Network Cable BlueOptics FN-CABLE-SFP56-DAC-L50CM SFP56 DAC 0.5m Blue

The BlueOptics FN-CABLE-SFP56-DAC-L50CM SFP56 DAC 0.5m Blue is a short-length direct-attach copper (DAC) cable designed for 50 Gbps class (SFP56) links. At 0.5 metres it provides a low-latency, low-power, and cost-effective physical connection for switch-to-switch, switch-to-server or server-to-server interconnects in racks and top-of-rack deployments. The cable uses a fixed, factory-terminated SFP56 twinax design that eliminates the need for separate transceivers and simplifies cable management in dense networking environments.

Advantages

This SFP56 DAC cable delivers predictable electrical performance with minimal signal loss over short distances and reduced power consumption compared with optical transceivers. Its compact, factory-terminated connectors offer straightforward plug-and-play installation and reliable mating with SFP56 ports. The blue jacket provides visual identification in cabling bundles and the robust construction supports repeated insertion cycles and rack-side handling without compromising contact integrity.

Suitable for

• 50 Gbps server-to-switch and switch-to-switch connections within the same rack or adjacent racks
• High-density data centre top-of-rack uplinks and short-reach interconnects
• Performance-sensitive applications requiring low latency and reduced power consumption

Key specifications

• Interface type: SFP56 (direct-attach copper, twinax)
• Rated data rate: up to 50 Gbps
• Length: 0.5 metres
• Cable jacket color: blue
• Connector: factory-terminated SFP56 modules on both ends
• Designed for short-reach, rack-level interconnects with low latency

How to use

Insert each SFP56 connector into the corresponding SFP56 port on your networking devices until the retainer engages. Ensure devices are powered down or support hot-plugging per vendor guidance. Verify link status in device management software or LEDs and confirm negotiated link speed is 50 Gbps where supported. Route the cable to avoid excessive bending; follow rack airflow and cable management practices to maintain signal integrity and accessibility.

Usage recommendations

Use this 0.5 m SFP56 DAC for short-distance connections within the same rack or adjacent racks. Avoid kinking the twinax cable and maintain the minimum bend radius specified by your equipment vendor. For longer runs or environments requiring optical isolation or extended reach, consider optical transceivers with fiber cabling instead.