---
product_id: 186387644
title: "Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266"
brand: "crucial"
price: "$65.52"
currency: USD
in_stock: true
reviews_count: 13
category: "Crucial"
url: https://www.desertcart.us/products/186387644-crucial-ram-4gb-ddr4-2666-mhz-cl19-laptop-memory-ct4g4sfs8266
store_origin: US
region: United States of America
---

# 2666 MHz blazing speed 4GB DDR4 capacity 1.2V low power efficiency Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266

**Brand:** crucial
**Price:** $65.52
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your laptop’s brainpower — don’t get left behind!

## Quick Answers

- **What is this?** Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 by crucial
- **How much does it cost?** $65.52 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/186387644-crucial-ram-4gb-ddr4-2666-mhz-cl19-laptop-memory-ct4g4sfs8266)

## 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:** No tech skills needed—easy installation with Crucial’s step-by-step guides.
- • **Energy-Efficient Operation:** Runs at a low 1.2V voltage to keep your system cool and battery life longer.
- • **Compact SO-DIMM Form Factor:** Designed for laptops, fits perfectly without hassle or upgrades complexity.
- • **Turbocharge Your Laptop Performance:** Experience seamless multitasking and faster app launches with 2666 MHz DDR4 speed.
- • **Trusted Reliability with 10-Year Warranty:** Backed by Crucial’s decade-long warranty and US-based quality assurance.

## Overview

The Crucial 4GB DDR4 2666 MHz CL19 Laptop Memory (CT4G4SFS8266) is a high-performance, energy-efficient SO-DIMM module designed to boost laptop responsiveness and multitasking. With a fast 2666 MHz speed, low 1.2V power consumption, and easy installation, it’s a reliable upgrade backed by a 10-year warranty and US manufacturing quality.

## Description

Buy Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 online at low price in India on desertcart.in. Check out Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 reviews, ratings, features, specifications and browse more Crucial products online at best prices on desertcart.in.

Review: Great budget option - The packaging was great and the the ram works very well. Great product for its price
Review: Value for money product. - I received 18 perfect condition and value for money . Performance and quality also good .

## Features

- 4GB, DDR4 RAM
- Memory Speed-2666MHz /PC4-21300 /CL19
- ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx8
- 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
- Crucial 10-year limited warranty
- Country of Origin: United States.
- Drive form factor: 2.5inch and M.2, Drive Interface: SATA/PCIe
- For performance or compatibility related issues customers will have to reach out to Crucial's technical support. For more details, kindly refer to our Refund Policy page.
- In an unlikely case of product quality related issue, we may ask you to reach out to brand’s customer service support and seek resolution. We will require brand proof of issue to process replacement request.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HP78DZ5 |
| Batteries | Lithium Ion batteries required. |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #19,439 in Electronics ( See Top 100 in Electronics ) #38 in Memory |
| Brand | Crucial |
| Compatible Devices | Laptop |
| Computer Memory Type | DDR4 SDRAM |
| Country of Origin | USA |
| Customer Reviews | 4.5 4.5 out of 5 stars (41,727) |
| Data Transfer Rate | 42664 Megabits Per Second |
| Date First Available | 27 September 2018 |
| Digital storage capacity | 16 GB |
| Does it contain liquid? | No |
| Form Factor | SO-DIMM |
| Generic Name | Memory |
| Hard Drive Size | 4 GB |
| Hardware Interface | PCI |
| Importer | RASHI PERIPHERALS PRIVATE LIMITED |
| Item Dimensions LxWxH | 14 x 1.2 x 3.2 Centimeters |
| Item Weight | 8 g |
| Item model number | CT4G4SFS8266 |
| Manufacturer | Micron Technology |
| Memory Storage Capacity | 4 GB |
| Model | CT4G4SFS8266 |
| Model Name | DDR4 DIMM |
| Model Year | 2018 |
| Mounting Hardware | DRAM |
| Net Quantity | 1 Count |
| Packer | MICRON CONSUMER PRODUCTS GROUP(SINGAPORE)A DIVISION OF MICRON SEMICONDUCTOR ASIA OPERATIONSPTE. LTD.1 NORTH COAST DRIVE,SINGAPORE 757432 |
| Processor Count | 1 |
| Product Dimensions | 14 x 1.2 x 3.2 cm; 8 g |
| RAM Size | 4 GB |
| Ram Memory Technology | DDR4 |
| Special Features | Faster burst access speeds |
| Standing screen display size | 16 Inches |
| Voltage | 12 Volts |
| Wattage | 1000 |

## Product Details

- **Brand:** Crucial
- **Compatible Devices:** Laptop
- **Computer Memory Size:** 4 GB
- **Memory Speed:** 2666 MHz
- **RAM Memory Technology:** DDR4

## Images

![Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 - Image 1](https://m.media-amazon.com/images/I/61FsaYbk3UL.jpg)

## Available Options

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

## Questions & Answers

**Q: I have 4gb ddr4 2400mhz , this ram is 2666mhz it will work on my laptop with 2400mhz?**
A: It will work. But the clock will be set to 2400Mhz from 2666Mhz.. It is recommended to use same clock RAMs

**Q: Will it be suitable for HP Notebook - 15-bw036nr??**
A: Yes It will support HP notebook. Just make sure to check if your notebook requires a drr3 ram or a ddr4. If it requires a ddr3 ram then this won't support.

**Q: Will it be suitable for acer aspire 3 a315-53 p4my ?**
A: You can check that on crucial company website by putting in your laptop detail, the site will provide you a direct link to amazon too

**Q: Is it compatible for HP 450 core i3?**
A: No. You need ddr3 ram.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great budget option
*by A***U on 27 December 2025*

The packaging was great and the the ram works very well. Great product for its price

### ⭐⭐⭐⭐⭐ Value for money product.
*by I***L on 15 September 2025*

I received 18 perfect condition and value for money . Performance and quality also good .

### ⭐⭐⭐⭐ Satisfied.
*by R***H on 2 January 2026*

Works good.

## Frequently Bought Together

- Crucial 4GB DDR4 SDRAM Memory Module - 4 GB - DDR4 SDRAM - 2666 MHz DDR4-2666/PC4-21300 - 1.20 V - Non-ECC - Unbuffered - 260-Pin - SODIMM, 4GB Single Rank
- Synology 2-Bay DiskStation DS224+ (Diskless)
- Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST8000VNZ04/N004)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-13*