CBO SFP28 Direct Attach Cable SFP28-DAC-3M-UQ-BL 3 m Male-to-Male 25 Gbit/s

The CBO SFP28 Direct Attach Cable SFP28-DAC-3M-UQ-BL is a 3-meter passive copper connection with SFP28 male connectors at both ends, engineered for short-reach 25 Gbit/s links. It is intended for direct interconnects between SFP28 ports on switches, network interface cards (NICs) and routers, offering low latency and stable throughput without the need for optical transceivers. The cable is suitable for high-density server racks and data center top-of-rack or end-of-row deployments where cost-efficiency and compact cabling are priorities.

Advantages

This direct attach cable supports 25 Gbit/s data transmission using SFP28 interfaces while eliminating the need for separate optical modules, which reduces per-link cost and power consumption. The passive copper construction provides predictable latency and signal integrity for short distances, and the integrated SFP28 male connectors ensure plug-and-play compatibility with standard SFP28 ports. The 3 m length balances reach and cable management in typical rack layouts.

Suitable for

• Short-reach server-to-switch connections in data centers
• Interconnects between high-performance NICs and switches
• Patch connections in top-of-rack and end-of-row network architectures
• Environments where optical transceivers are unnecessary or cost-prohibitive

Key specifications

• Connector type: SFP28 male-to-male
• Data rate: up to 25 Gbit/s
• Length: 3 meters
• Cable type: passive copper direct attach
• Intended reach: short-reach interconnects within racks or adjacent racks

How to use

Install the cable by inserting each SFP28 male connector into the corresponding SFP28 port on the devices to be connected. Ensure both devices are powered down or that hot-plugging is supported by the equipment according to manufacturer guidelines. Verify link status and configuration in the device management interface after connection. Route the cable to avoid sharp bends and to maintain airflow in racks; secure with cable ties or organizers as needed.

Recommendations

For reliable performance, use this 3 m SFP28 DAC for connections within the same rack or between adjacent racks. Confirm compatibility with device firmware and port settings prior to deployment, and avoid exceeding the specified length to maintain signal quality. Store and handle connectors carefully to prevent contamination or damage to the mating surfaces.