InfiniBand/fibre optic cable BlueOptics SFP-50G-CU2M-BL 2m SFP56 Male/Male

The BlueOptics SFP-50G-CU2M-BL is a 2 m InfiniBand / fibre optic style Direct Attach Cable (DAC) with SFP56 male connectors on both ends. Designed for short-range, high-speed links in racks and between adjacent racks, this 50GBase-CR compatible passive twinax copper cable supports data rates up to 50 Gbit/s and is intended for integration with hardware platforms that support SFP56 direct attach modules. The cable is black, weighs approximately 0.08 kg and uses a 30 AWG twinax conductor construction compliant with common MSA guidelines.

Advantages

This 2 m DAC provides low-latency, low-power point-to-point connectivity suitable for dense server and switch environments. As a passive SFP56-to-SFP56 cable it eliminates the need for additional transceivers, reducing power consumption and simplifying deployment. The construction follows industry MSA standards and uses high-quality components to provide consistent signal integrity and long operational lifetime for short-distance 50G links.

Suitable for

• Short-range 50G connections between switches and servers in data center racks
• Top-of-rack to adjacent-rack interconnects
• Storage area network links using Ethernet, FCoE or InfiniBand at short distances
• Environments requiring low-latency, low-power direct attach solutions

Key specifications

• Connector type: SFP56 male to SFP56 male
• Data rate: up to 50 Gbit/s
• Length: 2 meters
• Cable type: passive twinax copper (30 AWG)
• Power consumption: passive, near 0.1 W typical system-level benefit compared with active modules
• Colour: black
• Compliance: MSA-compatible SFP56 direct attach form factor

How to use

Insert each SFP56 connector into the corresponding SFP56 port on the networking devices until the latch clicks. Ensure both endpoints officially support passive 50GBase-CR direct attach cables and check the device documentation for any required configuration or firmware compatibility. After physical installation, verify link status and speed on both devices and monitor for expected 50G operation. For best results, route the cable to avoid sharp bends and mechanical stress.

Recommendations

Use this 2 m passive DAC for short, rack-scale connections where low latency and low power are priorities. Confirm vendor compatibility with SFP56 passive direct attach cables before deployment and keep firmware up to date for optimal interoperability.