Passive SFP28 Twinax DAC cable CBO 0.5 m for 25GbE connections

Passive SFP28 Twinax DAC cable CBO 0.5 m for 25GbE connections is a short-reach direct attach copper assembly designed for high-throughput links between devices with SFP28 ports. The 0.5 m cable provides a low-latency physical connection suitable for top-of-rack switches, servers and storage systems that support passive SFP28 DAC modules. The design eliminates the need for separate transceivers and fiber, offering a compact, single-cable solution for short-distance 25 Gigabit Ethernet links.

Advantages

This passive SFP28 twinax cable delivers reliable 25GbE connectivity with low electrical latency and stable signal integrity over short distances. It is cost-effective compared with active optics or transceiver-plus-fiber solutions and reduces power consumption because no active signal conversion is required at the cable ends. The integrated design simplifies rack cabling and minimizes space usage while maintaining protocol compatibility with standard SFP28 ports.

Suitable for

• Top-of-rack switch to server 25GbE connections
• High-density server and storage interconnects in data centers
• Short-reach links inside racks or between adjacent racks
• Low-latency applications such as virtualization and storage fabrics

Key specifications

• Connector type: SFP28 to SFP28 twinax
• Nominal data rate: 25 Gigabit Ethernet
• Cable length: 0.5 m of direct attach copper twinax
• Installation style: passive (no active electronics in cable)
• Typical use: short-reach, rack-level interconnects
• Compatibility: designed for equipment accepting SFP28 passive DAC modules

How to use

Install the passive SFP28 twinax DAC by inserting each SFP28 connector into the corresponding SFP28 port on your network devices until the latch engages. Verify secure mechanical seating and confirm link status via device LEDs or management interfaces. No additional configuration is required at the physical layer beyond standard port setup on the switch or server. For removal, depress the connector latch and withdraw the module carefully to avoid strain on the cable or ports.

Recommendations

Use this 0.5 m passive twinax cable for short, direct 25GbE links within racks or between immediately adjacent racks. Avoid tight bends and excessive pulling; maintain a bend radius consistent with manufacturer guidance. Confirm device compatibility with passive SFP28 DAC modules before deployment and monitor link performance after installation.