Cable Direct Attach SFP28 CBO SFP28-DAC-5M-MT-BL 5 m macho a macho 25 Gbit/s

CBO SFP28-DAC-5M-MT-BL is a 5 m direct attach copper (DAC) cable with SFP28 male-to-male connectors supporting 25 Gbit/s data rates. It is intended for short-reach connections inside racks and between adjacent network equipment and offers a plug-and-play alternative to optical transceivers by eliminating separate optics. The cable is fitted with low-profile SFP28 housings to match standard SFP28 ports and provides a reliable, low-latency physical link for data center uplinks, top-of-rack switches and server interconnects.

Advantages

The SFP28 direct attach cable delivers high bandwidth at reduced cost and power compared with active optical solutions, making it suitable for dense, short-distance links. Its fixed copper construction provides stable signal integrity and minimal latency for 25 Gbit/s serial lanes while simplifying inventory by removing the need for separate transceivers and optical modules. The 5 m length balances reach and cable management within racks and across adjacent cabinets.

Suitable for

• Top-of-rack switch to leaf or server connections in data centers
• Short-reach server-to-server links within the same rack or adjacent racks
• Switch-to-switch uplinks where 25 Gbit/s direct copper is supported
• Environments prioritizing low latency and reduced power consumption

Key specifications

• Connector type: SFP28 male-to-male
• Data rate: 25 Gbit/s per cable
• Cable length: 5 meters
• Medium: direct attach copper (passive DAC)
• Typical use: short-reach, in-rack or adjacent-rack interconnects

How to use

Install the cable by inserting each SFP28 connector into compatible SFP28 ports on the devices until the latch engages. Ensure both devices support passive SFP28 DAC connections and are powered off or follow hot-plug procedures recommended by the equipment vendor. After insertion, verify link status and speed via the device management interface. No additional optics, transceivers or configuration should be required for standard direct-attach operation; monitoring and firmware compatibility checks are recommended for full interoperability.

Recommendations

For optimal performance, route the cable to avoid tight bends and mechanical strain, maintain separation from high-electrical-noise sources when possible, and use lengths appropriate to the rack layout to minimise excess slack. Confirm vendor compatibility and firmware support for passive DACs before deployment in production networks.