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Green circuit board half-height card with single OSFP cage and gold PCIe edge connector

NVIDIA

NVIDIA 900-9X81E-00EX-SL0 network card C8180L 800Gbs XDR IB 2x400GbE OSFP PCIe 6 x16 HHHL

SKU CH-YNQW-AJNSZ MPN 900-9X81E-00EX-SL0

Single-port OSFP card runs 800Gbs InfiniBand XDR or 2x400GbE over PCIe 6 x16 in a half-height bracket

  • Rated speedInfiniBand: 800Gbs XDR IB (Default) Ethernet: 2 × 400GbE
  • Connection typesPort Type: Single-cage OSFP
  • Key featuresForm Factor: Half-Height, Half-Length (HHHL) PCI Express: PC
  • Single OSFP cage supports InfiniBand and Ethernet
  • 800 Gbs XDR InfiniBand default speed
  • 2×400 GbE Ethernet alternative mode
  • Half-height half-length fits dense servers
  • PCIe 6 x16 with SocketDirect extension

Single-cage OSFP Connectivity

The NVIDIA ConnectX-8 C8180L is a half-height, half-length network card built for a PCIe 6 x16 slot. It uses a single OSFP cage to deliver 800 Gbs XDR InfiniBand or two lanes of 400 GbE. The card includes an x16 PCIe SocketDirect extension option and integrated crypto acceleration. It targets data-centre clusters that need 800 Gb/s density in a low-profile form factor.

Suited for 800 Gbs XDR fabrics.

This adapter fits servers deploying a single 800 Gbs InfiniBand link or dual 400 GbE uplinks. Buyers who need more than one physical port from the card, or whose infrastructure runs at lower speeds without a migration path to 800 Gbs, should consider other form factors. The half-height profile also limits use in full-height-only chassis.

PCIe 6 x16 interface requirement

The card requires a PCIe 6 x16 slot to operate at its rated 800 Gbs XDR InfiniBand and 2x400 GbE throughput. Systems limited to PCIe 5 or narrower link widths cannot sustain the advertised bandwidth. Verify that the host platform provides a genuine PCIe 6 x16 connection before purchase.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $2,282.99
Pricier than about 93% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameNVIDIA
Model nameC8180L
Part number900-9 × 81E-00EX-SL0
Performance
Rated speedInfiniBand: 800Gbs XDR IB (Default)
Ethernet: 2 × 400GbE
Ports & slots
Connection typesPort Type: Single-cage OSFP
Size & build
Shipping weight0.35 kg
Package size167 × 74 × 74 mm

Questions about this item

Should I pick the 800Gbs InfiniBand or the 2x400GbE mode for this C8180L?

The card defaults to 800Gbs XDR InfiniBand; the single OSFP cage also supports two 400GbE lanes if your fabric runs Ethernet.

What does the 800Gbs XDR InfiniBand rating mean once the card is installed in a server?

It provides a single 800Gbs InfiniBand link through the OSFP port, limited by the PCIe 6 x16 host bus and the x16 SocketDirect extension.

How does the PCIe 6 x16 interface with SocketDirect affect real-world throughput?

The x16 PCIe 6 link and SocketDirect extension let the card move data at line rate for the 800Gbs InfiniBand or dual 400GbE ports without host-bus bottleneck.

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