Q3400 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.
What is the specified configuration of 920-9B36F-00NX-GS0?
Applicable catalog candidates: 920-9B36F-00NX-GS0.
Documentation scope: Exact owner-confirmed product; any held field is explicitly identified in this record.
NVIDIA Quantum-3 based XDR InfiniBand Switch, Q3300-LD, 3U,144 XDR Ports over 72 OSFP Cages, 48 VDC, Standard Depth, Managed, 100% Liquid-cooled, Rail Kit.
Which configuration details should I confirm before ordering?
Applicable catalog candidates: 920-9B36F-00NX-GS0.
Documentation scope: Owner-confirmed catalog configuration plus explicitly scoped public documentation.
Keep the complete order code and legacy identifier together. Confirm the listed power, airflow or cooling arrangement, mounting requirements and included parts for the configuration being ordered.
Can I select a replacement by appearance or wattage alone?
Applicable catalog candidates: 920-9B36F-00NX-GS0, 920-9B36F-00RX-8S0, 930-9BPWA-00NA-000, 930-9BPWE-00NA-000, 930-9IAG1-0100IH, 930-9SECK-00MX-00A, 930-9SFAN-00RM-00G, 930-9SRKT-00F0-00C.
Documentation scope: family-level; exact compatibility not implied.
Use the manufacturer replacement-parts table for the complete switch model and order code. Matching dimensions, connector shape or PSU wattage alone does not establish compatibility.
Public references: Accessory and Replacement Parts | NVIDIA Spectrum-3 SN4000 1U and 2U Switch Systems Hardware User Manual, Accessory and Replacement Parts | NVIDIA Spectrum-4 SN5000 2U Switch Systems Hardware User Manual.
Does a public ordering or compatibility entry prove stock and delivery?
Applicable catalog candidates: 920-9B36F-00NX-GS0, 920-9B36F-00RX-8S0, 930-9BPWA-00NA-000, 930-9BPWE-00NA-000, 930-9IAG1-0100IH, 930-9SRKT-00F0-00C.
Documentation scope: Editorial procurement boundary; no promised availability.
No. Record the manufacturer’s published lifecycle wording separately from commercial availability. Stock, lead time, software entitlement, support and warranty require a current supplier quote.
Public references: QM97XX 1U NDR 400Gbps InfiniBand Switch Systems User Manual | QM97XX 1U NDR 400Gbps InfiniBand Switch Systems User Manual, Ordering Information | NVIDIA Spectrum-4 SN5000 2U Switch Systems Hardware User Manual.
How are Q3400-RA and Q3401-RD ports arranged?
Applicable catalog candidates: 920-9B36F-00RX-8S0.
Documentation scope: Q3400-RA and Q3401-RD.
Both are documented with 144 XDR data ports across 72 OSFP cages. NVIDIA also documents a separate fabric-management port, which should be considered separately in port planning.
Public references: NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual, Introduction | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual.
What is the practical difference between Q3400-RA and Q3401-RD power?
Applicable catalog candidates: 920-9B36F-00RX-8S0.
Documentation scope: Q3400-RA versus Q3401-RD.
The ordering table lists eight power supplies for Q3400-RA and 48 VDC busbar input for Q3401-RD. Both require the correct rack and cooling design; they are distinct purchase configurations.
Public references: NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual.
Does a power supply listing prove the required power cord is included?
Applicable catalog candidates: 920-9B36F-00RX-8S0, 930-9BPWA-00NA-000, 930-9BPWE-00NA-000.
Documentation scope: Switch system, PSU and power-cord selection.
Check the exact ordering row and quote. Some PSU rows explicitly include a cord; the Q3400-RA system ordering row explicitly excludes power cords. Cord region and electrical ratings still need checking.
Public references: Accessory and Replacement Parts | QM97XX 1U NDR 400Gbps InfiniBand Switch Systems User Manual, NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual.
Are the US and Europe/China cord codes the same?
Applicable catalog candidates: 930-9BPWA-00NA-000, 930-9BPWE-00NA-000.
Documentation scope: 930-9BPWA-00NA-000 and 930-9BPWE-00NA-000.
No. The Quantum manual assigns 930-9BPWA-00NA-000 to the US-listed cord and 930-9BPWE-00NA-000 to the Europe/China-listed cord. Both use C14-to-C15 connections, but their listed current ratings and approvals differ.
Public references: Accessory and Replacement Parts | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual.
What is the specified configuration of 930-9IAG1-0100IH?
