InfiniBand/fibre optic cable BlueOptics AXLC763-10000S-BL 3 m QSFP Male/Male

The BlueOptics AXLC763-10000S-BL is a 3 m InfiniBand/fibre optic cable with QSFP male-to-male connectors designed for short-range, high-bandwidth links. This direct attach cable (DAC) implements a passive twinax copper construction compatible with 40GBase-CR4 and QSFP interfaces, providing a straightforward connection between rack-mounted switches, routers and storage systems that support QSFP passive DACs.

Advantages

This 3 m QSFP male/male cable offers low latency and low power consumption typical of passive DAC twinax designs. It conforms to MSA-compliant QSFP physical interfaces and is manufactured using quality components to ensure reliable signal integrity over short distances. The cable supports multiple protocols including Ethernet, FCoE, Fibre Channel and InfiniBand at up to 40 Gbit/s and is suitable for dense rack environments where cost-efficiency and long-term availability are important.

Suitable for

• Short-range interconnects between adjacent racks and within rack enclosures
• 40G QSFP links for switches, routers and storage arrays
• Data centre top-of-rack and aggregation layer connections
• High-bandwidth InfiniBand and Fibre Channel interconnects where passive DACs are supported

Key specifications

• Length: 3 metres
• Connector type: QSFP male to QSFP male
• Supported data rates: up to 40 Gbit/s
• Physical medium: passive twinax copper (DAC)
• Wire gauge: 30 AWG
• Compliance: MSA-compatible QSFP form factor

How to use

Before installation, verify that both devices explicitly support passive QSFP-to-QSFP DAC cables. Route the cable to avoid tight bends and mechanical stress; maintain the manufacturer’s minimum bend radius. Insert each QSFP connector into the corresponding port until it seats securely, and ensure the latching mechanism engages. After connection, check link status on both devices and confirm negotiated speed and protocol. For removal, release the latch and pull straight out to avoid damaging the connector.

Recommendations

Use this passive 3 m QSFP DAC for links inside racks or between adjacent racks where short-range, high-bandwidth 40G connections are required. Avoid using passive twinax cables for longer spans or in systems that require active cable electronics; consult device documentation to confirm passive DAC compatibility and port settings before deployment.