
• Supported data rate: 25 Gbit/s
• Transmission medium: Direct attach copper
• Connector colour/housing: black cable jacket
• Form factor: fixed-length twinax DAC

How to use

Insert each male SFP28 connector into the corresponding SFP28 port on networking equipment until the latch engages. Ensure both devices are powered down or follow hot-plugging recommendations of the equipment vendor if hot insertion is supported. Verify link status through device LEDs or management interfaces and confirm negotiated speed is 25 Gbit/s. For removal, depress the connector latch and withdraw the cable straight out to avoid damaging the port.

Recommendations

Use the cable for short, rack-level connections; avoid routing it near sources of strong electromagnetic interference. Do not bend the cable beyond manufacturer-recommended bend radius and avoid mechanical strain on connector ends. For longer distances or when isolation from electrical noise is required, consider optical transceivers instead of a DAC solution.