ConnectX-7 Card technical selection Q&A
Owner-confirmed and documentation-backed questions with explicit variant applicability and source boundaries.
These questions were prepared for technical evaluation from cited documentation. They are not a measured list of frequently asked customer questions. The applicability line belongs to each answer; do not transfer a statement between order-code, firmware, cooling, length, form-factor or crypto variants.
The products listed below are the applicable catalog references. Answers use owner-confirmed manufacturer-origin product data, scoped public documentation, or explicitly stated engineering guidance. Genuine conflicting values are qualified individually.
Is this a conventional single-IC NIC?
Applicable catalog candidates: 900-9X720-007N-SN0, 900-9X720-007N-SN1.
No. The official firmware table describes four ConnectX-7 devices in one adapter assembly.
Public references: Firmware Compatible Products | ConnectX-7 Firmware RN.
What networking capability is verified?
Applicable catalog candidates: 900-9X720-007N-SN0, 900-9X720-007N-SN1.
Each ConnectX-7 device is described as supporting up to 400Gb/s InfiniBand, the default mode, or 400GbE. That description does not prove a specific external port/cable arrangement.
Public references: Firmware Compatible Products | ConnectX-7 Firmware RN.
What is the host interface?
Applicable catalog candidates: 900-9X720-007N-SN0, 900-9X720-007N-SN1.
The official description specifies PCIe 5.0 x32 and a PCIe switch. Confirm the actual server integration; do not assume an ordinary x16 stand-up slot.
Public references: Firmware Compatible Products | ConnectX-7 Firmware RN.
How does 0D00 differ from 0D0K?
Applicable catalog candidates: 900-9X720-007N-SN0, 900-9X720-007N-SN1.
The owner-supplied exact description explicitly identifies 0D0K as supplied without a heatsink. Both codes share the public firmware description of four ConnectX-7 devices. The supplied description does not independently establish which heatsink, if any, accompanies 0D00; confirm its bill of materials rather than infer it.
Public references: Firmware Compatible Products | ConnectX-7 Firmware RN.
Is crypto enabled?
Applicable catalog candidates: 900-9X720-007N-SN0, 900-9X720-007N-SN1.
No. Crypto is disabled and secure boot is enabled in the official firmware description.
Public references: Firmware Compatible Products | ConnectX-7 Firmware RN.
Does the shared PSID establish physical interchangeability?
Applicable catalog candidates: 900-9X720-007N-SN0, 900-9X720-007N-SN1.
No. A shared firmware identity is not proof of matching dimensions, connector placement, cooling or supplied accessories. Obtain the mechanical BOM and server qualification.
Public references: Firmware Compatible Products | ConnectX-7 Firmware RN.
Which connector and host slot does this order code require?
Applicable catalog candidates: 900-9X766-003N-SQ0.
MCX75310AAS-NEAT uses 1 OSFP port and PCIe 5.0 x16. The card is HHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Does it support Ethernet as well as InfiniBand?
Applicable catalog candidates: 900-9X766-003N-SQ0.
The exact ordering table lists 400GbE and NDR InfiniBand. Both protocols require hardware revision AA or higher.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Are crypto and secure boot the same option?
Applicable catalog candidates: 900-9X766-003N-SQ0, 900-9X766-003N-ST0, 900-9X7AO-0003-ST0.
No. Secure boot is enabled on this order code; crypto is disabled. These are separately identified capabilities, so retain the exact suffix when ordering.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
How should a link that will not come up be checked?
Applicable catalog candidates: 900-9X766-003N-SQ0, 900-9X766-003N-SR0, 900-9X766-003N-ST0, 900-9X7AH-004N-CT0, 900-9X7AO-0003-ST0, 900-9X7AO-00C3-STZ.
Check seating, cable connection, the intended port configuration and supported firmware/driver combination. Compare cable or module compatibility and the peer switch settings before treating a missing link as hardware failure.
Public references: Troubleshooting | NVIDIA ConnectX-7 Adapter Cards User Manual.
Can the quoted typical power be used as the server thermal limit?
Applicable catalog candidates: 900-9X766-003N-SQ0.
No. NVIDIA lists 24.9 W with passive cables in PCIe Gen5 x16 for this variant. Maximum power and required airflow need the full product specifications and the exact server/optics configuration.
Public references: Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual.
What special selection check applies to this variant?
Applicable catalog candidates: 900-9X766-003N-SQ0.
Confirm hardware revision AA or higher for Ethernet/InfiniBand operation.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual, Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual, Supported Interfaces | NVIDIA ConnectX-7 Adapter Cards User Manual.
Which connector and host slot does this order code require?
Applicable catalog candidates: 900-9X766-003N-SR0.
MCX75310AAC-NEAT uses 1 OSFP port and PCIe 5.0 x16. The card is HHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Does it support Ethernet as well as InfiniBand?
Applicable catalog candidates: 900-9X766-003N-SR0.
The exact ordering table lists 400GbE and NDR InfiniBand.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Are crypto and secure boot the same option?
Applicable catalog candidates: 900-9X766-003N-SR0, 900-9X7AH-004N-CT0, 900-9X7AO-00C3-STZ.
No. Secure boot is enabled on this order code; crypto is enabled. These are separately identified capabilities, so retain the exact suffix when ordering.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Can the quoted typical power be used as the server thermal limit?
Applicable catalog candidates: 900-9X766-003N-SR0.
No. NVIDIA lists 25.9 W with passive cables in PCIe Gen5 x16 for this variant. Maximum power and required airflow need the full product specifications and the exact server/optics configuration.
Public references: Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual.
