---
title: "EK-Pro CPU WB sTR Rack - Nickel + Acetal – enterprise"
description: "Server-grade water block designed for 1U chassis compatibility, specifically for AMD EPYC and AMD Ryzen Threadripper processors."
url: "https://www.lmtek.com/components/cpu-water-blocks/ek-pro-cpu-wb-str-rack-nickel-acetal"
locale: "en"
---

# EK-Pro CPU WB sTR Rack - Nickel + Acetal

_enterprise_

Server-grade water block designed for 1U chassis compatibility, specifically for AMD EPYC and AMD Ryzen Threadripper processors.

SKU: EK-Pro CPU WB sTR Rack - 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 | 3831109844076 |

## Technical datasheet

| Spec | Value |
| --- | --- |
| Dimensions (L x H x W) | 116.8 x 85.37 x 26.2 mm |
| Materials | Nickel-plated copper, POM, carbon steel |
| Mass | 0.461 kg |
| Ports | 2 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 |

## 1U-Compatible Cooling for AMD EPYC and Threadripper

The EK-Pro CPU WB sTR Rack - Nickel + Acetal is a server-grade water block designed for 1U chassis compatibility, specifically for AMD EPYC and AMD Ryzen Threadripper processors. Its compact design utilizes two G1/4"-threaded side ports for vertical space efficiency.

Featuring a dense micro-fin structure, it covers the entire CPU Integrated Heat Spreader (IHS) for improved cooling performance. Crafted with a CNC-machined POM Acetal top and a pure copper base with nickel electroplating, it ensures durability and efficient heat transfer. With a pre-assembled mounting mechanism, installation onto SocketTR4 mounting holes is seamless.

### Dense Micro-Fin Structure

Covers the entire CPU IHS surface area for uniform heat extraction across the full die footprint of AMD EPYC and Threadripper processors.

### 1U Chassis Compatible

Side-mounted G1/4" ports minimize vertical height, enabling installation in 1U rack chassis without compromising loop connectivity or flow.

### CNC-Machined Nickel-Plated Copper

Pure copper base with nickel electroplating ensures long-term corrosion resistance and thermal conductivity. CNC-machined POM Acetal top provides chemical and mechanical durability.

## Technical drawing

[Top & side view, in millimetres](https://cdn.sanity.io/images/5gtqpiph/production/2e2bb5a8fc74939aef467676526e9c539c5ac566-1600x1067.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/049dd8ae418cc1b5d9519886659827e7d1a3028b.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 both AMD EPYC and Ryzen Threadripper processor platforms in 1U server and rack-mount workstation chassis.

## In the box

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