InfiniBand/fibre optic cable BlueOptics MCP7H60-W002R26-BL 2 m QSFP-DD 2xQSFP56

The BlueOptics MCP7H60-W002R26-BL is a 2 m InfiniBand/fibre optic direct attach cable with a QSFP-DD plug on one end and two QSFP56 plugs on the other. Designed for short-reach, high-bandwidth connections in racks and between adjacent racks, this cable supports up to 400 Gbit/s aggregate throughput (as 400GBase-CR8 or 2x200GBase-CR4) and is intended for use in data center switches, routers and storage systems that accept QSFP-DD / QSFP56 physical interfaces. The passive twinax copper construction (26 AWG) and MSA-compliant design provide predictable electrical performance and low signal loss on 2 m runs.

Advantages

This cable offers multi-protocol support including Ethernet, FCoE and InfiniBand on short distances while keeping power consumption and latency low. The passive 2 m direct-attach twinax design reduces component complexity and failure points compared with active optical solutions. Manufactured to MSA guidelines with high-quality subcomponents, it delivers consistent interoperability with major hardware platforms that support QSFP-DD to 2xQSFP56 configurations.

Suitable for

• Short-reach high-bandwidth links inside and between adjacent server racks
• Interconnects between QSFP-DD ports and dual QSFP56 ports on switches and routers
• High-performance computing and InfiniBand fabric connections
• Storage area network (Fibre Channel over Ethernet) uplinks and interlinks

Key specifications

• Length: 2 m
• Connector type: QSFP-DD to 2×QSFP56
• Data rate: up to 400 Gbit/s aggregate (400GBase-CR8 or 2×200GBase-CR4)
• Cable type: passive twinax copper
• Wire gauge: 26 AWG
• Compliance: MSA-compliant mechanical and electrical interfaces
• Typical use: short-distance rack and adjacent-rack interconnects

How to use

Install the cable by inserting the QSFP-DD connector into the host port and the two QSFP56 connectors into the corresponding target ports, ensuring alignment and a secure latch on each plug. Verify that connected devices support passive DACs and the intended 400G/200G modes in firmware and port configuration. No external power is required for the cable itself; link training and speed negotiation are handled by the connected devices. For reliable operation, route the cable without sharp bends and avoid excessive mechanical strain on the connectors.

Recommendations

Use this 2 m passive cable for short interconnects where low latency and low power consumption are priorities. Confirm compatibility with your switch/router vendor and platform firmware before deployment, and follow standard data center cabling practices: maintain bend radius, secure cables with appropriate ties, and avoid running parallel to high-voltage power lines to minimize interference.