---
product_id: 207705556
title: "Crucial RAM 8GB Kit (2x4GB) DDR4 2666 MHz CL19 Desktop Memory CT2K4G4DFS8266"
brand: "crucial"
price: "¥41997"
currency: JPY
in_stock: true
category: "Crucial"
url: https://www.desertcart.jp/products/207705556-crucial-ram-8gb-kit-2x4gb-ddr4-2666-mhz-cl19-desktop
store_origin: JP
region: Japan
---

# 2666 MHz blazing speed 1.2V low power efficiency 288-pin seamless compatibility Crucial RAM 8GB Kit (2x4GB) DDR4 2666 MHz CL19 Desktop Memory CT2K4G4DFS8266

**Brand:** crucial
**Price:** ¥41997
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your desktop’s brainpower — because speed waits for no one!

## Quick Answers

- **What is this?** Crucial RAM 8GB Kit (2x4GB) DDR4 2666 MHz CL19 Desktop Memory CT2K4G4DFS8266 by crucial
- **How much does it cost?** ¥41997 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/207705556-crucial-ram-8gb-kit-2x4gb-ddr4-2666-mhz-cl19-desktop)

## Best For

- crucial enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Simplicity:** Effortless installation with no tech skills needed—get upgraded in minutes with Crucial’s easy guides.
- • **Guaranteed Compatibility:** Use Crucial’s System Scanner or Advisor Tool to ensure perfect fit with your desktop setup.
- • **Turbocharge Your Workflow:** Experience lightning-fast 2666 MHz DDR4 memory for smooth multitasking and rapid app launches.
- • **Engineered for Reliability:** Backed by Micron’s 42 years of memory expertise and rigorous testing for rock-solid performance.
- • **Optimized Power Efficiency:** Runs at a low 1.2V voltage to keep your system cool and energy-smart without sacrificing speed.

## Overview

The Crucial 8GB (2x4GB) DDR4 2666 MHz CL19 Desktop Memory Kit delivers reliable, high-speed performance with low power consumption. Featuring 288-pin UDIMM form factor and backed by Micron’s 42 years of expertise, it ensures seamless compatibility and easy installation for enhanced multitasking and faster app responsiveness.

## Description

Buy

## Features

- Improve your system's responsiveness, run apps faster and multitask with ease
- Install with ease; no computer skills required. How-to guides available at Crucial
- Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool
- Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise
- ECC Type = Non-ECC, Form Factor = UDIMM, Pin Count = 288-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx8

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KFPBNZ9 |
| Best Sellers Rank | 105,985 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 694 in Computer Memory |
| Brand Name | Crucial |
| Column Address Strobe Latency | 19 nanoseconds |
| Compatible Devices | Desktop |
| Country of Origin | Thailand |
| Customer Reviews | 4.6 4.6 out of 5 stars (107) |
| Data Transfer Rate | 12 Gigabits Per Second |
| Form Factor | DIMM |
| Global Trade Identification Number | 00649528785947 |
| Item Type Name | CT2K4G4DFS8266 |
| Item Weight | 0.04 Kilograms |
| Manufacturer | Crucial |
| Manufacturer Part Number | CT2K4G4DFS8266 |
| Memory Form Factor | UDIMM |
| Memory Generation | DDR4 |
| Memory Speed | 2666 MHz |
| Model Name | DFS8266 |
| Model Number | CT2K4G4DFS8266 |
| Number of Items | 2 |
| Number of Packs | 1 |
| Number of Pins | 288 |
| Product Features | No ECC |
| Product Warranty | Limited Lifetime Warranty |
| RAM Memory Technology | DDR4 |
| RAM Size | 8 GB |
| UPC | 649528785947 |
| Voltage | 1.2 Volts |

## Product Details

- **Brand:** Crucial
- **Compatible devices:** Desktop
- **Computer memory size:** 8 GB
- **Memory speed:** 2666 MHz
- **RAM memory technology:** DDR4

## Images

![Crucial RAM 8GB Kit (2x4GB) DDR4 2666 MHz CL19 Desktop Memory CT2K4G4DFS8266 - Image 1](https://m.media-amazon.com/images/I/61j-w14371L.jpg)

## Available Options

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

## Questions & Answers

**Q: Is it competible with hp prodesk g2 sff desktop?**
A: Thank you for choosing crucial, we would like to inform you that the part CT4G4DFS8266 is 100% compatible with your HP prodesk g2 sff desktop.

**Q: Lenovo ideacentre 700 25ish? Need help everything has been contradicting on what will work and not!**
A: The part CT2K4G4DFS8266 is compatible with this system.

**Q: Is this compatible with inspiron 3583 laptop**
A: Thank you for your inquiry. 

CT4G4DFS8266 is not compatible with Dell inspiron 3583. Compatible 4GB 2666 MT/s memory part number is CT4G4SFS8266 and CT4G4SFS6266.

**Q: Will it fit dell i5378-3031gry-pus inspiron, 13.3"**
A: Crucial 4GB Single DDR4 2666 MT/s (PC4-21300) CL19 x8 UDIMM 288-Pin Memory is not compatible with dell i5378-3031gry-pus.

## Frequently Bought Together

- Crucial RAM 8GB Kit (2x4GB) DDR4 2666 MHz CL19 Desktop Memory CT2K4G4DFS8266
- SAMSUNG 870 EVO SATA SSD 500GB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E500B/AM, Black
- Crucial RAM 16GB Kit (2x8GB) DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Desktop Memory CT2K8G4DFRA32A

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**Shop now:** [https://www.desertcart.jp/products/207705556-crucial-ram-8gb-kit-2x4gb-ddr4-2666-mhz-cl19-desktop](https://www.desertcart.jp/products/207705556-crucial-ram-8gb-kit-2x4gb-ddr4-2666-mhz-cl19-desktop)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-07*