NVIDIA 920-9K36W-00MV-GS0 — GB200 NVL72 NVLink Switch Tray
Identity
This is an NVLink Switch Tray for the NVIDIA GB200 NVL72 rack-scale platform, supplied New by T.E.S IT-SOLUTIONS under NVIDIA ordering part number 920-9K36W-00MV-GS0. NVIDIA’s own GB200 NVL72 rack firmware documentation records 920-9K36W-00MV-GS0 as the ASIC part number reported by NVLink Switch trays in GB200 NVL72 systems (observed ASIC firmware 35.2014.1652; BMC part 692-13809-1404-000). It IS a memory-semantic NVLink fabric device that installs into a GB200 NVL72 rack. It IS NOT an Ethernet switch, an InfiniBand switch, a power supply, a fan module or a rail kit, and it is not a standalone appliance — it has no user-facing front ports and blind-mates to the rack midplane.
Engineering Context
A GB200 NVL72 rack is built from 18 compute trays and 9 NVLink Switch trays. Each switch tray carries two NVLink Switch ASICs presenting 144 NVLink ports in total, and the nine-tray set forms the fifth-generation NVLink Switch System that delivers 130 TB/s of aggregate low-latency GPU-to-GPU communication across the rack’s 72-GPU NVLink domain (36 Grace CPUs, 72 Blackwell GPUs). Fifth-generation NVLink provides 1.8 TB/s bidirectional bandwidth per Blackwell GPU. The tray is liquid-cooled by design; NVL72 racks run at roughly 120–132 kW nominal per published integrator specifications. On-tray firmware — ASIC, BIOS, BMC, four CPLD images, EROT and FPGA — is managed through NVOS and the nvfwupd utility.
Deployment & Use Cases
Deployed as the switching layer in NVIDIA GB200 NVL72 and NVL36 rack-scale systems for trillion-parameter LLM training, real-time LLM inference, mixture-of-experts model parallelism, and HPC workloads that depend on a unified 72-GPU NVLink memory domain. Typical procurement cases: spare-tray stocking for an operational NVL72 rack, RMA replacement of a failed switch tray, and completing a partially populated rack during build-out. Not applicable to PCIe-attached GPU servers, HGX H100/A100 platforms, or conventional Ethernet and InfiniBand fabrics.
Technical Specifications
Brand: NVIDIA
NVIDIA OPN (MPN): 920-9K36W-00MV-GS0
Product type: NVLink Switch Tray (rack-scale fabric module)
Platform: NVIDIA GB200 NVL72 / NVL36 rack-scale system
NVLink generation: NVLink 5 (fifth generation)
NVLink Switch ASICs per tray: 2
NVLink ports per tray: 144 (internal, midplane-mated)
Switch trays per NVL72 rack: 9
Compute trays per NVL72 rack: 18
Rack NVLink domain: 72 Blackwell GPUs / 36 Grace CPUs
Rack aggregate NVLink bandwidth: 130 TB/s
Per-GPU NVLink bandwidth: 1.8 TB/s bidirectional
Cooling: Liquid-cooled (direct-to-chip, rack-integrated)
Observed ASIC firmware: 35.2014.1652
Firmware management: NVOS / nvfwupd
Condition: New
Compatibility & Hard Constraints
Compatible with: NVIDIA GB200 NVL72 and NVL36 rack-scale systems only. The tray blind-mates to the rack NVLink midplane and cannot operate outside that chassis.
NOT compatible with: standalone PCIe servers, HGX H100 / A100 NVLink bridge topologies, and Ethernet or InfiniBand fabrics. This is a dedicated internal NVLink fabric device, not a network switch.
NOT cross-generation: GB300 NVL racks use a different tray (NVIDIA OPN 920-9K33R-00MV-GS0, system model N5500_LD). Do not substitute a GB200 tray into a GB300 rack or the reverse.
Firmware floor: rack management firmware must match the tray’s ASIC / BIOS / BMC / CPLD stack. Verify with nv show platform firmware and stage packages with nvfwupd before insertion; a mismatched NVOS level can prevent NVLink SerDes lanes from training.
Handling: the rear interface carries exposed blind-mating connectors. Pin damage during slide-in is the most common cause of dead-on-arrival switch trays — install with the rack rails properly aligned.
Model-ID note: the closely related NVIDIA OPN 920-9K36K-00MV-GS0 reports system model N5400_LD on board GB200-P4978. T.E.S IT-SOLUTIONS confirms the exact system model and board revision from the physical unit label in writing before dispatch rather than inferring it from the adjacent OPN.
Why T.E.S IT-SOLUTIONS
Every unit is verified against its physical NVIDIA OPN and regulatory label, cosmetically inspected, and shipped in professional anti-static packaging from EU stock with 1–3 business day handling and tracked worldwide B2B delivery. Technical consultation on NVLink topology, rack population and firmware staging is included at no extra cost. See tes-itsolutions.com.
Frequently Asked Questions
Q. How many NVLink ports does the NVIDIA 920-9K36W-00MV-GS0 switch tray provide?
The 920-9K36W-00MV-GS0 tray carries two NVLink Switch ASICs presenting 144 internal NVLink ports. Nine of these trays form the NVLink Switch System of a GB200 NVL72 rack, delivering 130 TB/s of aggregate GPU-to-GPU bandwidth across a 72-GPU NVLink domain, with 1.8 TB/s bidirectional per Blackwell GPU.
Q. Can 920-9K36W-00MV-GS0 be used in a standard server or connected to an Ethernet or InfiniBand network?
No. 920-9K36W-00MV-GS0 is an internal NVLink fabric tray with no user-facing ports; it blind-mates to the NVLink midplane of a GB200 NVL72 or NVL36 rack. It cannot be installed in a PCIe server, cannot bridge HGX H100 or A100 systems, and is not an Ethernet or InfiniBand switch. It is also not interchangeable with the GB300 tray, NVIDIA OPN 920-9K33R-00MV-GS0.
Q. What condition is 920-9K36W-00MV-GS0 supplied in by T.E.S IT-SOLUTIONS?
New. Each 920-9K36W-00MV-GS0 tray is checked against its physical NVIDIA OPN and regulatory label, and the confirmed system model and board revision are stated in writing on the quotation. Stock is held in the European Union with 1–3 business day handling and worldwide B2B express shipping from T.E.S IT-SOLUTIONS, tes-itsolutions.com.