SFP28 Direct-Attach Copper Cable CBO 7Z57A03542-BO 5 m Male-to-Male 25 Gbit/s

This SFP28 Direct-Attach Copper (DAC) cable from BlueOptics is a 5 m male-to-male assembly designed for short-reach 25 Gbit/s connections. It connects SFP28 ports in switches, servers and network interface cards (NICs) to provide a stable 25GbE link with low latency and reduced power consumption compared with optical transceivers. The cable is intended for datacenter environments where cost-effective, reliable high-speed interconnects are required for top-of-rack and server-to-switch cabling.

Advantages

The copper DAC design delivers native 25 Gbit/s performance with minimal signal conversion, resulting in lower latency and lower power draw than equivalent optical solutions. As a fixed, passive assembly it simplifies deployment and reduces ongoing maintenance needs. Its 5 m length is suited to rack-level and short inter-rack connections while offering reliable electrical characteristics for consistent throughput.

Suitable for

• Top-of-rack switch to server connections in datacenters
• Server-to-switch links within a single rack or adjacent racks
• High-performance computing clusters requiring short, low-latency links
• Network upgrades to 25GbE where cost and power efficiency are priorities

Key specifications

• Interface type: SFP28 male to SFP28 male
• Maximum data rate: 25 Gbit/s
• Cable type: Direct-attach copper (DAC)
• Length: 5 metres
• Typical use: short-reach, rack-level interconnects
• Latency: low, passive electrical connection
• Power consumption: lower than equivalent optical transceivers

How to use

Install the cable by inserting each SFP28 connector into the corresponding SFP28 port on your switch, server or NIC until the latch engages. Verify link status in the device management interface and ensure both endpoints are configured for 25GbE operation. For best results, route the cable to avoid sharp bends and maintain proper airflow within the rack. If the cable is passive, confirm that connected equipment supports passive DACs at the required data rate.

Usage recommendations

Use this 5 m SFP28 DAC for rack-level connections where short distance, low latency and reduced power usage are important. Avoid exposing the cable to excessive mechanical stress or electromagnetic interference. Verify compatibility with your network hardware vendor documentation before deployment.