Manufacturer reference image. Included components and condition follow the selected item.

网络适配器

MCX4121A-ACAT

NVIDIA ConnectX-4 Lx MCX4121A-ACAT

P/N:MCX4121A-ACATNVIDIA OPN: 900-9X4B0-0053-0T1SwitchInfra item:7732品牌: NVIDIA
规格参数
料号MCX4121A-ACAT
Host interfacePCIe 3.0 x8
Port count2
接口SFP28
封装类型Low-profile PCIe card
imageNoteManufacturer reference image. Included components and condition follow the selected item.
familyConnectX-4 Lx
categoryethernet_nic
protocolsEthernet
Speed or compute25 GbE
Lifecycle literalEnd of Life
Ports or connector2 SFP28
Airflow lfm passive300
Canonical order code900-9X4B0-0053-0T1
Card dimensions (mm)68.9 x 142.24
Maximum power w passive11.6
Typical power w passive9.6
Ethernet supported rates (Gb/s)1, 10, 25
Operating temperature (degrees C)0 to 55

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  • 确认准确的 SKU、料号、规格选项与数量。
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  • 付款前确认库存、交期、目的地与适用售后条款。
产品描述
MCX4121A-ACAT is a ConnectX-4 Lx low-profile Ethernet adapter with two SFP28 ports, 1/10/25 GbE support and a PCIe 3 x8 interface. It is a legacy configuration that NVIDIA lists as end of life. The published technical specification remains useful for maintaining qualified 25 GbE systems, but current firmware, operating-system support, bracket contents and unit condition should be verified before a replacement deployment.

产品问答

Is ACAT the 10 GbE XCAT version?

No. MCX4121A-ACAT is the dual-SFP28 1/10/25 GbE configuration; XCAT is a separate 10 GbE ordering variant.

What does its end-of-life listing mean for a replacement?

NVIDIA lists the product line and exact ordering entries as end of life. This is lifecycle information, not proof that an individual card is faulty. Verify current software compatibility, support needs and unit condition.

Is PCIe 3 x8 the expected host interface?

Yes. The exact specification gives PCIe Gen 3, eight lanes, with earlier-generation compatibility. Record the actual negotiated link state in the target server.

What power does the passive-cable table list?

9.6 W typical and 11.6 W maximum with passive cables. Active cables have a separate power condition; do not reuse the passive maximum unchanged.

Does the ACAT suffix establish secure firmware?

The introduction lists secure firmware for ACST as a separate variant. Do not infer that ACAT has the same secure-firmware or UEFI configuration merely from the shared board family.

What should be included in an acceptance test?

Confirm identity/PSID, driver and firmware compatibility, both port links at the intended rate, error counters, airflow and workload throughput. Test the system with the intended SFP28 interconnects rather than an unrelated cable.

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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