Passive SFP28 DAC copper cable CBO JNP-25G-DAC-2M 25Gbps, 2 m

Passive SFP28 DAC copper cable CBO JNP-25G-DAC-2M 25Gbps, 2 m is a factory-terminated direct-attach cable designed for short-reach 25Gbps SFP28 interconnects. The 2-meter copper assembly provides a low-latency, low-power connection between compatible SFP28 ports on switches, routers, network interface cards and storage controllers. It is intended for use in data center topologies where a pre-terminated, compact cable simplifies cabling between rack-mounted devices and reduces the need for separate transceivers.

Advantages

This passive DAC cable offers straightforward plug-and-play installation with no external power or configuration required. Its direct-attach copper construction delivers deterministic latency and stable signal integrity over short distances while consuming less power than optical solutions. The 2 m length balances flexibility and organized cable routing inside racks and cabinets, and the SFP28 form factor ensures compatibility with standard 25Gbps SFP28 ports on supported equipment.

Suitable for

• Server-to-switch connections inside the same rack or adjacent racks
• Switch-to-switch uplinks in data center aggregation and access layers
• Top-of-rack (ToR) deployments and cabinet cross-connects
• High-density networking environments requiring low-latency short-reach links

Key specifications

• Data rate: 25 Gbps
• Length: 2 meters
• Connector type: SFP28 direct-attach copper
• Cable type: Passive twinax copper assembly
• Typical use: Short-range, rack-level interconnect

How to use

Install by inserting each SFP28 connector into the corresponding SFP28 port on the two devices until the latch engages. Ensure devices are powered and interfaces are enabled according to the equipment vendor’s interface configuration procedures. No external optics, power adapters or additional transceivers are required; the cable functions as a ready-made link. Verify link status and speed on both devices after insertion and monitor for any vendor-specific compatibility settings if link negotiation does not complete automatically.

Recommendations

Use the cable for short, fixed interconnects inside racks or between adjacent racks. Avoid tight bends near the connector, maintain proper cable strain relief, and follow equipment vendor compatibility lists to confirm supported SFP28 passive DACs.