DAC cable CBO BlueOptics JNP-25G-DAC-5M 5 m SFP28 direct-attach copper

Direct-attach copper (DAC) cable CBO BlueOptics JNP-25G-DAC-5M is a 5 metre passive SFP28 cable engineered for short-range 25G interconnects. The cable provides a fixed electrical connection between SFP28 ports on switches, servers or network interface cards (NICs) without the need for separate transceivers. Its form factor and length make it suitable for rack-to-rack and intra-rack links in data centres and server rooms where a low-latency, low-power 25G link is required.

Advantages

This DAC cable delivers consistent 25G signal performance with minimal latency and lower power consumption compared with optical transceivers plus fiber. The passive design reduces component count and simplifies deployment while offering reliable electrical connectivity for short distances. The standardized SFP28 connectors ensure compatibility with equipment that supports SFP28 direct-attach copper connections, and the fixed 5 m length is convenient for common rack layouts.

Suitable for

Key specifications

How to use

Install the DAC cable by inserting each SFP28 connector into the corresponding SFP28 port on the network devices until the latch engages. Ensure devices are powered down or follow hot-plug guidelines from your equipment vendor if supported. After connection, verify link status and speed in the device management interface and confirm the link negotiates at 25G. Cable routing should avoid sharp bends and excessive tension; maintain the specified minimum bend radius to preserve signal integrity.

Recommendations

Use this passive SFP28 DAC cable for short-distance, high-throughput links where cost, power and latency are priorities. Confirm compatibility with your switch or server vendor for passive DAC support and keep cable length within 5 m for reliable 25G performance.