---
product_id: 162656463
title: "CentIoT - Copper TOP Nozzle Water Cooling Block 40x40x12mm Liquid Cooler Waterblock Radiator for GPU CPU Cooling heatsink"
brand: "centiot"
price: "$4.45"
currency: USD
in_stock: false
reviews_count: 1
url: https://www.desertcart.us/products/162656463-centiot-copper-top-nozzle-water-cooling-block-40x40x12mm-liquid-cooler
store_origin: US
region: United States of America
---

# Top nozzle design for optimized liquid flow 6mm precision internal flow channel 40x40x12mm compact cooling block CentIoT - Copper TOP Nozzle Water Cooling Block 40x40x12mm Liquid Cooler Waterblock Radiator for GPU CPU Cooling heatsink

**Brand:** centiot
**Price:** $4.45
**Availability:** ❌ Out of Stock

## Summary

> 💧 Stay cool, stay ahead — liquid cooling redefined.

## Quick Answers

- **What is this?** CentIoT - Copper TOP Nozzle Water Cooling Block 40x40x12mm Liquid Cooler Waterblock Radiator for GPU CPU Cooling heatsink by centiot
- **How much does it cost?** $4.45 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/162656463-centiot-copper-top-nozzle-water-cooling-block-40x40x12mm-liquid-cooler)

## Best For

- centiot enthusiasts

## Why This Product

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

## Key Features

- • **Compact Yet Powerful:** 40x40x12mm size fits seamlessly into tight builds without compromising cooling efficiency.
- • **Leak-Proof Engineering:** Industry-leading soldering integration keeps leakage below 5 x 10⁻⁶ mbar.l/s, ensuring reliability.
- • **Universal Compatibility:** Supports 7-8mm inner diameter water cooling pipes, perfect for GPU, CPU, and industrial semiconductor cooling.
- • **Optimized Top Nozzle Design:** Perpendicular water inlet/outlet maximizes liquid flow and reduces turbulence for peak performance.
- • **Precision Copper Craftsmanship:** Premium copper material ensures superior heat dissipation and durability.

## Overview

The CentIoT Copper TOP Nozzle Water Cooling Block is a precision-engineered 40x40x12mm liquid cooler crafted from premium copper. Designed for GPU, CPU, and semiconductor cooling, it features a top-positioned nozzle for optimized liquid flow through a 6mm internal channel. With integrated soldering ensuring ultra-low leakage rates and compatibility with 7-8mm water cooling pipes, this compact heatsink delivers reliable, high-performance thermal management for professional-grade desktop systems.

## Description

Suitable for computer CPU cooling,GPU,VGA,CHIP,industrial frequency conversion driver, laser head cooling, air conditioning evaporator and industrial control cabinet cooling. Heat transfer mode: Recuperative heat exchangerSpecification: Top export water Water flow channel: double U channel Size: 40*40*10mm/1.57*1.57*0.39inch Outer diameter of water mouth: 8mm/0.31inch Fitting hose: inner diameter of 7-8mm/0.28-0.31inch Process: vacuum brazing Surface treatment: polishing Weight:125g

## Features

- Suitable for cooling graphics GPU, motherboard Northbridge Southbridge CPU, graphics; semiconductor cooling piece, industrial cooling, etc
- Size: 40*40*10mm / 1.57 * 1.57 * 0.39inch
- Material: Copper; Nozzle Direction: Top (Perpendicular to Base); Water Inlet and Outlet Positioned at the top
- The diameter of Internal flow channel is 6mm round hole channel; Integration of parts soldering; The leakage rate of parts is less than 5 x 10-6mbar.l/s
- Nozzle: 8 - 9.5MM ,Can use for Inner dia 7mm-8mm water cooling pipe

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | CentIoT |
| Power Connector Type | 3-Pin |
| Wattage | 3 Watts |
| Cooling Method | Liquid |
| Compatible Devices | Desktop |
| Material | Copper |
| Manufacturer | CentIoT, 69, First Cross, Nehru Nagar, Karaikal, Puducherry – 609605, Contact@centiot.com | www.centiot.com/support |
| Number of Items | 1 |
| Colour | Copper |
| Item Height | 2 Millimeters |
| Item Width | 40 Millimeters |
| Product Dimensions | 4 x 4 x 0.2 cm; 100 g |
| Item model number | HC043-40MM-COPPER-TOP |
| Are Batteries Included | No |
| Manufacturer | CentIoT, 69, First Cross, Nehru Nagar, Karaikal, Puducherry – 609605 |
| Item Weight | 100 g |

## Product Details

- **Brand:** CentIoT
- **Power Connector Type:** 3-Pin
- **Wattage:** 3 Watts
- **Cooling Method:** Liquid
- **Compatible Devices:** Desktop

## Images

![CentIoT - Copper TOP Nozzle Water Cooling Block 40x40x12mm Liquid Cooler Waterblock Radiator for GPU CPU Cooling heatsink - Image 1](https://m.media-amazon.com/images/I/51Dc-7j4atL.jpg)

## Customer Reviews

### ⭐ Poor quality 😢 waste of money
*by A***I on 10 November 2023*

There's no water flow, i tried to blow air through it with a pump used to fill tyres at high pressure but still no air came out the other nozzle ,very poor quality,the replacement i got is worse than the original piece

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-07*