---
product_id: 56455160
title: "40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack)"
brand: "kalolary"
price: "107.34 DT"
currency: TND
in_stock: true
reviews_count: 12
category: "Kalolary"
url: https://www.desertcart.tn/products/56455160-40-40mm-aluminum-water-cooling-block-for-liquid-water-cooler
store_origin: TN
region: Tunisia
---

# Leak rate <5x10⁻⁶ mbar.l/s ultra-sealed 40x40mm compact cooling block Vacuum aluminum brazing for durability 40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack)

**Brand:** kalolary
**Price:** 107.34 DT
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay cool, stay ahead — the ultimate liquid cooling upgrade your rig deserves!

## Quick Answers

- **What is this?** 40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack) by kalolary
- **How much does it cost?** 107.34 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/56455160-40-40mm-aluminum-water-cooling-block-for-liquid-water-cooler)

## Best For

- kalolary enthusiasts

## Why This Product

- Trusted kalolary brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultra-thin 0.5mm internal fins:** Maximizes heat dissipation efficiency for peak CPU performance
- • **Versatile multi-application use:** Perfect for CPU, industrial inverters, laser heads, and control cabinet cooling
- • **Advanced vacuum aluminum brazing:** Ensures unmatched structural integrity and thermal conductivity
- • **Precision-engineered compact design:** 40x40mm footprint fits seamlessly into any CPU cooling setup
- • **Industry-grade leak-proof technology:** Leak rate less than 5x10⁻⁶ mbar.l/s guarantees reliable, worry-free cooling

## Overview

This 40x40mm aluminum water cooling block features silver oxidation surface treatment and vacuum aluminum brazing for superior durability and heat transfer. With ultra-thin 0.5mm internal fins and an industry-leading leak rate below 5x10⁻⁶ mbar.l/s, it delivers efficient, reliable cooling for CPUs and industrial applications alike. Sold in a convenient 2-pack, it’s engineered for professionals demanding high performance and longevity.

## Description

Feature: -Size:40 (D) x 40 (W) x 12 (H) MM -Weight:35g Package included: 2 x CPU Water cooling

Review: Quality product - I was surprised how well made and packed these were. I expected an industrial part and it is obvious they are very well made and a high quality product. Very well worth the money.
Review: Great for my seawater cooled fridge unit - A fridge, sea water cooled

## Features

- √Surface treatment: silver oxidation
- √Processing: vacuum aluminum brazing
- √Internal flow channel extrusion forming,brazing parts into a whole
- √Internal fin thickness 0.5MM，Leak rate of less than 5X10-6 mbar.l/s parts
- √Applicable to computer CPU water, industrial inverter driver, laser head cooling, industrial control cabinet cooling

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078MK5GG9 |
| Are Batteries Included | No |
| Best Sellers Rank | 47,022 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 111 in Computer Heatsinks |
| Brand | Kalolary |
| Customer Reviews | 4.3 4.3 out of 5 stars (228) |
| Date First Available | 25 Dec. 2017 |
| Guaranteed software updates until | unknown |
| Item Weight | 9.07 g |
| Item model number | 8541602101 |
| Manufacturer | Kalolary |
| Processor Socket | Universal |
| Product Dimensions | 4 x 4 x 1.2 cm; 9.07 g |

## Product Details

- **Brand:** Kalolary
- **Cooler heat sink material:** Aluminium
- **Cooler heatsink compatibility:** Aluminum
- **Item weight:** 0.02 Pounds
- **Mounting type:** CPU Mount

## Images

![40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack) - Image 1](https://m.media-amazon.com/images/I/61+bXtMtCfL.jpg)
![40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack) - Image 2](https://m.media-amazon.com/images/I/61CvxqDOYdL.jpg)
![40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack) - Image 3](https://m.media-amazon.com/images/I/61QHTAac4lL.jpg)
![40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack) - Image 4](https://m.media-amazon.com/images/I/61QeMeMJmKL.jpg)
![40 * 40mm Aluminum Water Cooling Block for Liquid Water Cooler Silver Heat Sink System for CPU Radiator Heatsink (2 Pack) - Image 5](https://m.media-amazon.com/images/I/61j5df48hHL.jpg)

## Questions & Answers

**Q: what's inlet/outlet diamieters?**
A: Not sure on the specifics, but I tried them with a 13/10 water cooling setup and they were too small.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality product
*by D***Y on 11 June 2019*

I was surprised how well made and packed these were. I expected an industrial part and it is obvious they are very well made and a high quality product. Very well worth the money.

### ⭐⭐⭐⭐⭐ Great for my seawater cooled fridge unit
*by A***S on 18 September 2022*

A fridge, sea water cooled

### ⭐⭐⭐⭐⭐ As described
*by D***N on 6 June 2022*

Exelent Just what I needed, fast delivery

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**Shop now:** [https://www.desertcart.tn/products/56455160-40-40mm-aluminum-water-cooling-block-for-liquid-water-cooler](https://www.desertcart.tn/products/56455160-40-40mm-aluminum-water-cooling-block-for-liquid-water-cooler)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-26*