SFP28 DAC kábel BlueOptics SFP28-DAC-2M-PS 2m konektor samec

The BlueOptics SFP28-DAC-2M-PS 2m Male Connector is a 2-metre SFP28 Direct Attach Copper (DAC) cable engineered for short-distance, high-speed connectivity between networking devices. It provides a fixed copper link with male SFP28 connectors on both ends, compatible with SFP28 ports on switches, routers and servers. The cable is designed to deliver reliable 25Gbps-class connections in rack-to-rack and chassis interconnect scenarios while minimizing power consumption and latency compared with active optical solutions.

Advantages

This SFP28 DAC cable offers low latency and stable signal quality for short-reach 25GbE links. Its fixed-length copper assembly reduces the need for separate transceivers, lowering overall hardware and operational costs. The passive design avoids additional power draw and heat generation associated with active modules, while the 2-metre length provides flexibility for connections inside racks and between adjacent units. The Black product colour and compact form factor facilitate neat cabling and straightforward installation in dense data centre environments.

Suitable for

• Short-distance connections between switches and servers within a rack
• Interconnects between adjacent network racks or chassis
• High-density top-of-rack (ToR) deployments requiring 25GbE links
• Cost-sensitive installations where passive copper links are preferred

Key specifications

• Cable type: SFP28 Direct Attach Copper (DAC)
• Connector: Male SFP28 on both ends
• Length: 2 metres
• Data rate: Designed for 25GbE-class connectivity
• Weight: 0.08 kg
• Colour: Black
• Design: Passive copper assembly optimized for low latency and low power

How to use

Insert each male SFP28 connector into compatible SFP28 ports on networking equipment until the latch engages. Ensure both devices support passive SFP28 DAC cables and are powered off or follow hot-plugging guidelines from the equipment manufacturer when connecting live. Route the 2-metre cable to avoid sharp bends and excessive strain; maintain recommended bend radius and secure the cable to prevent accidental disconnection. After installation, verify link status on both devices and confirm negotiated speed and link integrity through management interfaces.

Recommendations

Use this 2 m passive SFP28 DAC cable for short-reach 25GbE links inside racks or between adjacent racks. Avoid using in environments requiring extended reach, harsh mechanical stress, or where fiber-based optics are specified. Check switch and server vendor compatibility lists for passive DAC support to ensure full functionality and link stability.