enterprise

EK-Pro CPU WB sTR - Nickel + Acetal

Product EAN: 3831109895245

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.

Compatibility: AMD Socket sTRX4 (Socket SP3r3), AMD Socket TR4 (Socket SP3r2), AMD Socket SP3, AMD Socket sTR5, AMD Socket SP6
Platform: AMD

Overview

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 for AMD EPYC and Threadripper

Key Engineering

Three design decisions worth calling out

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 data

Full datasheet

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

All figures measured at supplier level. Third-party independent measurement reports are available on request under NDA.

Technical drawing

Top & side view, in millimetres

Envelope drawing for chassis-integration work. All measurements in mm. Use this to verify clearance to adjacent components and chassis walls before specifying.

These drawings represent copyrighted material of LM TEK® and they are meant only for your personal use. Drawing supplied by EK-Pro. A CAD step file of the full block assembly is available to partners on request.

Compatibility

Socket Compatibility

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

Contact Team

In the Box

Shipped contents

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

Full-IHS Liquid Cooling for AMD EPYC and Threadripper

Combine with EK-Pro manifolds and QDC kits for a complete, easily serviceable cooling loop across multi-socket AMD workstation and server platforms.

Talk to an engineer Back to family

Engineering-grade cooling, component by component.

Validated kits for specific large tower chassis.

Bespoke solutions for unique requirements.

RM-4U8G