InfiniBand/fibre optic cable BlueOptics CAB-DAC30M-SFPP-DEC02-BL 3 m SFP+ Male/Male

The BlueOptics CAB-DAC30M-SFPP-DEC02-BL is a 3 m direct attach cable (DAC) with SFP+ male-to-male connectors designed for short-range high-speed links in racks and adjacent rack connections. As a passive 10GBase-CR twinax copper cable with 30 AWG wiring and SFP+ interfaces, it supports InfiniBand, Fibre Channel and 10 Gbps Ethernet-class protocols when the connected hardware platform supports passive DACs.

Advantages

This 3 m SFP+ male/male DAC offers a low-latency, low-power solution for direct device-to-device connections in data centres and high-performance computing environments. Manufactured to MSA-compliant specifications and assembled using established component vendors, it provides compatibility with major hardware platforms that accept SFP+ passive DACs. The passive design eliminates active transceiver circuitry, reducing power consumption and points of failure while keeping installation and maintenance requirements minimal.

Suitable for

• Short-range server-to-switch and switch-to-switch connections within racks
• High-performance computing clusters and InfiniBand interconnects
• Storage systems and Fibre Channel links supporting SFP+ passive DACs
• Environments where low latency and low power consumption are required

Key specifications

• Connector type: SFP+ male to SFP+ male
• Length: 3 metres
• Cable type: Passive twinax copper (DAC)
• Wire gauge: 30 AWG
• Supported data rates: up to 10 Gbps (per supported protocol and hardware)
• Applicable protocols: 10GBase-CR, Ethernet, Fibre Channel, FCoE, InfiniBand (when supported)
• Compliance: MSA-compliant assembly and mechanical interfaces

How to use

Install the cable by inserting each SFP+ connector into the SFP+ ports of the devices to be linked, ensuring the host hardware supports passive 10GBase-CR DACs and the chosen protocol. Use the cable for connections up to 3 m; verify link status and negotiated speed on both connected devices after seating the connectors. Because the cable is passive, no additional power or configuration on the cable itself is required—any necessary link settings are controlled by the connected equipment.

Recommendations

Use the BlueOptics 3 m SFP+ DAC for short, rack-level connections where low latency and low power draw are priorities. Confirm compatibility with your switch, router or storage vendor for passive DAC support and keep cable runs within the 3 m length to maintain signal integrity. Avoid sharp bends and mechanical strain on the cable and connectors to preserve expected lifetime and availability.