---
product_id: 742553908
title: "Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade"
brand: "crucial(クルーシャル)"
price: "€ 0.75"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.cy/products/742553908-crucial-4gb-ddr4-2666mt-s-pc4-21300-cl19-udimm-288pin
store_origin: CY
region: Cyprus
---

# 2666 MT/s blazing speed 4GB capacity for smooth multitasking 288-pin UDIMM for easy desktop upgrade Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade

**Brand:** crucial(クルーシャル)
**Price:** € 0.75
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Upgrade your desktop, upgrade your hustle!

## Quick Answers

- **What is this?** Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade by crucial(クルーシャル)
- **How much does it cost?** € 0.75 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/742553908-crucial-4gb-ddr4-2666mt-s-pc4-21300-cl19-udimm-288pin)

## Best For

- crucial(クルーシャル) enthusiasts

## Why This Product

- Trusted crucial(クルーシャル) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blazing DDR4 Speed:** Experience seamless performance with 2666 MT/s memory clock speed, perfect for demanding apps and multitasking.
- • **Plug & Play Upgrade:** 288-pin UDIMM design guarantees hassle-free installation—boost your PC’s memory in minutes.
- • **Reliable Brand Power:** Crucial’s trusted DDR4 technology ensures stability and longevity for your professional workflow.
- • **Compact & Lightweight:** At just 19g and slim 13.3cm length, this module fits effortlessly into your desktop setup without bulk.
- • **Future-Proof Your Rig:** DDR4 standard with PC4-21300 compatibility keeps your system ready for next-gen software demands.

## Overview

The Crucial 4GB DDR4 2666MT/s UDIMM desktop memory module offers a reliable, high-speed 4GB capacity with a 288-pin form factor, designed for easy installation and enhanced multitasking performance in professional desktop environments.

## Description

Crucial (Micron) Desktop PC Memory PC4-21300 (DDR4-2666) 1 x 4GB 288pin CT4G4DFS8266

## Features

- Desktop PC Memory
- Standard: PC4-21300 (DDR4-2666)
- Capacity: 4GB
- Type: 288Pin DDR4-SDRAM Unbuffered DIMM

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Crucial(クルーシャル) |
| Manufacturer | Crucial |
| Series | DDR4 2666 MT/s UDIMM DRAM |
| Product Dimensions | 13.34 x 0.08 x 3.12 cm; 19 g |
| Item model number | CT4G4DFS8266 |
| Is Discontinued By Manufacturer | No |
| Color | multicolor |
| Form Factor | DIMM |
| Item dimensions W x H | 13.3 x 0.1 x 3.1 cm |
| RAM Size | 4 GB |
| Memory Technology | DDR4 |
| Computer Memory Type | SDRAM |
| Memory Clock Speed | 2666 MHz |
| Voltage | 12 Volts |
| Are Batteries Included | No |
| Lithium Battery Energy Content | 2 Kilowatt Hours |
| Lithium Battery Packaging | Batteries packed with equipment |
| Lithium Battery Weight | 2 g |
| Item Weight | 19 g |

## Product Details

- **Brand:** Crucial(クルーシャル)
- **Computer Memory Size:** 4 GB
- **RAM Memory Technology:** DDR4
- **Memory Speed:** 2666 MHz
- **Compatible Devices:** Desktop

## Images

![Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade - Image 1](https://m.media-amazon.com/images/I/61LjnKSImPL.jpg)
![Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade - Image 2](https://m.media-amazon.com/images/I/71oGu+waCrL.jpg)
![Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade - Image 3](https://m.media-amazon.com/images/I/61wWaMkDsML.jpg)
![Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade - Image 4](https://m.media-amazon.com/images/I/61iU2ecELML.jpg)
![Crucial 4GB DDR4 2666MT/s(PC4-21300) CL19 UDIMM 288pin CT4G4DFS8266 Desktop Memory Upgrade - Image 5](https://m.media-amazon.com/images/I/718FLGAVbpL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 100
*by 森***政 on May 7, 2025*

PCがサクサク動作し、快適になった

### ⭐⭐⭐⭐⭐ 安定的に作動中
*by 枯***爺 on April 30, 2025*

早速取り付けて安定して作動しています。サムソンの8GBと共に使用していますが､問題なく作動しております。

### ⭐⭐⭐⭐ 当方環境では問題なし
*by ぇ***ぷ on May 7, 2025*

HPのOMEN25L 12thCore i7機で導入1年過ぎましたが特に問題はありません。生成AI動画などだとVRAM以外にも限界まで使いますがコケたことはありません。

## Frequently Bought Together

- Crucial RAM 4GB DDR4 2666MHz CL19 Desktop Memory CT4G4DFS8266
- ARESGAME AGV Series 500W Power Supply, 80 Plus Bronze Certified, Non Modular Power Supply, 5 Year Warranty

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**Shop now:** [https://www.desertcart.com.cy/products/742553908-crucial-4gb-ddr4-2666mt-s-pc4-21300-cl19-udimm-288pin](https://www.desertcart.com.cy/products/742553908-crucial-4gb-ddr4-2666mt-s-pc4-21300-cl19-udimm-288pin)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-21*