H200 liquid cooling from ToneCooling is a standard T2 copper cold plate set, part number TC-BZP-H200-01A, for H200 (SXM5) 8-GPU + NVSwitch boards. It handles 8 × 700 W GPU plus 2 × 134 W + 2 × 156 W NVSwitch loads at a 38 °C pure-water inlet and 8.0 L/min, keeping the plate surface below 65 °C.
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H200 Cold Plate Specifications (TC-BZP-H200-01A, Rev B)
The H200 cold plate set is rated for 8 × 700 W + 2 × 134 W + 2 × 156 W, which is 6,180 W per 8-GPU board (calculated), at 38 °C inlet and 8.0 L/min of pure water. Flow resistance is 18.5 kPa (±20%) and maximum operating pressure is 0.8 MPa.
| Parameter | Value |
|---|---|
| Part number | TC-BZP-H200-01A (standard product) |
| Platform | H200 (SXM5) 8-GPU + NVSwitch boards |
| Heat dissipation (W) | 8 × 700 W GPU + 2 × 134 W + 2 × 156 W NVSwitch |
| Coolant | Pure water |
| Feed liquid (°C, L/min) | 38 °C inlet, 8.0 L/min |
| Flow resistance (kPa) | 18.5 kPa (±20%) |
| Max operating pressure (MPa) | 0.8 MPa |
| Cold-plate surface temperature (°C) | < 65 °C at the reference operating point |
| Thermal resistance | CFD-validated per project |
| Material | T2 copper |
| Joining | Continuous nitrogen-protection brazing (tunnel furnace) |
| GPU plate dimensions (mm) | 151 × 78.2 × 43.14 mm |
| NVSwitch plate dimensions (mm) | 80 × 64.3 × 7.6 mm |
| Connector | Quick disconnect, specified per project |
| Leak test | 100% tested: helium ≤ 1 × 10−9 mbar·L/s or pressure test, criteria per project |
Source: ToneCooling datasheet TC-BZP-H200-01A, Rev B (2026-10). Stated figures are the reference operating point for this standard set; final values are confirmed against your platform and system-level boundary conditions.
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What Is Included in the H200 Liquid Cooling Set?
The set covers every hot device on an H200 8-GPU board: eight GPU cold plates and NVSwitch cold plates for the four NVSwitch heat loads (2 × 134 W + 2 × 156 W). Connectors are quick disconnects chosen per project, so the set can plug into your existing manifold or a manifold we build to your drawing.
How Should You Size the Coolant Loop for H200 Liquid Cooling?
Start from the datasheet reference point: 38 °C pure-water inlet, 8.0 L/min feed flow and 18.5 kPa (±20%) flow resistance, with the loop rated to 0.8 MPa. Your CDU or facility loop must deliver that flow at that pressure drop for every board on the rack, plus the losses of manifolds, hoses and quick disconnects.
- Heat to remove per board: 6,180 W (calculated from 8 × 700 W + 2 × 134 W + 2 × 156 W).
- Inlet temperature: the 38 °C rating suits warm-water loops; other inlet temperatures and coolants are evaluated by CFD for your project.
- CDU: ToneCooling also supplies the coolant distribution unit (CDU), so cold plates and CDU can be quoted as one package or matched to the CDU you already use.
Testing, Quality and Documentation
- Made in our own manufacturing facility in Huizhou, China, under an IATF 16949-aligned quality system.
- 100% leak testing: helium ≤ 1 × 10−9 mbar·L/s or pressure test, with acceptance criteria per project.
- Proof and burst pressure tested per project requirement; thermal cycling per IEC 60068-2-14; ultrasonic C-scan of bonded joints per ASTM E2375.
- Thermal resistance, leak and flatness test reports are available on request; RoHS / REACH documentation on request.
What Should You Send With an H200 Cold Plate RFQ?
Send the board type (H200 SXM5 8-GPU + NVSwitch), quantity, coolant, inlet temperature, available flow per board, allowed pressure drop, connector type and any manifold or chassis drawing. Custom samples are available from a single piece. An engineer reviews every RFQ and replies by email with next steps. For a full input list, see the H200 cold plate RFQ checklist.
Need the STEP model or test report first? Use the form below.
Frequently Asked Questions About H200 Liquid Cooling
Is the TC-BZP-H200-01A set compatible with HGX H200 8-GPU boards?
It is designed for H200 (SXM5) 8-GPU + NVSwitch boards and covers both the GPU and NVSwitch positions. Send your board and tray drawing with the RFQ and an engineer confirms mechanical fit and port positions before you order.
What flow rate and pressure drop should I design the CDU loop for?
Design for the datasheet reference point: 8.0 L/min of pure water at a 38 °C inlet, with 18.5 kPa (±20%) flow resistance and a 0.8 MPa maximum operating pressure. Add the pressure losses of your manifolds, hoses and quick disconnects.
How big is the H200 cold plate?
Each GPU cold plate measures 151 × 78.2 × 43.14 mm and each NVSwitch cold plate measures 80 × 64.3 × 7.6 mm. Both are T2 copper, joined by continuous nitrogen-protection brazing.
How much does H200 liquid cooling cost?
The H200 cold plate set is quoted per project, because quantity, connectors, manifold scope and test documentation change the cost. Send an RFQ with your requirements and an engineer replies by email with a quotation.
Can I order a single H200 sample, and what is the lead time?
Yes. Custom samples are available from a single piece and are typically ready in 4–6 weeks, including design review. Production lead time is normally 6–8 weeks and is confirmed in the quotation.
Is every H200 cold plate leak tested, and can I get test reports?
Yes. Every set is 100% leak tested with helium (≤ 1 × 10−9 mbar·L/s) or a pressure test, with criteria per project. Thermal resistance, leak and flatness reports are available on request, and the H200 datasheet downloads without a form.
Other Standard GPU Cold Plate Kits
Compare the H200 set with our GB300 4G+2C cold plate kit, the GB200 cold plate kit and the H100 8-GPU cold plate assembly, or browse all liquid cold plates, including custom designs.
Last updated: 2026-10-19 · ToneCooling Engineering Team. NVIDIA and H200 are trademarks of NVIDIA Corporation; no affiliation or endorsement is implied.
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