Cable Direct Attach de cobre CBO SFP28 SFP28-DAC-2M-NG-BL, 2 m, 25 Gbit/s

CBO SFP28 direct attach copper cable SFP28-DAC-2M-NG-BL, 2 m, 25 Gbit/s is a 2‑meter passive DAC engineered for 25 Gbit/s SFP28 ports. The cable offers a short-reach copper connection between compatible network devices, enabling low-latency and energy-efficient links for server-to-switch, switch-to-switch or NIC-to-switch connections. It is intended for environments where predictable performance, low power consumption and cost-effective cabling are required, such as data center racks and high-density network aggregation points.

Advantages

The direct attach copper design provides fixed low latency and reduced power usage compared with active optical solutions. Being a passive SFP28-compatible cable, it removes the need for separate transceivers and simplifies inventory and deployment. Its 2 m length fits typical rack layouts and short-reach topologies, delivering stable 25 Gbit/s signalling while lowering acquisition and operational costs.

Suitable for

• Short-reach uplinks between switches and aggregation devices
• Server-to-top-of-rack switch connections in data center racks
• Direct links between network interface cards and switches
• High-density patching and cross-connects where fiber is not required

Key specifications

• Connector type: SFP28 direct attach copper
• Length: 2 meters
• Maximum data rate: 25 Gbit/s per channel
• Form factor: SFP28 passive twinax cable
• Latency: low, suitable for short-reach connections
• Power: passive operation (no external power required)

How to use

Install the cable by inserting each SFP28 connector into the appropriate SFP28 port on the two devices to be connected. Ensure both devices support 25 Gbit/s SFP28 passive DAC modules and that ports are configured for the required link speed. Route the cable within the rack to avoid sharp bends and mechanical stress; typical installation requires securing the cable to rack rails or cable management arms to prevent strain on connectors. No additional transceivers, power supplies or configuration files are required beyond standard network port settings.

Recommendations

Use this 2 m direct attach copper cable for short-distance links inside racks or between adjacent racks. Verify compatibility with device vendor specifications for passive SFP28 cables and confirm port firmware supports fixed-rate 25 Gbit/s operation. Avoid tight bends and excessive pulling force; maintain cable bend radius consistent with manufacturer guidance to preserve signal integrity.