HPE P65326-001 (MCP7Y40-N001) InfiniBand NDR200 OSFP to 4xQSFP112 Passive DAC Breakout Cable, 1m: This is a 1-meter passive copper hybrid breakout cable that splits a single 800Gb/s OSFP switch port into four individual 200Gb/s QSFP112 compute endpoints. It is an HPE-branded version of the NVIDIA Mellanox MCP7Y40-N001, with identical electrical specifications. This is a fixed-length integrated assembly. This unit is New.
Engineering Context
The P65326-001 is HPE's OEM-labeled equivalent of the NVIDIA MCP7Y40-N001 (reference P/N: 980-9I80B-00N001). At 1 meter, this is the shortest standard-length NDR200 breakout DAC, optimized for same-rack deployments. As a passive device, it consumes zero power and provides the lowest possible latency with complete EMI immunity via shielded twinaxial construction.
Deployment & Use Cases
Same-rack connectivity between NVIDIA Quantum-2 switches (OSFP) and ConnectX-7 adapters (QSFP112). Maximum port density configurations in HPC and AI clusters. Cost-efficient InfiniBand NDR deployments without active transceivers. HPE Cray EX supercomputing environments with tight rack spacing.
Technical Specifications
- OEM: HPE (Licensed from NVIDIA/Mellanox)
- HPE Part Number: P65326-001
- NVIDIA/Mellanox Equivalent: MCP7Y40-N001
- Switch Connector: 1x OSFP
- Adapter Connectors: 4x QSFP112
- Data Rate: 800Gb/s to 4x 200Gb/s NDR200 (8x 100G PAM4)
- Cable Type: Passive DAC (0W)
- Length: 1m
- Impedance: 100 Ohm differential
- Protocol: InfiniBand NDR
- Condition: New
Compatibility & Hard Constraints
Switch side: Compatible with NVIDIA Quantum-2 (MQM9700/MQM9790). Ports must be in "Split 4x200G" mode. Adapter side: Requires ConnectX-7 with QSFP112 ports and 100G PAM4 signaling. Not compatible with ConnectX-6 QSFP56 (50G PAM4). Not compatible with OSFP-based ConnectX-7 adapters. Not compatible with legacy QSFP28 ports. Fixed 1m length. Minimum bend radius 70mm.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS validates every NDR200 DAC fanout for signal integrity and connector condition before shipment. We provide expert consultation on HPE and NVIDIA InfiniBand architecture, global shipping, and comprehensive warranty.

