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

NVIDIA

NVIDIA MCX75310AAC-NEAT ConnectX-7 network card

SKU CH-XWP5-RDX8H MPN MCX75310AAC-NEAT

A PCIe 5.0 x16 adapter with a single OSFP port supporting InfiniBand NDR and 400 Gb/s Ethernet

  • SpeedInfiniBand (Default): NDR/NDR200/HDR/HDR100/EDR/FDR/SDR Ethe
  • InterfacePCI Express Gen 4.0/5.0: SERDES @ 16/32GT/s, x16 lanes (Gen
  • FeaturesPROTOCOL SUPPORT InfiniBand: IBTA v1.5: Auto-Negotiation: ND
  • DimensionsAdapter Card Size: PCIe Half Height, Half Length 2.71 in. x
  • DisclaimerREGULATORY Safety: CB / cTUVus / CE EMC: CE / FCC / VCCI / I

Part MCX75310AAC-NEAT

Data Rate NDR/400GbE

Network Interface OSFP / Single Port

  • PCIe 5.0 x16 interface enables 32 GT/s data throughput
  • Single OSFP port supports 400 Gb/s Ethernet and NDR InfiniBand
  • Half-height half-length form factor fits dense 2.71 in × 6.6 in slots
  • Multi-rate auto-negotiation covers 10 Gb/s to 400 Gb/s Ethernet speeds
  • IBTA 1.5 compliant with NDR, HDR, EDR and legacy InfiniBand rates

NVIDIA ConnectX-7 single-port OSFP adapter

The NVIDIA ConnectX-7 MCX75310AAC-NEAT is a half-height half-length PCIe network interface card built for high-performance computing clusters and enterprise data centres that require InfiniBand or Ethernet connectivity in a single OSFP port.

PCIe 5.0 x16 interface with 32 GT/s SERDES

The card connects through a PCI Express 5.0 x16 slot running at 32 GT/s per lane and remains compatible with PCIe 4.0 and 3.0 platforms, so the host bus width and generation decide whether the adapter can reach its rated throughput.

Half-height bracket fits dense servers.

The low-profile 2.71 by 6.6 inch form factor slides into 1U and blade chassis without clearance issues, but the single OSFP cage demands compatible transceivers or direct-attach cables and correct lane breakout configuration to avoid link negotiation failures.

Highlights

  • PCIe 5.0 x16 interface enables 32 GT/s data throughput
  • Single OSFP port supports 400 Gb/s Ethernet and NDR InfiniBand
  • Half-height half-length form factor fits dense 2.71 in × 6.6 in slots
  • Multi-rate auto-negotiation covers 10 Gb/s to 400 Gb/s Ethernet speeds
  • IBTA 1.5 compliant with NDR, HDR, EDR and legacy InfiniBand rates

Specifications

BrandNvidia
ModelConnectX-7
Part NumberMCX75310AAC-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
FeaturesPROTOCOL 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, 50GBASE-R2 , 40GBASE-CR4, 40GBASE-R2, 25GBASE-R, 10GB
DimensionsAdapter Card Size: PCIe Half Height, Half Length 2.71 in. x 6.6 in. (68.90mm x 167.65 mm)
DisclaimerREGULATORY
Safety: CB / cTUVus / CE
EMC: CE / FCC / VCCI / ICES / RCM / KC
RoHS: RoHS Compliant
Shipping weight0.23 kg
Package size178 × 152 × 25 mm

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Questions about this item

What does the 400 Gb/s Ethernet rating mean for actual throughput in a server?

The adapter supports Ethernet speeds up to 400 Gb/s using a single OSFP port, with auto-negotiation down to 1 Gb/s depending on the connected module and switch configuration.

What does the PCI Express 5.0 x16 interface cap at in practice?

The card uses a PCIe 5.0 x16 slot with SERDES at 32 GT/s per lane and is backward compatible with PCIe 4.0 and 3.0 slots.

What physical space is needed to install this half-height, half-length card?

The adapter measures 2.71 in by 6.6 in (68.90 mm by 167.65 mm) and fits a standard half-height, half-length PCIe slot.

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