SFP28 DAC Cable BlueOptics SFP28-DAC-1M-AT-BL 1m Male/Male

The BlueOptics SFP28-DAC-1M-AT-BL is a 1 meter SFP28 Direct Attach Copper (DAC) cable with SFP28 male connectors on both ends. Designed for short-range, high-speed data links, this passive twinax copper cable supports 25GBase-CR signaling for direct electrical connections between compatible network devices. The cable is intended for rack and adjacent-rack connections in data centers, providing a compact, low-power option for linking switches, servers and storage systems that support SFP28 DAC modules.

Advantages

This SFP28 DAC cable offers low latency and low power consumption due to its passive twinax design and 30 AWG conductors. It is manufactured to MSA standards for mechanical and electrical compatibility with SFP28 ports and is compatible with major hardware platforms that support 25GBase-CR. The short 1 m length simplifies rack cabling and reduces signal impairment compared with longer copper runs, while the passive construction contributes to a low failure rate and straightforward deployment.

Suitable for

• Interconnects between switches within the same rack or adjacent racks
• Direct links from servers to top-of-rack or leaf switches
• Storage system connections requiring short-distance 25 Gbit/s links

Key specifications

• Connector type: SFP28 male to SFP28 male
• Length: 1 meter
• Data rate: up to 25 Gbit/s (25GBase-CR)
• Cable type: passive twinax copper (30 AWG)
• Compliance: MSA-compatible electrical and mechanical interface
• Colour: black
• Weight: approximately 0.08 kg

How to use

Insert each SFP28 connector into the corresponding SFP28 port of the devices you intend to interconnect, ensuring the latches engage and the connectors seat fully. Verify the connected hardware supports passive DAC cables and the 25GBase-CR protocol. After physical connection, confirm link status and speed through the device management interface; no additional configuration is required on most platforms beyond enabling the appropriate port speed and protocol.

Recommendations

Use this 1 m SFP28 DAC cable for short, point-to-point connections inside racks or between adjacent racks. Avoid excessive bending or kinking; follow vendor bend-radius guidelines for twinax cables. Ensure both endpoints explicitly support passive SFP28 DAC modules and 25GBase-CR to guarantee reliable operation.