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

The BlueOptics SFP28-DAC-3M-QL is a 3-meter direct attach copper (DAC) cable with SFP28 male connectors on both ends, engineered for short-range, high-speed 25 Gigabit Ethernet links. The cable provides a fixed, low-latency connection between SFP28 ports on switches, servers and storage units, and is intended for use in rack-to-rack and intra-rack topologies where reliable, cost-effective connectivity is required.

Advantages

The SFP28 DAC cable offers low power consumption and reduced latency compared with active optical solutions, while providing a stable physical connection for 25 Gbps links. Its 3 m length simplifies cabling in densely populated racks and the direct attach form factor removes the need for separate transceivers. Constructed for durability, the cable maintains consistent performance for short-distance interconnects and reduces equipment complexity in data center environments.

Suitable for

• Connecting SFP28 ports on network switches and routers
• Linking servers to top-of-rack switches
• Interconnecting storage arrays and SAN equipment
• Short-distance rack-to-rack or intra-rack connections up to 3 meters

Key specifications

• Cable type: Direct attach copper (DAC)
• Connector type: SFP28 male to SFP28 male
• Data rate: 25 Gbps per lane (SFP28 standard)
• Length: 3 meters
• Colour: Black
• Typical application: Short-range 25 Gigabit Ethernet links

How to use

Install the cable by inserting each SFP28 connector into the corresponding SFP28 port until the latch clicks into place. Ensure both network devices are powered down or that hot-swap port procedures are followed per equipment manufacturer guidance. Verify link status in device management interfaces and check that the negotiated link speed is 25 Gbps. For removal, release the connector latch and pull the connector straight out to avoid damaging the port.

Recommendations

Use this DAC cable for short, high-bandwidth interconnects within racks or between adjacent racks. Avoid excessive bending or compression near the connector ends and maintain an appropriate bend radius to preserve signal integrity. Confirm compatibility with your switch or server vendor’s supported cable lists when deploying in production environments.