BlueOptics QSFP Direct Attach Cable 1 m, 56G Infiniband FDR, 28AWG

BlueOptics QSFP Direct Attach Cable 1 m, 56G Infiniband FDR, 28AWG is a passive QSFP-to-QSFP copper assembly designed for short-reach, high-bandwidth interconnections in data centers and high-performance computing clusters. With a 1 meter length and 56G raw bandwidth per lane aggregate suitable for Infiniband FDR environments, this direct attach cable establishes an electrical connection between QSFP ports on switches, servers and storage arrays without requiring optical transceivers. The cable uses 28AWG copper conductors to support reliable signal integrity across top-of-rack links and node-to-node interconnects.

Advantages

The cable offers a cost-effective, low-power alternative to optical links by eliminating the need for separate transceivers while maintaining the bandwidth characteristics required for Infiniband FDR. Its 1 m length reduces latency and signal loss for short inter-rack or in-rack connections, and the 28AWG construction provides mechanical flexibility and predictable electrical performance. The direct attach format simplifies deployment and reduces component count in dense switch and server environments.

Suitable for

• Top-of-rack switch to server or storage connections in data centers
• High-performance computing cluster interconnects using Infiniband FDR
• Short-reach links inside server racks and appliance chassis
• Environments where low latency and reduced power consumption are required

Key specifications

• Connector type: QSFP to QSFP direct attach
• Length: 1 meter
• Bandwidth: 56G raw aggregate suitable for Infiniband FDR
• Conductor gauge: 28AWG copper
• Type: Passive direct attach cable (DAC)
• Typical application: Short-reach electrical interconnects in data centers and HPC

How to use

Insert each QSFP connector into the corresponding QSFP port on the devices to be linked, ensuring the latch engages securely. Verify that both endpoints support passive QSFP direct attach connections and are configured for the appropriate Infiniband FDR link speed. After connection, monitor link status on the devices and confirm stable negotiation of speed and lanes. For removal, disengage the latch and pull the connector straight out to avoid stressing the port.

Usage recommendations

Use this 1 m passive QSFP DAC for short, rack-level connections where optical transceivers are not required. Keep the cable bend radius gentle, avoid tight bends or kinks, and route the cable to prevent mechanical strain on the connectors. Verify compatibility with your switch or server vendor's supported direct attach cable list when precise interoperability guidance is needed.