SFP28 DAC kábel BlueOptics SFP28-DAC-2M-GM 2m konektor samec/konektor samec

The BlueOptics SFP28-DAC-2M-GM is a 2‑metre SFP28 Direct Attach Copper (DAC) cable with male SFP28 connectors on both ends, designed for short‑reach, high‑speed data links. Intended for use in data centres and network racks, this DAC cable provides a fixed, low‑latency copper connection between SFP28 ports on switches, routers, and servers. Its compact, low‑profile design supports straightforward installation in dense networking environments where fibre is unnecessary or cost‑prohibitive.

Advantages

This SFP28 DAC cable delivers reliable 25GbE class connectivity with minimal power consumption and low latency compared with active optical solutions. The fixed copper assembly eliminates the need for separate transceivers and optical modules, reducing both component count and overall link cost. The 2‑metre length is suitable for rack‑to‑rack or within‑rack connections, and the male/male SFP28 terminations ensure direct compatibility with standard SFP28 ports. The cable’s slim profile and predictable electrical behaviour make it a practical choice for dense server and switch deployments.

Suitable for

• Short‑distance connections between switches in the same rack or adjacent racks
• Direct links from servers to top‑of‑rack switches supporting SFP28 ports
• High‑performance computing clusters requiring low‑latency interconnects
• Environments where cost‑efficient 25GbE copper links are preferred over optical cabling

Key specifications

• Connector type: SFP28 male to SFP28 male
• Cable type: Direct Attach Copper (DAC)
• Length: 2 metres
• Data rate: compatible with 25 Gigabit Ethernet (SFP28)
• Colour: Black outer sheath
• Weight: approximately 0.08 kg

How to use

Install the DAC cable by inserting each SFP28 connector into the corresponding SFP28 port on network devices until the latch engages. Ensure both endpoints support SFP28 direct attach copper modules and are powered down or follow hot‑swap procedures recommended by the device manufacturer when connecting live equipment. After physical installation, verify link status and speed via the switch or server management interface and confirm that the interface negotiates at the required 25GbE rate.

Recommendations

Use this 2m DAC cable for intra‑rack and short inter‑rack connections where a stable, low‑latency 25GbE link is required. Avoid sharp bends and excessive cable strain, maintain recommended bend radius, and route the cable to prevent mechanical stress. Check device compatibility lists for SFP28 DAC assemblies if vendor compatibility is a concern.