Liquid cold plate supplier · AI data centres · Australia & New Zealand

Liquid Cold Plates for AI Data Centres in Australia: GB300 & GB200 Kits and CDUs

ToneCooling Australia is a liquid cold plate supplier for AI data centre projects in Australia and New Zealand. We supply GB300 and GB200 cold plate kits with batch-tested data, H200 and H100 liquid cooling assemblies, rack manifolds and coolant distribution units, built at our own manufacturing facility in Huizhou and supported from Carlton, Victoria.

  • Australian entityToneCooling Australia Pty Ltd
  • Own factoryIATF 16949-aligned, Huizhou
  • ~1,000,000cold plates per year
  • 4–6 weekstypical sample lead time
ToneCooling GB300 4 GPU + 2 CPU liquid cold plate kit with copper cold plates and hoses
GB300 4G+2C cold plate kit, real product photo

Which AI server cold plate kits can I order with test data?

Two kits carry batch-tested datasheet values today. Both are compatible with NVIDIA GB300 / GB200-class platforms and are quoted with drawings, test records and sample options.

GB300 4G+2C cold plate kit assembly diagram

P0 · TC-BZP-GB300-01A

GB300 4G+2C cold plate kit

4 GPU + 2 CPU cold plates. Steady-state test, pure water, 20 March 2026.

GPU plateCPU plate
Heat load1,066.94 W485.46 W
Flow1.7 L/min0.7 L/min
Pressure drop12.06 kPa10.39 kPa
Thermal resistance0.0130–0.0133 °C/W0.0220 °C/W
ToneCooling GB200 cold plate kit with brazed T2 copper cold plate and hoses

P0 · TC-BZP-GB200-01A

GB200 cold plate kit

T2 copper, nitrogen-protected brazing + laser welding, 235 × 190 × 30 mm.

Datasheet value
Heat load1,200 + 1,200 + 300 W
Flow / pressure drop2.5 L/min / 35 ± 5 kPa
Working pressure0.6 MPa
Cold plate surfaceBelow 43 °C (25 ± 2 °C inlet)

Victoria, 2026 · AI cold plates: an advanced-engineering company in Victoria ordered several ToneCooling GB300-class liquid cold plate systems for liquid cooling evaluation.

New South Wales, 2026 · custom cold plate: a Sydney-region optical communications hardware developer engaged ToneCooling for a custom liquid cold plate programme for an optical receiver module: engineering design, three prototype units and thermal testing, with a six-week sample lead time.

Which AI platform are you cooling?

Pick your platform to see the kit, key datasheet values and the next step. All values are from ToneCooling Australia datasheets; site conditions are confirmed at quotation.

PlatformToneCooling kitHeat loadFlow / pressure dropDatasheetQuote
GB300 (4 GPU + 2 CPU)GB300 4G+2C kit1,066.94 W GPU · 485.46 W CPU1.7 / 0.7 L/min · 12.06 / 10.39 kPaPDFRFQ →
GB200GB200 kit2,700 W2.5 L/min · 35 ± 5 kPaPDFRFQ →
H200 (8 GPU + 4 NVSwitch)H200 assembly6.344 kW10 LPM · ≤ 40 kPaPDFRFQ →
H100 (8 GPU + 4 NVSwitch)H100 assembly6.344 kW9 LPM · ≤ 40 kPaPDFRFQ →
Other NVIDIA GPUs (H20, H800, L20, L40, A100/A800, RTX)GPU cold platesCustom build, per platformWith quotationRFQ →
Server CPUs (AMD EPYC SP3/SP5/SP6, Intel Xeon)CPU cold platesCustom build, per socketWith quotationRFQ →

Can one supplier cover the whole data centre liquid loop?

Yes. We supply the liquid side of the rack from the cold plate to heat rejection, engineered as one hydraulic system so flow and pressure drop are checked end to end.

  1. Cold platesGPU, CPU, NVSwitch
  2. Hoses & QDsDry-break couplings
  3. Rack manifoldsOCP DC-MHS pitch
  4. CDUsIn-rack and in-row
  5. Dry coolersClosed loop, low water use

Water use. Closed-loop direct-to-chip cooling with dry coolers keeps site water use low, a growing planning issue for Australian AI data centres. Read the water use guide →

New Zealand. AI data centre projects in New Zealand are supported by the same Carlton team, with the same datasheets and documentation. New Zealand projects →

Why do Australian AI data centre teams choose ToneCooling Australia?

Tested data, not brochure claims

GB300, GB200, H200 and H100 datasheets list heat load, flow, pressure drop and pressure ratings from our own tests.

Local company, local support

ToneCooling Australia Pty Ltd (ABN 96 653 174 040) contracts in Australia, with engineering support from Carlton, Victoria.

Our own manufacturing

Machining, joining and testing at our own IATF 16949-aligned facility in Huizhou, around 1,000,000 cold plates per year.

Checked before shipment

Helium leak test, ultrasonic C-scan and pressure tests on production units. Validation →

How do I start an AI cold plate project?

  1. 1 · Send your RFQPlatform, rack count, coolant, flow and pressure limits. RFQ checklist →
  2. 2 · DFM reviewOur engineers check fit, hydraulics and the test plan. DFM review →
  3. 3 · Evaluation samplesStandard kits for GB300, GB200, H200 and H100; custom builds for other platforms. Typically 4–6 weeks.
  4. 4 · ProductionBatch production with test records and documentation for each shipment.

Evaluation sample programme. GB300, GB200, H200 and H100 samples are standard kits supplied to their datasheets. Samples for all other platforms are custom-built to your platform, coolant, connectors and rack layout. Sample quantity and cost are confirmed in the quotation, with a typical lead time of 4–6 weeks. Ask about evaluation samples →

Frequently asked questions

Which AI server platforms do you support?

Standard GB300 and GB200-class kits and H200 and H100 GPU + NVSwitch assemblies with tested datasheet values, plus custom GPU and CPU cold plates for other NVIDIA, AMD EPYC and Intel Xeon platforms.

Can I download a datasheet?

Yes. GB300, GB200, H200 and H100 datasheets from ToneCooling Australia Pty Ltd can be downloaded from this page and the product pages.

Where are ToneCooling cold plates made?

At our own IATF 16949-aligned manufacturing facility in Huizhou, Guangdong, China. ToneCooling Australia Pty Ltd handles contracts, documentation and engineering support from Carlton, Victoria.

Do you supply CDUs and dry coolers as well as cold plates?

Yes. We supply in-rack and in-row CDUs, dry coolers and pump skids. For Australian and New Zealand projects, the electrical safety path for each CDU is confirmed at quotation.

Can I order evaluation samples?

Yes. GB300, GB200, H200 and H100 samples are standard kits supplied to their datasheets; all other platforms are custom-built to your platform, coolant and connectors. Sample quantity and cost are confirmed in the quotation, and the typical lead time is 4–6 weeks.

Send your AI cold plate or CDU brief

Platform, rack count, coolant, flow and pressure limits are enough to start. An engineer reviews every RFQ and replies by email with next steps.

By ToneCooling Engineering Team · Last updated: