Buying NVIDIA GB300 for a Data Centre? Prepare These Documents Before Requesting a Quote

Before you request a quote for GB300 systems in a data centre, prepare three sets of documents. The commercial set says what you want and how you buy: the system tier, quantity, timeline, support level and tender rules. The facility set proves the site can host it: rack power, liquid cooling, floor loading, network fabric and a colocation agreement. The compliance set covers who the end user is and where the system will run. A GB300 NVL72 rack draws about 132–142 kW per OEM figures, weighs around 1.5–1.6 tonnes and needs a coolant distribution unit and facility water loop. Suppliers therefore can't produce a meaningful quotation, or get an order past end-user checks, without the facility answers. Arriving with all three sets turns the first meeting into a design discussion rather than a questionnaire. This checklist is for enterprises, research institutions and data-centre operators.

Which GB300 are you actually buying?

Settle this first, because it changes every other document. A DGX Station GB300 is one GPU in a 1,600 W deskside tower with closed-loop cooling. An HGX B300 server holds 8 GPUs at roughly 14 kW for NVIDIA's DGX B300 and fits standard data-centre racks. A GB300 NVL72 is a 48U rack of 72 GPUs and 36 Grace CPUs in one NVLink domain. NVIDIA DGX GB300 is NVIDIA's own branded NVL72, sold with its software stack and three years of business-standard support. If you're not sure which tier fits, read why an AI data centre needs more than powerful GPUs and what the GB300 NVL72 delivers.

What goes in the readiness pack?

Source: HPE QuickSpecs for GB300 NVL72 (v3, 8 Sep 2026); Dell PowerEdge XE9712 spec sheet (Apr 2026); Supermicro, GIGABYTE, Lenovo and Vertiv GB300 NVL72 pages (read 9 Nov 2026); NVIDIA DGX GB300 and DGX B300 pages; BIS diversion guidance (13 May 2025); IRAS GST Guide on Imports (30 Jan 2026). Facts as of 9 Nov 2026.

How much power and cooling should you document?

OEMs quote about 132 kW nominal (HPE, Supermicro) to "up to 142 kW" (Vertiv). HPE gives an electrical design peak of about 155 kW and suggests provisioning busways for 192 kW. It specifies 5-wire IEC 60309 60 A whips at 400 V or 480 V. Cooling needs a coolant distribution unit: in-rack units of roughly 121–250 kW, or in-row units of 1.3–1.8 MW serving up to eight racks, depending on vendor. Only Lenovo publishes a facility water range (18–45 °C), so ask your chosen OEM for its own figure rather than assuming one. GIGABYTE requires the loop to meet ASHRAE liquid-cooling water-quality values. Singapore now has a standard for this: SS 726:2026, Liquid Cooling in Tropical Data Centres, published on 27 August 2026. It's worth asking your facility whether its design follows it. For rack power monitoring in smaller deployments, see monitoring overloaded server racks.

What about floor loading and the delivery route?

HPE quotes about 3,300 lb (roughly 1,500 kg) for a loaded rack and Dell 1,590 kg wet. Spread over the rack footprint, that is roughly 1,770–2,340 kg per square metre (about 17–23 kN/m²). That is our CALC (illustrative) from the OEMs' weights and footprints; the OEMs don't publish it. Point loads at the castors and the route from loading bay to hall matter as much as the hall floor, so have a structural engineer check both. Racks of 2,236–2,495 mm also won't fit every door or lift.

What network information helps the quotation?

State whether you plan NVIDIA Quantum-X800 InfiniBand or Spectrum-X Ethernet for the compute fabric. List the storage, in-band and out-of-band management networks, and the optics and cabling you already have. Networking can add a great deal to a quotation after the first draft if it isn't scoped up front. Our posts on the hidden cost of AI networking and InfiniBand vs Ethernet explain the choices.

A supplier can price hardware without your facility details. It can't promise that the hardware will run in your hall.

What compliance documents belong in the pack?

The same end-user information any GB300 buyer provides, plus one item that matters more at data-centre scale: a written attestation from the facility. The Bureau of Industry and Security's 13 May 2025 guidance recommends that sellers obtain one, confirming the end user is authorised to operate at the site and that the facility can support the servers. It also advises extra scrutiny for data centres capable of more than 10 MW. If you are a data-centre operator renting capacity to others, expect questions about how you screen your customers. Field definitions are in our KYC and EUC explainer, site scenarios in why suppliers need your installation location, and common errors in seven documentation mistakes. For a general vendor-side view, see what IT vendors wish customers knew before a quote.

This article is general information, not legal advice; confirm requirements for your situation with your legal or trade-compliance adviser.

Buying in Singapore

SourceIT does not list GB300 NVL72 racks. For data-centre projects, ask us to source through our partners; we will confirm availability, lead time and facility requirements rather than assume stock. Send us the readiness pack and we'll review it, check it against the OEM's requirements and coordinate questions with the manufacturer or distributor. For smaller GPU deployments we list price-on-request GPU servers such as the Lenovo ThinkSystem SR780a V3 and DGX Station GB300 systems such as the HP ZGX Fury G1n and Dell Pro Max with GB300.

Rack power in our store suits those, not an NVL72. The largest rack PDUs we list are rated at about 22 kW, such as the Eaton G4 Managed 3-phase 22 kW PDU at S$3,502.80 (listed 9 Nov 2026); prices change; ask for a current quotation. Use Request for Quotation on the product page, call (65) 6978 3502, email Sales@sourceit.com.sg or use our contact page.

Frequently asked questions

Can we get a GB300 NVL72 quotation without a confirmed data centre? You can get an indicative one, but suppliers generally need confirmed power, cooling and site details before a firm quote or order.

How much power should we reserve for one NVL72 rack? OEMs quote about 132–142 kW per rack, and HPE suggests provisioning busways for about 192 kW peak. Confirm with your chosen OEM.

Does a GB300 NVL72 need facility water? Generally yes, through a coolant distribution unit. Supermicro also offers a liquid-to-air sidecar that it says needs no facility water.

Who should sign the data-centre attestation? Someone at the facility with authority to confirm your right to operate there and its power, cooling and space. Check the supplier's required wording.

Are lead times published for GB300 NVL72? We found no published OEM or NVIDIA lead time. Supply is tight, so a complete pack helps your order move when allocation is available.