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NVIDIA ConnectX-7 half-height half-length card single OSFP port

NVIDIA

NVIDIA MCX75310AAS-NEAT ConnectX-7 NDR 400G InfiniBand network card PCIe 5.0 x16 OSFP single port

SKU CH-J8WA-T6EZ4 MPN MCX75310AAS-NEAT

Single-port OSFP adapter delivering 400 Gb/s InfiniBand NDR or Ethernet over PCIe 5.0 x16

  • SpeedInfiniBand (Default): NDR/NDR200/HDR/HDR100/EDR/FDR/SDR Ethe
  • InterfacePCI Express Gen 4.0/5.0: SERDES @ 16/32GT/s, x16 lanes (Gen
  • FeaturesCapabilities: Secure Boot Enabled, Crypto Disabled PROTOCOL

Part MCX75310AAS-NEAT

Data Rate 400GbE/NDR

Network Interface OSFP / Single Port

  • Single-port OSFP delivers 400 Gb/s InfiniBand NDR bandwidth
  • PCIe 5.0 x16 interface provides 32 GT/s SERDES throughput
  • Backward compatible with PCIe 3.0 and 4.0 slots
  • Supports InfiniBand speeds from SDR to NDR200 auto-negotiation
  • Half-height half-length form factor fits dense server chassis

NDR 400G InfiniBand Adapter

The NVIDIA ConnectX-7 MCX75310AAS-NEAT is a single-port network adapter built for high-performance computing clusters and enterprise data centres. It connects through a PCI Express 5.0 x16 slot and uses an OSFP optical interface to deliver 400 Gbit/s InfiniBand or 400 GbE throughput. The half-height, half-length bracket fits dense server chassis.

Capacity and headroom

The adapter defaults to InfiniBand NDR at 400 Gbit/s using four 100 Gbit/s lanes and also negotiates NDR200, HDR, EDR, FDR and SDR speeds. On the Ethernet side it steps down through 200, 100, 50, 40, 10 and 1 Gb/s. PCIe Gen 5.0 SERDES at 32 GT/s across 16 lanes provides the bus headroom; Gen 4.0 at 16 GT/s and Gen 3.0 remain compatible.

Build integration

A PCIe 5.0 x16 slot is required to reach the rated 400 Gbit/s line rate; the card will operate in Gen 4.0 or 3.0 slots at reduced bandwidth. The single OSFP cage accepts standard optical modules for fibre cabling. Secure Boot is enabled while cryptographic offload is disabled, so host CPU resources handle encryption workloads.

Highlights

  • Single-port OSFP delivers 400 Gb/s InfiniBand NDR bandwidth
  • PCIe 5.0 x16 interface provides 32 GT/s SERDES throughput
  • Backward compatible with PCIe 3.0 and 4.0 slots
  • Supports InfiniBand speeds from SDR to NDR200 auto-negotiation
  • Half-height half-length form factor fits dense server chassis

Specifications

BrandNVIDIA
Part NumberMCX75310AAS-NEAT
SpeedInfiniBand (Default): NDR/NDR200/HDR/HDR100/EDR/FDR/SDR
Ethernet: 400/200/100/50/40/10/1 Gb/s Ethernet
InterfacePCI Express Gen 4.0/5.0: SERDES @ 16/32GT/s, x16 lanes (Gen 3.0 compatible)
Networking Port: Single OSFP InfiniBand and Ethernet
FeaturesCapabilities: Secure Boot Enabled, Crypto Disabled
PROTOCOL SUPPORT
InfiniBand: IBTA v1.5
Auto-Negotiation: NDR (4 lanes x 100Gb/s per lane) port, NDR200 ( 2 lanes x 100Gb/s per lane ) port, HDR (50Gb/s per lane) port, HDR100 (2 lane x 50Gb/s per lane), EDR (25Gb/s per lane) port, FDR (14.0625Gb/s per lane), 1X/2X/4X SDR (2.5Gb/s per lane).
Ethernet Protocols supported by the electrical interface
400GAUI-4 C2M, 400GBASE-CR4 , 200GAUI-2 C2M, 200GAUI-4 C2M, 200GBASE-CR4, 100GAUI-2 C2M, 100GAUI-1 C2M, 100GBASE-CR4, 100GBASE-CR2, 100GBASE-CR1, 50GAUI-2 C2M, 50GAUI-1 C2M, 50GBASE-CR, 50GB
Shipping weight0.45 kg
Package size206 × 152 × 28 mm

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Questions about this item

Will this ConnectX-7 card run in my PCIe 4.0 x16 slot at full NDR 400Gb/s speed?

The adapter supports PCIe 5.0 x16 and 4.0 x16 SERDES at 16 or 32 GT/s; in a 4.0 slot it operates at Gen 4.0 rates while still delivering InfiniBand NDR 400Gb/s through the single OSFP port.

How can I verify the card is negotiating NDR 400Gb/s after installation?

Check the port auto-negotiation status — it should report NDR at four lanes of 100Gb/s per lane, matching the default InfiniBand speed listed for this MCX75310AAS-NEAT adapter.

Does the box include an OSFP transceiver or fibre cable for the 400G link?

The package contains the half-height half-length PCIe card with a single OSFP cage; transceivers and optical fibre cables for 400G InfiniBand or Ethernet must be purchased separately.

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