SFP28 DAC Cable BlueOptics SFP28-DAC-3M-MT 3m Male/Male

The BlueOptics SFP28-DAC-3M-MT is a 3-metre direct attach copper (DAC) cable with SFP28 male connectors at both ends, engineered for short-reach, high-speed 25GbE links. It provides a compact, low-latency physical connection between switches, servers and network interface cards in data centre and enterprise environments. The cable’s fixed-length design and integrated SFP28 connectors simplify installation and reduce the need for transceivers and additional patching hardware.

Advantages

This SFP28 DAC cable offers a reliable electrical connection with low signal loss and deterministic latency suitable for 25 Gigabit Ethernet. Its pre-terminated male-to-male SFP28 form factor makes it plug-and-play compatible with SFP28 ports, reducing installation time and potential configuration errors. The 3-metre length balances reach and rack-to-rack flexibility while keeping cabling neat. The cable’s construction is designed to provide consistent performance for short-reach interconnects and to minimize power consumption compared with active optical solutions.

Suitable for

• Rack-to-rack 25GbE connections in data centres
• Direct server-to-switch links in enterprise networks
• High-density switch fabric interconnects
• Test and lab environments requiring short, high-speed links

Key specifications

• Connector type: SFP28 male on both ends
• Length: 3 metres
• Supported data rate: 25 Gigabit Ethernet
• Cable type: Direct attach copper (passive DAC)
• Latency: low, suitable for short-reach high-speed links
• Compatibility: standard SFP28 ports (hot-pluggable)

How to use

Insert each SFP28 connector into the corresponding SFP28 port on your network devices until the latch engages. Ensure devices are powered and that port settings on switches or servers match the 25GbE link requirements. For best results, route the cable to avoid tight bends and mechanical stress on the connectors. The cable is intended for short-reach connections within racks or between neighboring racks; it does not replace long-reach fiber or active optical transceivers for extended distances.

Usage recommendations

Verify compatibility with your hardware vendor’s SFP28 port guidelines and check that firmware and network settings support 25GbE operation. Avoid sharp bends and excessive tension, and maintain a clean environment to prevent connector contamination. For longer distances or different link budgets, consider alternative fiber or active optical options.