Applicable catalog candidates: 930-9IAG1-0100IH.
Documentation scope: Exact owner-confirmed product; any held field is explicitly identified in this record.
NVIDIA ELS (External Laser Source) for Quantum-X Photonics switch.
Where should I check the replacement procedure?
Applicable catalog candidates: 930-9IAG1-0100IH, 930-9SFAN-00RM-00G, 930-9SRKT-00F0-00C.
Documentation scope: family-level; exact compatibility not implied.
Use the hardware manual for the exact chassis and component. Treat the replacement-parts list as ordering guidance; it does not replace the installation, airflow and safety instructions.
Public references: Installation | NVIDIA Spectrum-4 SN5000 2U Switch Systems Hardware User Manual, Installation | QM97XX 1U NDR 400Gbps InfiniBand Switch Systems User Manual.
What does 930-9SECK-00MX-00A support in public documentation?
Applicable catalog candidates: 930-9SECK-00MX-00A.
Documentation scope: 930-9SECK-00MX-00A.
It is the cleaning kit listed in the Q3450-LD ELS replacement procedure. That listing does not establish compatibility with Spectrum photonics cleaning kits or with an unverified Quantum variant.
Public references: ELS Replacement Procedure for Q3450-LD Systems | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual.
What is the Q3450-LD ELS maintenance sequence?
Applicable catalog candidates: 930-9SECK-00MX-00A.
Documentation scope: Q3450-LD service procedure; not authorization for work on live equipment.
NVIDIA’s procedure calls for inspection, cleaning when needed, and repeat inspection. Use the listed cleaning and inspection equipment and the complete service procedure, including its time and handling limits.
Public references: ELS Replacement Procedure for Q3450-LD Systems | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual.
Is an external laser source a conventional pluggable transceiver?
Applicable catalog candidates: 930-9SECK-00MX-00A.
Documentation scope: Documented CPO/ELS systems only.
NVIDIA documents ELS components separately for its photonics switch systems. Use the switch-specific ELS order code and service procedure; a conventional OSFP transceiver is not established as a substitute.
Public references: Accessory and Replacement Parts | NVIDIA Spectrum-6 SN6000 Switch Systems Hardware User Manual, ELS Replacement Procedure for Q3450-LD Systems | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual.
What do P2C and C2P mean?
Applicable catalog candidates: 930-9SFAN-00RM-00G.
Documentation scope: Air-cooled switch systems and their documented fans or PSUs.
P2C moves air from the power side toward the connectors. C2P moves air from the connectors toward the power side. Select the direction specified for the exact switch configuration.
Public references: Installation | NVIDIA Spectrum-4 SN5000 2U Switch Systems Hardware User Manual.
Are parts shared across every switch in the same series?
Applicable catalog candidates: 930-9SFAN-00RM-00G.
Documentation scope: family-level; exact compatibility not implied.
No blanket compatibility is documented. For example, the SN5000 table lists separate fans and rails for SN5610, while several SN5400/SN5600 parts share one row. Follow each row’s supported-systems scope.
Public references: Accessory and Replacement Parts | NVIDIA Spectrum-4 SN5000 2U Switch Systems Hardware User Manual.
What should I confirm before choosing a rack kit?
Applicable catalog candidates: 930-9SRKT-00F0-00C.
Documentation scope: Rail and rack-installation kits.
Confirm the switch model, rack type and post spacing. The manuals distinguish fixed and tool-less mounting and list model-specific kits; a nominal rack width does not establish fit.
Public references: Accessory and Replacement Parts | NVIDIA Spectrum-2 SN3000 1U and 2U Switch Systems Hardware User Manual, Accessory and Replacement Parts | SN2201 and SN2201_M 1G Management Switch Systems User Manual.
Which systems are listed for 930-9SRKT-00F0-00C?
Applicable catalog candidates: 930-9SRKT-00F0-00C.
Documentation scope: 930-9SRKT-00F0-00C only; cross-manual listings, not a new engineering qualification.
The owner-confirmed catalog specifies Q3200. The reviewed Quantum manual also lists Q3401/Q3450, and the Spectrum-6 manual lists SN6800-LD. These source lists are not stated to be exclusive. Match the intended chassis and rack during configuration review.
Public references: Accessory and Replacement Parts | NVIDIA Q32xx and Q34xx XDR 800Gb/s InfiniBand Switch Systems User Manual, Accessory and Replacement Parts | NVIDIA Spectrum-6 SN6000 Switch Systems Hardware 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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