InfiniBand/fibre optic cable BlueOptics MCP1700-B003E-BL 3 m QSFP

The BlueOptics MCP1700-B003E-BL 3 m QSFP cable is a high-speed InfiniBand/fibre optic solution with QSFP connectors on both ends. Designed for short-reach interconnects in racks and between adjacent racks, the cable supports 40G data rates and is compatible with systems that accept QSFP direct attach connections. The male QSFP connectors provide a secure physical connection for linking switches, routers and servers where low latency and reliable 40G throughput are required.

Advantages

This QSFP 3 m cable is MSA-compliant and constructed to support passive direct-attach operation for short-distance, high-bandwidth links. Its 30 AWG twinax construction and QSFP-to-QSFP interface enable stable 40GBase-CR4 transmissions while maintaining low power consumption and low latency. The cable is tested for interoperability with major hardware platforms and built from components that meet standard industrial quality and compliance requirements.

Suitable for

• Short-reach interconnects inside server racks and between adjacent racks
• Connecting switches and routers that support QSFP 40G direct attach
• Aggregating server ports to top-of-rack and leaf switches
• High-speed InfiniBand, Ethernet and Fibre Channel links up to 40 Gbit/s

Key specifications

• Connector type: QSFP to QSFP, male connectors on both ends
• Length: 3 meters
• Transmission: passive direct attach twinax copper for 40GBase-CR4 operation
• Cable gauge: 30 AWG twinax
• Supported data rates: up to 40 Gbit/s over 3 m
• Compliance: MSA-compatible design and manufactured to industry standards (CE, RoHS, FCC where applicable)

How to use

Install the cable by inserting each QSFP connector into the corresponding QSFP port on the network devices until the latch engages. Ensure both connected devices support passive 40G direct-attach twinax links and that firmware or device settings allow passive DAC operation. Avoid bending the cable sharply near the connectors and route it to minimize mechanical strain. For hot-pluggable environments, connect or disconnect with the devices powered on only if the device manufacturer explicitly supports hot-swap of passive QSFP DACs.

Recommendations

Use this 3 m QSFP direct attach cable for short, high-bandwidth links where active transceivers are unnecessary. Verify device compatibility with QSFP passive DACs and keep the cable within recommended bend radius. For longer distances or optical requirements, choose appropriate active optical cables or transceiver-based fiber solutions.