SFP28 Direct Attach Cable CBO SFP28-DAC-5M-GM-BL — 5 m, Male-to-Male, 25 Gbit/s

BlueOptics SFP28 Direct Attach Cable CBO SFP28-DAC-5M-GM-BL is a 5-metre passive copper twinax cable with male-to-male SFP28 connectors designed for 25 Gbit/s links. It provides a compact, power-efficient physical connection between SFP28 ports in switches, servers and network interface cards. Optimised for short-reach interconnects, the cable supports low-latency data transfer and eliminates the need for separate transceiver modules when connecting compatible ports across top-of-rack, server-to-server or aggregation environments.

Advantages

The direct attach design delivers low insertion loss and minimal latency compared with optical transceivers for short distances, while remaining energy-efficient and cost-effective. Integrated SFP28 connectors ensure plug-and-play compatibility with standards-compliant SFP28 ports and reduce rack cabling complexity. The 5 m length offers flexibility for equipment placement in racks and aisles without additional signal conditioning or external power requirements.

Suitable for

• Top-of-rack switch to aggregation switch connections
• Server-to-server high-speed links within the same rack or adjacent racks
• Connections between NICs and switch SFP28 ports in data centres
• Short-reach 25 Gbit/s links in campus and enterprise network closets

Key specifications

• Data rate: 25 Gbit/s
• Length: 5 metres
• Connector type: Male-to-male SFP28 twinax
• Medium: Passive copper twinax cable
• Typical use: Short-reach direct attach interconnects
• Latency: Low, suitable for latency-sensitive applications
• Power: Passive operation, no external power required

How to use

Insert each SFP28 connector into the corresponding SFP28 port on compatible network devices until the latch clicks into place. Ensure both endpoints support passive SFP28 direct attach copper cables and are configured for 25 Gbit/s operation. Confirm link status in the device management interface and verify correct speed and duplex settings. Route the cable to avoid sharp bends and mechanical strain; maintain recommended bend radius to preserve signal integrity.

Recommendations

Use this 5 m direct attach cable for short-distance connections where optical transceivers are unnecessary. Verify compatibility with vendor equipment and firmware, and avoid excessive bending or tension. For longer distances or when galvanic isolation is required, choose optical transceivers with appropriate fiber cabling instead.