ConnectX-6 Lx IC technical selection Q&A

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 ready-to-install PCIe adapter?

Applicable catalog candidates: MT28942A0-CCCF-AE.

No. MT28942A0-CCCF-AE is an integrated circuit for a qualified board design. An adapter card adds connectors, PCB routing, memory where applicable, power delivery, cooling and firmware configuration.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums.

Which network and host-interface parameters are specified?

Applicable catalog candidates: MT28942A0-CCCF-AE, MT28942A0-NCCF-AE.

The owner specification lists 2 network ports, 25GbE and PCIe 3.0/4.0 x8. Use the supported board port mode to determine the final connector arrangement.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, H3C network adapters: NIC-ETH641F-LP-2P, Table 24.

Which security variant is this?

Applicable catalog candidates: MT28942A0-CCCF-AE.

Hardware crypto is enabled in this exact owner-confirmed description. Secure-boot status is not supplied for this bare-IC order code and should not be copied from a finished card.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, NVIDIA ConnectX-7 NDR InfiniBand datasheet, NVIDIA ConnectX-7 product brief hosted by PNY (printed DEC21).

Is Multi-Host capability established for this suffix?

Applicable catalog candidates: MT28942A0-CCCF-AE, MT28942A0-NCCF-AE.

Multi-Host capability is not stated in the exact owner description for this variant. Do not infer its presence or absence from a related suffix or a finished adapter card.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, H3C network adapters: NIC-ETH641F-LP-2P, Table 24, NVIDIA ConnectX-7 NDR InfiniBand datasheet, NVIDIA ConnectX-7 product brief hosted by PNY (printed DEC21).

Can finished-card power, size or connector specifications be used for this IC?

Applicable catalog candidates: MT28942A0-CCCF-AE, MT28942A0-NCCF-AE.

No. Those values depend on the board implementation. Keep chip package dimensions, chip power and thermal limits separate from completed-card dimensions, cage types, brackets and board power.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, H3C network adapters: NIC-ETH641F-LP-2P, Table 24, NVIDIA ConnectX-7 NDR InfiniBand datasheet, NVIDIA ConnectX-7 product brief hosted by PNY (printed DEC21).

What engineering details are needed before board design?

Applicable catalog candidates: MT28942A0-CCCF-AE.

Obtain the exact package drawing and pinout, power-rail requirements, thermal limits, supported port modes, clocking and firmware/strap requirements. Public adapter-card documentation provides family context, not a complete silicon design specification.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, NVIDIA ConnectX-7 NDR InfiniBand datasheet, NVIDIA ConnectX-7 product brief hosted by PNY (printed DEC21).

Is this a ready-to-install PCIe adapter?

Applicable catalog candidates: MT28942A0-NCCF-AE.

No. MT28942A0-NCCF-AE is an integrated circuit for a qualified board design. An adapter card adds connectors, PCB routing, memory where applicable, power delivery, cooling and firmware configuration.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, H3C network adapters: NIC-ETH641F-LP-2P, Table 24.

Which security variant is this?

Applicable catalog candidates: MT28942A0-NCCF-AE.

Hardware crypto is disabled in this exact owner-confirmed description. Secure-boot status is not supplied for this bare-IC order code and should not be copied from a finished card.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, H3C network adapters: NIC-ETH641F-LP-2P, Table 24, NVIDIA ConnectX-7 NDR InfiniBand datasheet, NVIDIA ConnectX-7 product brief hosted by PNY (printed DEC21).

Is there an official example of this chip in an OEM board?

Applicable catalog candidates: MT28942A0-NCCF-AE.

Yes. H3C names MT28942A0-NCCF-AE in its NIC-ETH641F-LP-2P documentation. That example uses two 25GE interfaces and PCIe 4.0 x8 at board level. Its 13 W board-power figure and mechanical/connector details must not be assigned as standalone chip ratings.

Public references: MCX631102AN-ADAT card questions - Network Management Products - NVIDIA Developer Forums, H3C network adapters: NIC-ETH641F-LP-2P, Table 24.

Availability is on request. Sales provides the USD quotation after the exact configuration is confirmed. No stock, condition or delivery promise is made here.

Technical illustrations