SFP28 DAC Cable BlueOptics SFP28-DAC-2M-QL 2m Male/Male

The BlueOptics SFP28-DAC-2M-QL is a 2-meter SFP28 Direct Attach Copper (DAC) cable with male-to-male connectors designed for short-reach, high-speed 25 Gbps connections. Built for use in data centers and server rooms, this cable provides a low-latency physical link between SFP28 ports on switches, network interface cards and storage devices. Its compact copper construction eliminates the need for separate transceivers while offering consistent electrical performance across the 2 m link.

Advantages

The cable delivers reliable 25 Gbps throughput with minimal latency and low power consumption compared with optical transceiver solutions. Its direct-attach design simplifies deployment by combining cable and connector into a single assembly, reducing component count and installation time. The robust male SFP28 connectors ensure secure mating with standard SFP28 ports and maintain signal integrity over the 2 m distance. The constructed cable meets common data-center requirements for short-range copper interconnects.

Suitable for

• Connecting SFP28 ports between switches
• Linking servers to top-of-rack or spine switches
• Short-reach storage area network (SAN) interconnects
• High-density rack environments where compact cabling is required

Key specifications

• Connector type: SFP28 male to SFP28 male
• Cable length: 2 meters
• Maximum data rate: 25 Gbps (per link)
• Cable medium: Direct attach copper (DAC)
• Typical use: Short-reach, intra-rack and top-of-rack connections
• Latency: Low, electrical connection without transceivers

How to use

Power down devices or follow hot-plugging procedures recommended by your hardware vendor before inserting the SFP28 connectors. Align the male SFP28 module with the port and push gently until the latch engages. Verify link status through switch or server management interfaces and monitor for proper negotiation at 25 Gbps. To remove, depress the connector latch and pull straight out to avoid damaging the port. Follow equipment manufacturer guidelines for hot-swap if you need to insert or remove the cable while systems are powered.

Recommendations

Use this DAC cable for short-distance connections within the same rack or adjacent racks. Avoid sharp bends and excessive tension on the cable; maintain manufacturer-recommended bend radius and routing practices to preserve signal integrity. For distances beyond 2 m or for longer reach and fiber runs, consider optical transceivers and fiber cabling.