What special selection check applies to this variant?
Applicable catalog candidates: 900-9X766-003N-SR0, 900-9X7AO-0003-ST0, 900-9X7AO-00C3-STZ.
Match the exact crypto suffix and mechanical drawing. A shared ConnectX-7 name does not make a different connector, bracket or form factor a substitute.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual, Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual, Supported Interfaces | NVIDIA ConnectX-7 Adapter Cards User Manual.
Which connector and host slot does this order code require?
Applicable catalog candidates: 900-9X766-003N-ST0.
MCX75310AAS-HEAT uses 1 OSFP port and PCIe 5.0 x16. The card is HHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Does it support Ethernet as well as InfiniBand?
Applicable catalog candidates: 900-9X766-003N-ST0.
The exact ordering table lists 200GbE and NDR200 InfiniBand. Both protocols require hardware revision A7 or higher.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Can the quoted typical power be used as the server thermal limit?
Applicable catalog candidates: 900-9X766-003N-ST0.
No. NVIDIA lists 16.7 W with passive cables in PCIe Gen5 x16 for this variant. Maximum power and required airflow need the full product specifications and the exact server/optics configuration.
Public references: Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual.
What special selection check applies to this variant?
Applicable catalog candidates: 900-9X766-003N-ST0.
Confirm hardware revision A7 or higher for Ethernet/InfiniBand operation.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual, Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual, Supported Interfaces | NVIDIA ConnectX-7 Adapter Cards User Manual.
Can this card be installed in a normal stand-up PCIe slot?
Applicable catalog candidates: 900-9X7A6-00B3-SI0.
It is an OCP 3.0 SFF card with an internal-lock bracket. Use a compatible OCP 3.0 server slot and retention arrangement.
Public references: NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual, Supported Interfaces | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual.
Does this exact variant support 50GbE?
Applicable catalog candidates: 900-9X7A6-00B3-SI0.
Yes. The MCX713434AS-ADAI model-specific specification and owner technical data state 25/50GbE. The overview lists 25GbE as the default configuration; it should not be treated as proof that 50GbE is unavailable. For the 50GbE configuration, the exact specification permits passive connections only.
Public references: ConnectX-7 OCP 3.0: MCX713434AS-ADAI specifications, NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual.
Is this a released mass-production SKU?
Applicable catalog candidates: 900-9X7A6-00B3-SI0.
The current official ordering table marks it Prototype. Confirm lifecycle and availability before committing to a rollout.
Public references: NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual, Supported Interfaces | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual.
Is hardware crypto enabled?
Applicable catalog candidates: 900-9X7A6-00B3-SI0.
No. Crypto is disabled; secure boot is enabled.
Public references: NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual, Supported Interfaces | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual.
Will Multi-Host work in every server?
Applicable catalog candidates: 900-9X7A6-00B3-SI0.
No. The card advertises capabilities and the OCP baseboard selects the PCIe configuration. Server bifurcation and firmware qualification are required.
Public references: NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual, Supported Interfaces | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual.
Which PCIe generation should be used for qualification?
Applicable catalog candidates: 900-9X7A6-00B3-SI0.
The exact-model specification and owner data state PCIe 4.0 x16, but the overview ordering table says PCIe 5.0 x16. Use the exact model as the working technical basis and confirm the supplied assembly before asserting an unqualified generation or server-compatibility claim.
Public references: ConnectX-7 OCP 3.0: MCX713434AS-ADAI specifications, NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual.
Which connector and host slot does this order code require?
Applicable catalog candidates: 900-9X7AH-004N-CT0.
MCX713114TC-GEAT uses 4 SFP56 ports and PCIe 4.0 x16. The card is FHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Does it support Ethernet as well as InfiniBand?
Applicable catalog candidates: 900-9X7AH-004N-CT0, 900-9X7AO-0003-ST0, 900-9X7AO-00C3-STZ.
This exact quad-port SFP56 variant is listed for 25/50GbE Ethernet. Do not transfer the InfiniBand capability of other ConnectX-7 variants to this card.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Can the quoted typical power be used as the server thermal limit?
Applicable catalog candidates: 900-9X7AH-004N-CT0, 900-9X7AO-00C3-STZ.
No. NVIDIA lists 15.8 W with passive cables in PCIe Gen4 x16 for this variant. Maximum power and required airflow need the full product specifications and the exact server/optics configuration.
Public references: Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual.
What special selection check applies to this variant?
Applicable catalog candidates: 900-9X7AH-004N-CT0.
For synchronized telecom applications, verify PPS, clock cabling and the timing profile; the associated timing cables are not included.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual, Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual, Supported Interfaces | NVIDIA ConnectX-7 Adapter Cards User Manual.
Which connector and host slot does this order code require?
Applicable catalog candidates: 900-9X7AO-0003-ST0.
MCX713104AS-ADAT uses 4 SFP56 ports and PCIe 4.0 x16. The card is HHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Can the quoted typical power be used as the server thermal limit?
Applicable catalog candidates: 900-9X7AO-0003-ST0.
No. NVIDIA lists 15.1 W with passive cables in PCIe Gen4 x16 for this variant. Maximum power and required airflow need the full product specifications and the exact server/optics configuration.
Public references: Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual.
Which connector and host slot does this order code require?
Applicable catalog candidates: 900-9X7AO-00C3-STZ.
MCX713104AC-ADAT uses 4 SFP56 ports and PCIe 4.0 x16. The card is HHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references: NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual.
Availability is on request. Sales provides the USD quotation after the exact configuration is confirmed. No stock, condition or delivery promise is made here.
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