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NVIDIA 900-9X81E-00EX-ST0 ConnectX-8 C8180 800Gb/s XDR InfiniBand / 2x400GbE VPI OSFP SuperNIC
NVIDIA Networking

NVIDIA 900-9X81E-00EX-ST0 ConnectX-8 C8180 800Gb/s XDR InfiniBand / 2x400GbE VPI OSFP SuperNIC

  • Form Factor: PCIe 6.0 x16 Network Adapter
  • Brand & Model: NVIDIA ConnectX-8 800GbE Single-Port VPI OSFP NIC
  • MPN: 900-9X81E-00EX-ST0
  • Ports and Speed:
  • Default configuration: 1x 800Gb/s XDR InfiniBand (not Ethernet/GbE)
    Alternate configuration: 2x 400GbE Ethernet ports (not 1x 800GbE)
  • Interface: Single OSFP
  • Features: Secure Boot Enabled, Crypto Enabled
  • Condition: New
SKU ConnectX-8-single-port-OSFP-PCIe 6-900-9X81E-00EX-ST0
Manufacturer NVIDIA/Mellanox

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NVIDIA 900-9X81E-00EX-ST0 ConnectX-8 C8180 800Gb/s XDR InfiniBand / 2x400GbE VPI OSFP SuperNIC Overview

  • Form Factor: PCIe 6.0 x16 Network Adapter
  • Brand & Model: NVIDIA ConnectX-8 800GbE Single-Port VPI OSFP NIC
  • MPN: 900-9X81E-00EX-ST0
  • Ports and Speed:
  • Default configuration: 1x 800Gb/s XDR InfiniBand (not Ethernet/GbE)
    Alternate configuration: 2x 400GbE Ethernet ports (not 1x 800GbE)
  • Interface: Single OSFP
  • Features: Secure Boot Enabled, Crypto Enabled
  • Condition: New

NVIDIA 900-9X81E-00EX-ST0 ConnectX-8 C8180 800Gb/s XDR InfiniBand / 2x400GbE VPI OSFP SuperNIC Specifications

CONNECTOR OSFP
NOPRICE
PCIE PCIe 6.0
PORT 1
SPEED 400GbE

NVIDIA ConnectX Compatibility

The NVIDIA ConnectX-8 C8180 900-9X81E-00EX-ST0 requires a server with a PCIe Gen6 x16 slot (64GT/s) with backward compatibility to Gen5. The adapter uses a Half-Height, Half-Length (HHHL) form factor measuring 2.69 in. × 6.58 in. (68.50mm × 168.40mm) and requires adequate airflow for operational temperatures between 0°C to 55°C. Your server's power supply must deliver 12V, 3.3V, and 3.3VAUX rails with sufficient amperage per NVIDIA's Product Specifications document. Verify that the motherboard BIOS supports PCIe Gen6 operation and that the chassis provides sufficient physical clearance and thermal management for the adapter.

For software compatibility, the ConnectX-8 C8180 is supported on Linux distributions (RHEL, Ubuntu) and Windows through WinOF-2 (Windows OpenFabrics Distribution) with in-box drivers provided by NVIDIA. The adapter requires the DOCA Host software stack and OpenFabrics libraries for full functionality, as well as MFT (NVIDIA Firmware Tools) for management and firmware updates. Confirm that your operating system version is covered by NVIDIA's current driver release notes before deployment.

The adapter's default configuration is 800Gb/s XDR InfiniBand and supports two 400GbE Ethernet ports when configured for Ethernet operation. Verify that your InfiniBand or Ethernet switch fabric supports the intended protocol and speed (XDR, NDR, HDR, HDR100, EDR, or SDR for InfiniBand; or 25/100/200/400 Gb/s Ethernet). Network connectivity requires NVIDIA LinkX-qualified cables and transceivers. single-cage OSFP connectors support Direct Attach Copper, Active Optical Cables, and passive solutions with cable reach from 0.5m to 10km. For multi-host configurations, the SocketDirect extension option (auxiliary kit 930-9XAX6-0025-000) enables connection between two servers.

OEM server compatibility is not published as a universal list. Contact your server manufacturer (Dell, HPE, Lenovo, or others) to confirm validated ConnectX-8 C8180 support, as motherboard design, PCIe topology, and firmware implementations vary by platform. For complete electrical and thermal specifications, contact NVIDIA Enterprise Support (enterprisesupport@nvidia.com).

Frequently Asked Questions

What is the NVIDIA ConnectX-8 C8180 900-9X81E-00EX-ST0?

The NVIDIA ConnectX-8 C8180 900-9X81E-00EX-ST0 is a high-performance SuperNIC designed for AI infrastructure, high-performance computing (HPC), hyperscale data centers, and other demanding networking environments. It features a PCIe 6.0 x16 host interface and a single-cage OSFP connector with support for both InfiniBand and Ethernet networking.

Does the NVIDIA ConnectX-8 C8180 support 800GbE?

The 900-9X81E-00EX-ST0 supports up to 800Gb/s networking, but its default configuration is 800Gb/s XDR InfiniBand rather than 800GbE. When configured for Ethernet, the adapter supports two 400GbE ports.

Can the ConnectX-8 C8180 be used for Ethernet networking?

Yes. The NVIDIA ConnectX-8 C8180 supports Ethernet networking in addition to InfiniBand. The 900-9X81E-00EX-ST0 can be configured for two 400GbE Ethernet ports, making it suitable for high-bandwidth data center, AI, HPC, and cloud networking environments.

What PCIe interface does the NVIDIA ConnectX-8 C8180 use?

The NVIDIA ConnectX-8 C8180 900-9X81E-00EX-ST0 uses a PCIe 6.0 x16 host interface. The adapter is designed for systems with the appropriate PCIe 6.0 x16 slot and platform support.

What connector does the ConnectX-8 C8180 use?

The 900-9X81E-00EX-ST0 uses a single-cage OSFP connector. OSFP provides the high-bandwidth physical interface required for the adapter's supported networking configurations.

Is the NVIDIA ConnectX-8 C8180 a VPI network adapter?

Yes. The ConnectX-8 C8180 is a Virtual Protocol Interconnect (VPI) adapter capable of supporting both InfiniBand and Ethernet networking. The 900-9X81E-00EX-ST0 has an 800Gb/s XDR InfiniBand default configuration and supports two 400GbE ports when configured for Ethernet.

What is the NVIDIA ConnectX-8 C8180 used for?

The ConnectX-8 C8180 is designed for demanding workloads including artificial intelligence and machine learning infrastructure, high-performance computing, hyperscale cloud data centers, distributed computing, and other applications requiring extremely high bandwidth and low latency.

What is the form factor of the NVIDIA ConnectX-8 C8180?

The NVIDIA ConnectX-8 C8180 900-9X81E-00EX-ST0 uses a Half-Height Half-Length (HHHL) form factor.

What is the MPN for this NVIDIA ConnectX-8 adapter?

The manufacturer part number (MPN) for this NVIDIA ConnectX-8 C8180 SuperNIC is 900-9X81E-00EX-ST0.

Is the NVIDIA ConnectX-8 C8180 compatible with my server?

Compatibility depends on the server's PCIe slot and platform support, available physical space, operating system and driver support, networking infrastructure, and the cables or transceivers required for the intended configuration. Verify your server and networking requirements before purchasing.

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