---
title: "EK-Pro GPU Zotac RTX 5090 Nickel + Inox – Pro workstation"
url: "https://www.lmtek.com/components/gpu-water-blocks/zotac-rtx-5090"
locale: "en"
---

# EK-Pro GPU Zotac RTX 5090 Nickel + Inox

_Pro workstation_

SKU: EK-Pro GPU Zotac RTX 5090 Nickel + Inox

## Specifications

| Spec | Value |
| --- | --- |
| Compatibility | ZOTAC Gaming GeForce RTX 5090 Solid \n ZOTAC GAMING GeForce RTX™ 5090 SOLID OC |
| Form | 1U RACK |
| EAN | 3831129901421 |

## Technical datasheet

| Spec | Value |
| --- | --- |
| Compatibility | ZOTAC Gaming GeForce RTX 5090 Solid \n ZOTAC GAMING GeForce RTX™ 5090 SOLID OC |
| Form factor | Full-height workstation (PCIe, 1-slot) |
| Dimensions | 264 × 124 × 20 mm |
| Mass | 1.482 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 | 3831129901421 |

## Overview

The EK-Pro GPU Zotac RTX 5090 Nickel + Inox is a high-performance water block designed specifically for the ZOTAC GAMING GeForce RTX™ 5090 SOLID OC graphics card. It cools the GPU die, VRAM, and VRM efficiently with low hydraulic flow restriction, making it compatible with modest pump setups in compact workstation builds.

The block occupies a single PCIe slot width – a deliberate design decision for workstations where adjacent slot clearance is a constraint. A nickel-plated copper base contacts the die and VRAM directly, with a stainless-steel top and POM Acetal side-terminal block. Pre-installed brass standoffs on the retention backplate simplify installation to a direct replacement of the stock air cooler.

Integration with EK-Pro QDC kits and manifolds is built in via two G1/4″ ports on the terminal block, supporting high compute-density applications where the cooling loop services multiple cards from a single manifold.

### Single-slot profile

Occupies just one PCIe slot width – preserves adjacent slot clearance in dense multi-GPU workstation builds.

### Full-cover cooling

GPU die, VRAM, and VRM covered under a single cooling engine with low hydraulic flow restriction.

### Pump-agnostic

Low flow restriction means the block operates correctly with weaker water pumps, widening loop compatibility.

### Nickel + stainless construction

Nickel-plated copper base and stainless-steel top for corrosion resistance and long-term loop chemistry stability.

### Retention backplate

Backplate adds PCB rigidity and provides passive cooling to the VRM area on the reverse of the board.

### G1/4″ side terminal

POM-machined terminal block with two G1/4″ ports – compatible with EK-Pro QDC kits and manifolds.

### Single-slot workstation profile

The block is machined to a 20 mm depth and single PCIe slot width, making it the correct choice for compact workstation chassis where a two-slot block would obstruct an adjacent PCIe device. Despite the reduced depth, full-cover contact across GPU die, VRAM, and VRM is maintained.

### QDC kit and manifold compatible

Two G1/4″ ports on the side terminal block provide direct integration with EK-Pro Quick Disconnect kits and the full manifold range. This allows the card to be removed from a populated loop without draining – a meaningful operational advantage in workstations serviced in the field.

### 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. These figures are published at the supplier level and are consistent across the GPU water-block family.

## Technical drawing

[Top & side view, in millimetres](https://cdn.sanity.io/images/5gtqpiph/production/23648451b9e602a299d2c6459f33fe62475b55bf-1600x1067.png)

## 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/fed54bf18e8f0ea2bf77df8a3aa15a1abbb40cb4.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.

## ZOTAC Gaming GeForce RTX 5090 Solid

ZOTAC Gaming GeForce RTX 5090 Solid


ZOTAC GAMING GeForce RTX™ 5090 SOLID OC

## In the box

- EK-Pro GPU Zotac RTX 5090 workstation and server-grade water block
- Mounting mechanism with screw-in brass standoffs
- Necessary mounting screws, nuts, and washers
- Thermal Interface Material