This third-party passive breakout DAC cable is compatible with NVIDIA/Mellanox MCP7H60-W01AR30 (often searched as MCP7H60-W01A): one 400G QSFP-DD switch port fans out to two 200G QSFP56 ports. The 1.5 m length keeps the thin, flexible 30 AWG wire of the 1 m version while adding the extra reach to span a shelf or a few rack units between the switch and the nodes.
Supports full 400Gbps (split to 2x200Gbps, 8x50G PAM4 lanes) with ultra-low latency and power. Backed by our lifetime warranty. New, with free standard shipping on all US orders.
Key Features
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Extra reach, still flexible: 1.5 m, 30 AWG — the longest 30 AWG length in the family, for when 1 m won't reach but you don't want the bulk of 26 AWG.
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Plug-and-Play: Hot-pluggable connectors with pre-programmed EEPROM for NVIDIA/Mellanox compatibility.
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Passive and cool: No optics to power, cool or fail.
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Lifetime Warranty backed by Resilient Tec.
Technical Specifications
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Data Rate: 400Gbps (400GbE, split to 2x200Gbps, 8x50Gbps PAM4)
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Connectors: 1x QSFP-DD to 2x QSFP56
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Lane Mapping: TX1-4 / RX1-4 to leg 1, TX5-8 / RX5-8 to leg 2 — each leg runs 200G CR4 (4 lanes)
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Length: 1.5 meters (4.9 ft)
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Cable Type: Passive Twinax Copper, 30 AWG
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Operating Temperature: 0°C to 70°C
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Standards Compliance: IEEE 802.3cd, SFF-8665, QSFP-DD/QSFP56 MSA, CMIS compliant
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Cross-reference: NVIDIA MCP7H60-W01AR30 (30 AWG, 1.5 m); family documented as MCP7H60-W0xxRyy. Also sold as the 1 m MCP7H60-W001, the 2 m MCP7H60-W002 and 3 m MCP7H60-W003.
Compatibility
- NVIDIA ConnectX-7 / ConnectX-6 adapters (200G ports)
- NVIDIA DGX Spark and other GB10 systems (ASUS Ascent GX10, Dell Pro Max GB10, HP ZGX Nano AI Station) — switch-side breakout, one port to two nodes
- MikroTik CRS804-4DDQ and CRS812-8DS-2DQ-2DDQ 400G QSFP-DD switches
- Other QSFP-DD/QSFP56 platforms
NVIDIA DGX Spark and GB10 Clustering
One 400G QSFP-DD switch port fans out into two 200G QSFP56 legs, and each leg feeds one Spark at a full, unsplit 200G. The Spark's QSFP112 cage accepts a QSFP56 plug.
Compatible with MikroTik CRS804-4DDQ and CRS812 QSFP56-DD ports (set speed=200G-baseCR4 on lanes 1 and 5). Four DGX Sparks = 2 cables.
Breakout belongs on the switch end only. NVIDIA does not enable or validate port splitting on the DGX Spark's ConnectX-7. Use this cable to fan a switch port out to two Sparks — never the other way round.
Not sure which length or how many? See the DGX Spark interconnect reference or send us your node count and switch model.
