DAC-kabel CBO JNP-SFP-25G-DAC-3M-BL 3 m SFP28 25 Gbit/s

Direct attach copper (DAC) cable CBO JNP-SFP-25G-DAC-3M-BL is a 3 m passive SFP28 twinax cable engineered for short-distance 25 Gbit/s links. The cable provides a reliable physical connection between devices equipped with SFP28 ports, offering low latency and low power consumption compared with active optical transceivers for comparable short-range topologies. It is intended for use in data center environments where compact, cost-effective high-speed connections are required.

Advantages

This SFP28 25 Gbit/s DAC cable delivers predictable performance for short-reach connections and eliminates the need for separate transceivers and fiber patch cords, simplifying installation and reducing component count. The passive twinax construction minimizes power draw and latency, while the fixed 3 m length supports common rack-to-rack and top-of-rack layouts. The cable’s SFP28 interfaces ensure compatibility with network switches, servers and NICs that support SFP28 copper direct attach connections.

Suitable for

• Top-of-rack switch to server connections in data centers
• Rack-to-rack high-speed interconnects within short distances
• Interfacing network interface cards (NICs) to SFP28 ports
• Environments prioritizing low latency and power efficiency

Key specifications

• Connector type: SFP28 (both ends)
• Data rate: 25 Gbit/s
• Length: 3 meters
• Cable type: Passive twinax copper
• Latency: low (passive copper direct attach)
• Power consumption: minimal compared with active modules
• Typical use range: short-reach data center links

How to use

Insert each SFP28 connector into the corresponding SFP28 port on your switch, server or NIC until the connector latches. Confirm link status through device LEDs or management interfaces and verify negotiated speed is 25 Gbit/s. Route the cable to avoid sharp bends and mechanical stress; maintain the 3 m separation between devices without tension. Removal is done by releasing the connector latch and straightly withdrawing the plug from the port.

Recommendations

Use this passive 3 m DAC cable for short-distance, high-bandwidth links inside racks or between adjacent racks. Ensure connected devices support SFP28 copper direct attach compatibility. Avoid exposing the cable to excessive heat or physical strain, and keep connectors free of contaminants to maintain signal integrity.