This third-party 400G QSFP-DD passive twinax DAC cable is fully compatible with NVIDIA/Mellanox MCP1660-W002E30, providing a reliable, low-cost alternative for ultra-short-reach connections in 400GbE Ethernet and InfiniBand NDR environments. Ideal for dense AI training clusters, HPC supercomputers, and hyperscale data centers.
Engineered to MSA standards, it delivers full 400Gbps bandwidth (8x50G PAM4 lanes) with minimal power draw and heat. Backed by our lifetime warranty and rigorous testing—save 70-90% vs. genuine OEM pricing without sacrificing performance or compatibility.
Key Features
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Massive Cost Savings: High-quality compatible alternative—perfect for budget-friendly AI infrastructure scaling.
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Plug-and-Play: Hot-pluggable QSFP-DD connectors with pre-programmed EEPROM for seamless NVIDIA/Mellanox compatibility.
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Ultra-Low Power & Latency: Passive design (<0.1W consumption) for efficient, high-density racks.
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Lifetime Warranty: Fully tested in production environments.
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Use Cases: Intra-rack GPU-to-GPU, switch-to-switch, or node interconnects in multi-node AI clusters and cloud fabrics.
Technical Specifications
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Data Rate: 400Gbps (400GbE / NDR InfiniBand, 8x50Gbps PAM4)
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Connectors: QSFP-DD to QSFP-DD
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Length: 2 meters (6.6 ft)
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Cable Type: Passive Twinax Copper (typically 30AWG)
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Power Consumption: <0.1W
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Operating Temperature: 0°C to 70°C
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Standards Compliance: IEEE 802.3ck, SFF-8665, QSFP-DD MSA, CMIS compliant
Compatibility
Programmed for full compatibility with NVIDIA/Mellanox ecosystems and MSA-compliant platforms, including:
- NVIDIA Quantum-2 QM9700/QM9790 switches
- NVIDIA ConnectX-7 / BlueField-3 adapters
- NVIDIA DGX H100/B200 systems
- Other QSFP-DD 400G ports (Arista 7800R, Broadcom-based, etc.)
Need shorter/longer lengths, breakout options, or volume discounts? Contact us—we're your source for compatible high-bandwidth interconnects.
📋 COMPATIBILITY DOCUMENTATION
Download report: MCP1660-W002E30_Compatibility_Report - 400G QSFP-DD specs, EEPROM protocols, 2M extended reach.
📋 View the full NVIDIA & Mellanox Interconnect Compatibility Guide for the complete tested model catalog.
