---
title: "EK-Pro GPU WB H200 NVL Nickel + Inox – Datacentre"
url: "https://www.lmtek.com/components/gpu-water-blocks/h200-nvl"
locale: "en"
---

# EK-Pro GPU WB H200 NVL Nickel + Inox

_Datacentre_

SKU: EK-Pro GPU WB H200 NVL Nickel + Inox

## Compatible LM TEK platforms

- [LM TEK 4U8GPU10KW](/ai-hpc-servers/4u8gpu10kw)

## Specifications

| Spec | Value |
| --- | --- |
| Compatibility | NVIDIA® H200 NVL Tensor Core |
| Form | rack |
| EAN | 3831129901704 |

## Technical datasheet

| Spec | Value |
| --- | --- |
| Compatibility | NVIDIA® H200 NVL Tensor Core |
| Form factor | FHFW rack (single PCIe slot) |
| Dimensions | 315 × 127 × 22 mm |
| Mass | 1.298 kg |
| Ports | 2 × G1/4″ |
| Base material | Nickel-plated copper |
| Top material | Stainless steel |
| Terminal | POM Acetal |
| Seals | EPDM O-rings |
| Mounting method | Backplate |
| Working pressure | 2 500 Pa |
| Max pressure (with EK-Pro PRM) | 30 000 Pa |
| Max pressure (standalone) | 75 000 Pa |
| Operating temperature | 5 – 60 °C |
| EAN | 3831129901704 |

## A full-cover block for a best-in-class HPC rack

The EK-Pro GPU WB H200 NVL Nickel + Inox is a water block designed for the NVIDIA® H200 NVL Tensor Core PCIe datacentre GPU. The block occupies a single PCIe slot and uses a rack-style terminal to maintain compatibility with FHFW server chassis.

The dual-pass cooling engine covers the GPU die, HBM VRAM, and VRM under one block body. A POM-machined terminal block carries two G1/4″ ports for direct integration with EK-Pro QDC kits. The retention backplate provides structural rigidity against PCB flex under loop pressure and chassis vibration.

Construction is CNC-machined nickel-plated copper base and laser-cut stainless-steel top with pre-installed brass standoffs and EPDM O-ring sealing throughout.

### Single-slot profile

Occupies one PCIe slot width – maintains card density in populated FHFW server chassis.

### HBM VRAM coverage

Dual-pass cooling engine covers the GPU die, HBM VRAM stack, and VRM under one block body.

### FHFW server compatible

Rack-style terminal routes plumbing within the vertical envelope of a 1U or 2U FHFW chassis.

### Pump-agnostic

Low flow restriction maintains correct operation with weaker water pumps, widening loop compatibility.

### Retention backplate

Backplate provides structural rigidity against PCB flex under loop pressure and chassis vibration loading.

### QDC kit compatible

Two G1/4″ ports on the POM terminal block integrate directly with EK-Pro QDC kits.

### Dual-pass channel geometry

The dual-pass internal channel routes coolant across the full PCB footprint twice before exiting, increasing dwell time over the HBM VRAM stack and VRM zone. This is relevant for the H200 NVL where the HBM thermal load is spatially separated from the GPU die contact area.

### FHFW rack-style terminal

The rack-style terminal block routes the G1/4″ ports toward the chassis rear panel, keeping the coolant path within the vertical envelope of standard FHFW server chassis. Pre-installed brass standoffs and EPDM O-ring sealing are included.

### Pressure envelope

Working pressure is 2 500 Pa. Maximum rated pressure is 30 000 Pa in loops containing an EK-Pro Pump Reservoir Manifold, and 75 000 Pa in all other configurations. Figures are consistent across the GPU water-block family.

## Technical drawing

[H200 NVL technical drawing](https://cdn.sanity.io/images/5gtqpiph/production/6f77f63c315129c41828f45989ab14d9acd6132a-1600x1067.png)

## Fitting the block, start to finish

A single 11-minute procedure video covering the full installation of the EK-Pro GPU WB H200 NVL, from card preparation to leak testing. Filmed on the manufacturer reference board.

[Fitting the block, start to finish](https://www.youtube.com/watch?v=qeWbgtWf3xk)

Procedure shown on the NVIDIA® reference PCB. Important: Always work on an ESD-safe surface and disconnect all power before servicing your GPU. Take your time during installation and avoid applying excessive force to the PCB.

## Download resources

Product documentation for specification, integration, and installation is available below. Revision numbers are printed on page one of each file.

- [Installation manual](https://cdn.sanity.io/files/5gtqpiph/production/e4bee3ba38304c7e255654c2d6c2811c7ba2d52f.pdf) · Rev 1.0 · Torque sequence, TIM application maps, and the leak-test protocol. Read before first fitting.

A CAD STEP file of the full block assembly is available to partners on request – contact LM TEK engineering before specifying at fleet scale.

## In the box

- EK-Pro GPU WB H200 NVL – water block
- Retention backplate
- Mounting mechanism with screw-in brass standoffs
- Necessary mounting screws, nuts, and washers
- Thermal Interface Material