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Product reference illustration, not a photograph of the offered stock. Connector, cooling and length variants are defined by the exact part number.

网络适配器

C8240

NVIDIA NVIDIA ConnectX-8 C8240 900-9X81Q-00CN-ST0 400GbE / 400Gb/s HHHL Network Adapter

P/N:C8240NVIDIA OPN: 900-9X81Q-00CN-ST0SwitchInfra item:7560品牌: NVIDIA
规格参数

900-9X81Q-00CN-ST0 specifications

速率：400GbE / 400Gb/s; Connector: QSFP112; PCIe Interface: PCIe 6 x16; Form Factor: HHHL.
料号C8240
Host interfacePCIe 6 x16; x16 SocketDirect extension option
Port count2
接口QSFP112
封装类型HHHL / HHHL PCIe card
品牌NVIDIA
型号900-9X81Q-00CN-ST0
端口Dual-port
cryptoYes
familyConnectX-8
categoryvpi_supernic
成色全新
速率400GbE / 400Gb/s
protocolsInfiniBand, Ethernet
Secure bootYes
PCIe InterfacePCIe 6 x16
Default protocolEthernet
Speed or computeNDR IB / 400 GbE
Lifecycle literalMass Production
Ports or connector2 QSFP112
Canonical order code900-9X81Q-00CN-ST0
Card dimensions (mm)66.4 x 168.4
Host pcie signal rate gtps64
Optional extension interfacePCIe 5 x16 at 32 GT/s in card specification; qualify auxiliary kit separately
Ethernet supported rates (Gb/s)100, 200, 400
Operating temperature (degrees C)0 to 55

下单前确认

  • 确认准确的 SKU、料号、规格选项与数量。
  • 确认主机平台、端口、电气接口与固件兼容要求。
  • 付款前确认库存、交期、目的地与适用售后条款。
产品描述
The ConnectX-8 C8240 SuperNIC, order code 900-9X81Q-00CN-ST0, combines two QSFP112 ports with PCIe 6.0 x16 host connectivity. The exact specification lists 400 GbE Ethernet and NDR InfiniBand, with Ethernet as the default protocol. Hardware crypto and secure boot are enabled, and an x16 Socket Direct extension option is documented. Its dual-QSFP112 arrangement is distinct from the single-OSFP XDR C8180 configuration.

产品问答

Is C8240 an 800 Gb/s XDR OSFP card?

No. This exact C8240 uses dual QSFP112 ports and is listed for 400 GbE/NDR. C8180 is the distinct single-OSFP configuration with 800 Gb/s XDR support.

Which protocol is the default?

Ethernet is the documented default for 900-9X81Q-00CN-ST0. Verify the actual port configuration when moving between Ethernet and InfiniBand fabrics.

Does the optional extension operate at the primary PCIe generation?

The primary interface is Gen 6 x16 at 64 GT/s. The C8240 specification describes the optional passive-card extension as Gen 5 x16 at 32 GT/s. The selected accessory assembly must be checked separately.

Are crypto and secure boot enabled?

Yes. Both are explicitly enabled for the exact ST0 code in the model-specific specification.

Which cable family should be selected?

Start from its QSFP112 connectors and intended protocol/rate, then use the validated interconnect list for the hardware and firmware version. A C8180 OSFP cable choice is not automatically transferable.

What remains to be validated for a server?

Confirm the negotiated PCIe state, lane topology, auxiliary assembly, power and airflow, firmware support, connector clearance and intended port configuration under a representative workload.

可以先描述需求，型号、主机或数量尚未确定也能咨询。

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