MCX653105A-ECAT-SP: Exact OPN and Host Qualification

Qualification answer

MCX653105A-ECAT-SP should be approved as a complete ordering part number, not as a generic ConnectX-6 label. The retained record lists one QSFP56 port, InfiniBand modes through HDR100, Ethernet modes through 100GbE, PCIe 3.0/4.0 x16 and RDMA support. It does not define the -SP suffix, so the exact offered item and its host-support evidence must be confirmed before a substitution or deployment decision.

Recorded attributes and proof required

When this exact OPN can enter a shortlist

• Ready for lab qualification: the supplier evidence and received identity both use MCX653105A-ECAT-SP, and the complete host-to-switch path is known.
• Needs clarification: the offer omits the suffix, cites only a family data sheet or changes the OPN between quotation and packing list.
• Not ready for approval: the design expects two physical adapter ports, HDR or 200GbE, or assumes connector matching alone proves compatibility.

SP and unsuffixed records

The retained MCX653105A-ECAT-SP and MCX653105A-ECAT pages show the same high-level port, rate, PCIe and adapter-family values. Those common fields do not establish that the two complete OPNs are commercially or technically interchangeable. Require current exact-OPN documentation, keep substitutions under change control and test the actual supplied hardware. Do not assign an undocumented meaning to the suffix.

Quote and bill-of-material controls

1. Write MCX653105A-ECAT-SP in full on the request, quote comparison and bill of materials.
2. Attach the exact-OPN specification or supported-system entry rather than a family brochure alone.
3. Record the server model, slot location, PCIe generation and width, CPU or NUMA placement and lane-sharing constraints.
4. List the switch port, target protocol and rate, plus the complete cable or transceiver OPN.
5. Define who must re-approve the item if the received suffix, hardware identity or support evidence changes.

Acceptance evidence path

• Compare the received label and management-reported identity with the approved OPN.
• Capture negotiated PCIe generation and width, firmware, driver and operating-system versions.
• Verify the chosen InfiniBand or Ethernet mode, link rate, applicable FEC, counters and RDMA operation.
• Run representative traffic, reboot and recovery tests, then retain results against the exact device and media identities.

FAQ

What does the SP suffix mean?

The retained record does not define it. Use current exact-OPN evidence rather than inferring a region, bundle, hardware or support difference.

Can MCX653105A-ECAT be accepted as a direct substitute?

Not automatically. Shared high-level fields are insufficient; the change needs identity documentation and qualification on the intended host and network path.

Does PCIe 3.0 support guarantee the target server will work?

No. Confirm actual electrical width, lane allocation, BIOS, firmware, driver and workload behavior on that server.

Evidence boundary: This page retains only the stored OPN, port, mode, PCIe, family and RDMA attributes. It does not define the SP suffix or confirm price, stock, delivery, authorization, certification, warranty, lifecycle, equivalence or performance improvement.

Review the network-adapter catalog, match a supported QSFP56 cable or optic path, compare deployment contexts, and submit the exact-OPN evidence through the enterprise buyer guide.