---
title: "EK-Pro CPU WB sTR - Nickel + Acetal – enterprise"
description: "Server-grade water block for AMD EPYC and Ryzen Threadripper processors covering the entire heat spreader, with three G1/4\" ports for workstations and server racks."
url: "https://www.lmtek.com/components/cpu-water-blocks/cpu-wb-str"
locale: "en"
---

# EK-Pro CPU WB sTR - Nickel + Acetal

_enterprise_

Server-grade water block for AMD EPYC and Ryzen Threadripper processors covering the entire heat spreader, with three G1/4" ports for workstations and server racks.

SKU: EK-Pro CPU WB sTR - Nickel + Acetal

## Specifications

| Spec | Value |
| --- | --- |
| Compatibility | AMD Socket sTRX4 (Socket SP3r3), AMD Socket TR4 (Socket SP3r2), AMD Socket SP3, AMD Socket sTR5, AMD Socket SP6 |
| Platform | AMD |
| EAN | 3831109895245 |

## Technical datasheet

| Spec | Value |
| --- | --- |
| Dimensions (L x H x W) | 116.8 x 78 x 22.2 mm |
| Materials | Nickel-plated copper, POM, stainless steel |
| Mass | 0.558 kg |
| Ports | 3 x G1/4" |
| Mounting method | 2.5 mm Allen key |
| Working pressure | 2500 Pa |
| Maximal working pressure | 30000 Pa in loops containing an EK-Pro Pump Reservoir Manifold, otherwise 75000 Pa |
| Operating temperature range | 5 – 60 °C |

## Full-IHS Coverage for AMD EPYC and Threadripper

The EK-Pro CPU WB sTR - Nickel + Acetal is a server-grade water block designed for AMD EPYC and Ryzen Threadripper processors, offering three G1/4" threaded ports. It covers the entire integrated heat spreader (IHS), enhancing cooling with a dense micro-fin structure.

Crafted with CNC-machined POM Acetal and laser-cut stainless steel, it features a pure copper base with nickel electroplating. Its pre-assembled mounting mechanism ensures easy and error-free installation on SocketTR4 and AMD's server-type Socket SP3 motherboards. Ideal for desktop PCs, workstations, and server racks.

### Full IHS coverage

The entire IHS of HEDT AMD® EPYC™ and AMD® Ryzen Threadripper processors covered.

### Precisely machined copper base

Purest copper available on the market, treated with nickel electroplating.

### Pre-assembled mounting mechanism

Error-proof mounting mechanism that is directly installed onto the SocketTR4 mounting holes.

### Dense Micro-Fin Full-IHS Coverage

Covers the entire integrated heat spreader surface to maximize thermal contact area, ensuring even heat extraction across all chiplets of multi-die AMD processors.

### Pre-Assembled Error-Preventing Mount

The pre-assembled mounting mechanism aligns directly with SocketTR4 and SP3 mounting holes for tool-guided, error-free installation without risk of uneven clamping force.

### Nickel-Plated Copper + Stainless Steel

Pure copper base with nickel electroplating combined with laser-cut stainless steel components ensures long-term reliability in continuously operating server and workstation environments.

## Technical drawing

[Dimensional drawing](https://cdn.sanity.io/images/5gtqpiph/production/511094aa121152e8bc7344b2dfda5c9c1498191f-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/340fbb00a8d5b0daaa0d242a58cb50f362d79b17.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.

## Socket Compatibility

Compatible with AMD Socket sTRX4 (SP3r3), TR4 (SP3r2), SP3, sTR5, and SP6. Suitable for desktop PCs, workstations, and taller server rack systems.

## In the box

- 1× EK-Pro CPU WB sTR - Nickel + Acetal water block
- 1× Pre-assembled SocketTR4/SP3 mounting hardware
- 1× Installation manual