NVIDIA H20 · T-HS202322
NVIDIA H20 GPU + NVSwitch Liquid Cooling Assembly for Australia
ToneCooling Australia supplies a complete liquid cooling assembly for 8× NVIDIA H20 GPUs and 4× NVSwitch devices on a single baseboard — model T-HS202322, validated to 6.344 kW total heat load, pure water coolant. Design, engineering and manufacturing at our IATF 16949-aligned facility in Huizhou; customer engineering support from Carlton, Victoria.
ToneCooling Australia manufactures a complete direct-to-chip liquid cooling assembly for 8× NVIDIA H20 GPUs and 4× NVSwitch devices — validated to 6.344 kW total heat load at 45°C inlet with pure water coolant. Manufacturing is in Huizhou, Guangdong, China.
Validated specifications
| Supported devices | H20 GPU × 8 + NVSwitch × 4 |
|---|---|
| Total design heat load | 700 W × 8 + 186 W × 4 = 6.344 kW |
| Cold plate material | Copper |
| Joining process | Confirmed at quotation (DFM review) |
| Coolant / medium | Pure water |
| Feed liquid temperature | 45°C inlet |
| Maximum component temperature | ≤80°C |
| Rated flow rate | 10 LPM |
| Maximum pressure drop | 40 kPa |
| Maximum working pressure | 1 MPa |
| Overall dimensions | 409.18 × 331 × 139.61 mm |
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Frequently asked questions
Do you supply liquid cooling for NVIDIA H20 servers?
Yes. ToneCooling Australia supplies a complete direct-to-chip liquid cooling assembly (model T-HS202322) covering 8× NVIDIA H20 GPUs and 4× NVSwitch devices on a single baseboard.
Is this a bare cold plate or a complete assembly?
This is a complete, ready-to-install assembly — copper GPU and NVSwitch cold plates, integrated hose assemblies, and color-coded quick-disconnect couplings, not a single bare plate.
What heat load and flow rate is the H20 assembly validated for?
Validated total design heat load is 6.344 kW (700W x8 GPU + 186W x4 NVSwitch) using pure water coolant at 45°C inlet, rated flow rate 10 LPM, maximum pressure drop 40 kPa.
Can the design be customised?
Yes. Port locations, mounting pattern, dimensions and surface finish are customised from your drawings, with CFD validating the change before tooling.
What is the MOQ and lead time?
Prototype MOQ is 5 pieces with a typical 7-15 business day lead time from approved drawing and purchase order; production lead time is confirmed per volume.
Where is this cold plate manufactured?
Manufacturing is performed at the ToneCooling facility in Huizhou, Guangdong, China. ToneCooling Australia Pty Ltd (Carlton, VIC) is the AU RFQ and engineering-coordination entity and does not manufacture.
Request an H20 assembly quote
Send your baseboard drawing, CDU details and flow/pressure-drop limits. Our Carlton team responds with a DFM review and quotation.
Request a Quote