Cable Twinax SFP28 CBO SFP28-DAC-5M-SS-BL 5 m macho a macho 25 Gbit/s

The SFP28 Twinax Cable CBO SFP28-DAC-5M-SS-BL 5 m Male-to-Male 25 Gbit/s is a direct-attach copper cable for short-reach, high-speed connections in data center and rack environments. It features SFP28 male connectors at both ends and supports 25 Gbit/s link speeds, enabling direct interconnects between switches, network interface cards (NICs) and servers. The assembly is intended for low-latency, power-efficient connections where fibre transceivers are not required.

Advantages

The cable provides a cost-effective, low-power alternative to optical transceivers for short-distance links, with plug-and-play simplicity that requires no additional configuration. Its fixed 5 m length reduces clutter and simplifies cable management in racks while the SFP28 form factor ensures compatibility with equipment that accepts SFP28 DAC modules. The design minimizes latency and power consumption compared with active optical solutions for equivalent link speeds.

Suitable for

• Short-reach server-to-switch connections within the same rack or adjacent racks
• High-density top-of-rack switch interconnects
• Direct connections between NIC ports and switch ports operating at 25 Gbit/s
• Bench testing and temporary interconnects during maintenance or deployment

Key specifications

• Connector type: SFP28 male-to-male
• Cable type: Twinax direct-attach copper
• Maximum data rate: 25 Gbit/s per lane
• Cable length: 5 meters
• Latency: low, suitable for short-reach interconnects
• Power: passive, no external power required

How to use

Install the SFP28 twinax cable by inserting each SFP28 connector into the corresponding SFP28 port until the latch engages. Ensure both devices are powered off or follow hot-plug guidance of your hardware vendor if connecting live. The cable is plug-and-play and typically requires no drivers or configuration; verify link status on connected devices and confirm 25 Gbit/s link negotiation where applicable. For best performance, avoid sharp bends and excessive tension along the cable run.

Recommendations

Use this cable for short, direct connections within racks and between adjacent racks; avoid runs beyond the specified 5 m length. Keep connectors clean and handle the cable by the connector housings when plugging or unplugging to maintain reliable electrical contact and long-term performance.