HPE InfiniBand NDR/Ethernet 400Gb 1-Port OSFP PCIe5 x16 MCX75310AAS-NEAT Adapter

Engineered for the most demanding data centers, the HPE InfiniBand NDR/Ethernet 400Gb 1-Port OSFP PCIe5 x16 MCX75310AAS-NEAT Adapter is a high-performance PCI Express 5.0 hardware solution designed to deliver ultra-high bandwidth, ultra-low latency, and versatile networking capabilities. This single-slot, OSFP-form factor network adapter unifies InfiniBand NDR and Ethernet 400G connectivity in a compact PCIe 5.0 x16 card, empowering HPC clusters, AI training environments, and scale-out infrastructure with a robust, future-ready interconnect backbone. Built to integrate with HPE servers and industry-standard software stacks, it supports cutting-edge data center fabrics while simplifying deployment, management, and upgrade cycles.

• Unmatched bandwidth and low latency: 400 Gbit/s of port bandwidth enables rapid data movement between compute nodes, storage arrays, and accelerators, delivering the performance needed for large-scale simulations, AI workloads, and data analytics.
• PCIe 5.0 x16 interface: Leveraging the latest PCIe standard, this adapter provides ample headroom for peak throughput, reduces host CPU overhead, and ensures smooth data paths between the processor, memory, and network fabric.
• OSFP 400Gb/s optics-ready design: The OSFP form factor supports high-density, scalable optics for flexible deployment in modern data centers, including switches and leaf-spine fabrics. The card is compatible with a range of 400G OSFP transceivers and cables to suit your topology.
• InfiniBand NDR and Ethernet 400G support: A dual-mode networking solution, enabling InfiniBand NDR workloads for ultra-low latency interconnects and Ethernet 400G connectivity for RoCE-based data center operations, storage networks, and high-bandwidth file transfers.
• Enterprise-grade software ecosystem: Includes matured driver support, robust management utilities, and seamless integration with MLNX OFED, HPE software stacks, and compatible Linux/Windows environments, ensuring dependable operation in production environments.

Technical Details of HPE InfiniBand NDR/Ethernet 400Gb 1-Port OSFP PCIe5 x16 MCX75310AAS-NEAT Adapter

• Product type: PCIe expansion card (1-port network adapter)
• Host interface: PCI Express 5.0 x16
• Port configuration: 1 x OSFP port capable of 400 Gb/s
• Networking modes: InfiniBand NDR and Ethernet 400G (dual-mode capable)
• Form factor: PCIe plug-in card for standard server chassis
• Transceiver/optics: OSFP-compatible interface; transceiver module required per link (sold separately)
• Performance: Up to 400 Gbit/s aggregate bandwidth per port with ultra-low latency interconnect
• Supported software stack: MLNX OFED-compatible drivers; HPE networking software; Linux and Windows driver support
• Supported platforms: Compatible with HPE servers and other PCIe 5.0 x16 capable systems; broad ecosystem support for data center fabrics
• Power and cooling: Standard PCIe card power delivery; system cooling required per chassis specifications

How to install HPE InfiniBand NDR/Ethernet 400Gb 1-Port OSFP PCIe5 x16 MCX75310AAS-NEAT Adapter

• Power down the server and unplug it from all power sources to ensure safe installation.
• Open the chassis and locate an available PCIe 5.0 x16 slot on the motherboard. Remove the slot cover if required.
• Insert the MCX75310AAS-NEAT adapter firmly into the PCIe x16 slot until seated, then secure the bracket with a screw to the chassis.
• Install an OSFP 400G transceiver module into the OSFP port on the card (and connect the corresponding OSFP optical/copper links to your fabric as needed).
• Power on the server and install the latest HPE/Mellanox MLNX OFED drivers and any relevant firmware updates for the PCIe 5.0 capable adapter. Follow the driver installation prompts to completion.
• Configure networking in your operating system or fabric management tool: enable the InfiniBand NDR or Ethernet 400G mode as appropriate, assign network interfaces, and verify link status with ibstat, ibdev2netdev, or equivalent utilities.
• Perform a basic connectivity test across the fabric, checking latency, bandwidth, and error counters. Monitor the system for thermal and stability indicators during initial workloads, and adjust cooling or QoS settings if needed.

Frequently asked questions

• Q: What makes the HPE InfiniBand NDR/Ethernet 400Gb 1-Port OSFP PCIe5 x16 MCX75310AAS-NEAT Adapter different?
  A: It combines InfiniBand NDR and Ethernet 400G capabilities in a single PCIe 5.0 x16 card, delivering ultra-high bandwidth with low latency ideal for HPC, AI, and data center interconnects, while offering a flexible OSFP form factor for scalable optics.
• Q: What kind of transceivers do I need for OSFP on this card?
  A: You will need OSFP 400G transceivers and appropriate optical or DAC/optical cables compatible with your network fabric. The card provides the electrical interface, while the transceiver handles the optical/electrical conversion for the 400G link.
• Q: Which operating systems and software stacks are supported?
  A: The adapter supports common server operating systems with vendor-provided drivers, including Linux distributions and Windows, via MLNX OFED and HPE networking software. Ensure you install the latest drivers and firmware for best performance and stability.
• Q: Can this card be used in existing InfiniBand or Ethernet fabrics?
  A: Yes. It is designed for dual-mode operation, allowing integration into InfiniBand NDR fabrics as well as Ethernet 400G networks, enabling RoCE-based acceleration and flexible data center topologies.
• Q: Do I need a special power supply or cooling for this adapter?
  A: The card adheres to standard PCIe power delivery guidelines. Ensure your server enclosure provides adequate power and cooling for PCIe devices, particularly in dense, high-performance configurations.
• Q: Where can I obtain drivers and firmware updates?
  A: Download the latest MLNX OFED drivers and HPE networking software from the official vendor portals associated with HPE/NVIDIA Networking products. Regular updates help maximize performance, security, and compatibility.