What is the difference between this cable and a standard breakout cable?

Most standard NDR200 breakout cables split from OSFP to QSFP112. This specific cable (P55157-001) splits from OSFP to 4x OSFP. It is only required if your servers/NICs use OSFP ports instead of the more common QSFP112 ports.

Can I plug the breakout ends into a QSFP112 port?

No. The breakout ends are OSFP form factor, which is physically larger than QSFP112. It will not fit into a QSFP port. You must verify your network card's connector type before ordering.

Is this cable active or passive?

This is a Passive Direct Attach Copper (DAC) cable. It uses no power and has no active electronics, relying on the host device's SerDes for signal driving.

HPE Mellanox® P55157-001 InfiniBand NDR200 OSFP to 4x OSFP DAC: This is a specialized high-performance passive copper breakout cable assembly designed for NDR InfiniBand fabrics using the OSFP form factor on both the switch and adapter ends. It splits a single "Twin Port" 800Gb/s OSFP switch port into four individual 200Gb/s OSFP compute endpoints. This is a fixed-length integrated cable assembly, not a transceiver with a detachable patch cord, ensuring minimized insertion loss for specialized AI/HPC nodes utilizing OSFP-based network adapters.

🔧 Technical Specifications

OEM: HPE / Mellanox (NVIDIA)
P/N: P55157-001 (Equivalent to NVIDIA MCP7Y50-N003 / 980-9I46T-00N003)
Data Rate: NDR200 (800Gb/s Split to 4x 200Gb/s)
Connector A: 1x OSFP (Finned Top - Switch Side)
Connector B: 4x OSFP (Flat Top - Adapter Side)
Power Consumption: 0W (Passive Device)

🌐 Engineering Context: Unlike standard splitters that breakout to QSFP112, this cable is engineered for "OSFP-native" architectures where the server Network Interface Cards (NICs) also utilize the OSFP form factor for superior thermal handling. By maintaining the OSFP shielded shell on the breakout legs, this solution offers enhanced "EMI Immunity" and robust latching mechanisms compared to smaller form factors. It provides "Deterministic Latency" ideal for tightly coupled AI training clusters.

🧠 Typical Use Cases

Connecting NVIDIA Quantum-2 Switches to OSFP-based ConnectX-7 Adapters.
High-density AI training rigs where OSFP thermal capacity is required at the NIC level.
Short-reach (3m) intra-rack connectivity for liquid-cooled or air-cooled HPC nodes.
Environments standardization on a single connector type (OSFP) for simplified inventory.

✅ Compatible With: NVIDIA Quantum-2 Series InfiniBand Switches (OSFP ports) and NVIDIA ConnectX-7 Adapter Cards specifically configured with OSFP cages. (Requires ports configured for native InfiniBand NDR operation). Note: The breakout legs are OSFP, not QSFP112.

❌ NOT Compatible With: Standard ConnectX-7 cards with QSFP112 ports, Legacy QSFP28/QSFP56 ports, or Ethernet switches not supporting 100G PAM4 lane splitting. This cable cannot be physically inserted into QSFP cages.

⚠️ Mechanical Distinction: This assembly features a "Finned Top" OSFP connector on the switch end (Head) for heat exchange with the switch chassis, and "Flat Top" OSFP connectors on the four breakout ends (Legs) to fit under the riding heatsinks of standard OSFP adapters. Do not force the Finned connector into an adapter port.

⚠️ Bend Radius: At 3 meters using 26AWG copper, the cable is rigid. Maintain a minimum bend radius of 35mm. Ensure the heavy breakout legs are properly supported to avoid stress on the server's PCIe card connectors.

🤝 Why Choose T.E.S IT-SOLUTIONS? We specialize in enterprise-grade HPE and NVIDIA networking solutions. Every unit is strictly validated for InfiniBand NDR200 performance in our lab. We offer expert consultation, fast worldwide shipping, and a comprehensive warranty to ensure your data center infrastructure runs without compromise.

HPE Mellanox® P55157-001 OSFP→4x200G OSFP NDR200 Fanout DAC 3m

Name: HPE Mellanox® P55157-001 OSFP→4x200G OSFP NDR200 Fanout DAC 3m
SKU: P55157-001_NEW

SKU: P55157-001_NEW

€1,400.00

Quantity