---
product_id: 228564889
title: "RAM CT16G4SFRA266 16GB DDR4 2666MHz CL19 Laptop Memory"
brand: "crucial"
price: "₨5511"
currency: SCR
in_stock: true
reviews_count: 13
category: "Crucial"
url: https://www.desertcart.sc/products/228564889-ram-ct16g4sfra266-16gb-ddr4-2666mhz-cl19-laptop-memory
store_origin: SC
region: Seychelles
---

# 16GB DDR4 capacity 260-pin SODIMM form factor 2666MHz high-speed frequency RAM CT16G4SFRA266 16GB DDR4 2666MHz CL19 Laptop Memory

**Brand:** crucial
**Price:** ₨5511
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your laptop’s brainpower and never miss a beat!

## Quick Answers

- **What is this?** RAM CT16G4SFRA266 16GB DDR4 2666MHz CL19 Laptop Memory by crucial
- **How much does it cost?** ₨5511 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/228564889-ram-ct16g4sfra266-16gb-ddr4-2666mhz-cl19-laptop-memory)

## 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 required—upgrade your laptop in minutes.
- • **Blazing Fast Performance:** 2666MHz speed ensures apps launch instantly and gaming stays smooth.
- • **Micron-Backed Reliability:** Built on 42 years of memory expertise with rigorous testing for rock-solid stability.
- • **Seamless Multitasking Powerhouse:** 16GB DDR4 capacity to handle your heaviest workloads without breaking a sweat.
- • **Universal Compatibility Assurance:** Use Crucial’s System Scanner to guarantee perfect fit and peak performance.

## Overview

The Crucial CT16G4SFRA266 is a 16GB DDR4 2666MHz SODIMM laptop memory module designed to boost system responsiveness and multitasking efficiency. Featuring CL19 latency and a 260-pin form factor, it offers reliable performance backed by Micron’s 42 years of expertise. Compatible with a wide range of DDR4 2666 systems, it installs easily without technical know-how, making it the perfect upgrade for professionals and gamers seeking seamless speed and stability.

## Description

Boost system speed and multitask seamlessly with this 16GB DDR4 notebook module. Featuring CL19 latency and up to 2666MT/s, it's compatible with DDR4 2666 SODIMM systems.

Review: It can work with Synology - I bought an 8GB RAM (part number: CT8G4SFRA266 2666MHz CL19 ) to extend the RAM of my Synology DS220+ NAS. Although Synology says the system supports up to 6 GB of RAM (2GB is included in the original box), the system actually supports more than that. You can add at least another 16GB of RAM to use as a cache to boost up the performance. I have read the previous comments – some claimed that CT8G4SFRA266 does not fit with Synology. This is not true. Mine works very well on DS220+. There are two possibilities why some people found it was not working: 1. They didn't correctly insert the RAM. You will need to first push the RAM very hard until hearing a clicking before lowering the RAM to sit on the RAM slot. There are many posts online where people claim the RAM doesn't work just because they didn't currently insert the RAM. 2. There are different variants of the Crucial memory "FRA266". Upon receiving the RAM, you will find that the RAM has another four digitals part number printed on the tag. Mine is shown in the photo, which is C8FR. This means the RAM is built using 8x 1GB memory cells, where both sides of the RAM have memory cells. This will work on Synology. This part number can also be C8FJ, which will also work too. However, if this part number is C4FE, it means the RAM is built using 4x 2GB memory cells, where the memory cells are sodered on just one side of the RAM. In this case, it won't be compatible with Synology. Unfortunately, you will not get to see this part number until you receive the RAM. I suspect this applies to the 16GB RAM, too, as there are some people online saying it works for Synology while others saying it doesn't. Overall, I am pleased with this purchase.
Review: Great piece of kit - I brought this RAM one stick 16GB at 2666MHZ on the 1 of January 2021. I used it in conjuction with a single 8GB RAM already installed on my Gaming laptop. Nearly two years later and still going strong. I still get 60+FPS on games even though I use two different types of RAM sizes. Gaming performance never suffered. Its a plug and play type of kit, just install it into the memory banks and you're good to go. It came in anti static packaging so no need to worry about that like other sellers. Just ensure that you get that right type for your PC DDR4 and speed 2666MHZ. If your current ram is slower like 2400MHZ then your PC will automatically downclock the RAM to 2400MHZ or to whatever the slowest speed of your RAM is. So it is vital that your get the right type and right speed for your PC for value for money. Hope this helps.

## 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=SODIMM, Pin Count=260-pin, PC Speed=PC4-21300, Voltage=1.2V, Rank and Configuration=1Rx8 or 2Rx8

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08C4VKYFG |
| Best Sellers Rank | 18,700 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 77 in Computer Memory |
| Guaranteed software updates until | unknown |
| Item model number | CT16G4SFRA266 |
| Language | English, English, English, English, English |
| Manufacturer | Crucial |
| Product Dimensions | 6.86 x 1.09 x 2.79 cm; 8.5 g |

## Product Details

- **Brand:** Crucial
- **Compatible devices:** Laptop
- **Computer memory size:** 16
- **Memory speed:** 2666 MHz
- **RAM memory technology:** DDR4

## Images

![RAM CT16G4SFRA266 16GB DDR4 2666MHz CL19 Laptop Memory - Image 1](https://m.media-amazon.com/images/I/71oz85Vv6mL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this work on a msi gf65 thin 9sexr? if you dont know dont awnser... i want to know from someone who knows!**
A: Hello and thank you for your question. Yes CT16G4SFRA266  is compatible with msi gf65 thin 9sexr.

**Q: If this works with "hp all-in-one - 22-c0022in" ?**
A: Hello,
Thank you for your Question.
We are sorry to inform you that this DRAM is not compatible with the shared information.

**Q: IS this  compatible with Lenovo E490**
A: Hello,

Thank you for  reaching out to us.

We would like to inform you that the given make and model number of your system  Lenovo E490 is compatible with the given part number  CT16G4SFRA266 of Crucial RAM, you can refer the part for your system and it should work with your system.

If you have further questions, we welcome your reply. You can also visit our Contact page for other ways to reach us.

Regards,
Smriti 
Micron Consumer Products Group 
The Crucial Team 
The memory and storage experts. ™ 
Contact us: https://www.crucial.com/support/contact

**Q: Will this work in asus ux501v?**
A: Thank you for your question.

We are sorry to inform you that we are unable to allocate the given make and model number in our database to check with the compatibility. We request you to run the Crucial scanner tool on your system to check the part is compatible with your system.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It can work with Synology
*by T***. on 22 April 2022*

I bought an 8GB RAM (part number: CT8G4SFRA266 2666MHz CL19 ) to extend the RAM of my Synology DS220+ NAS. Although Synology says the system supports up to 6 GB of RAM (2GB is included in the original box), the system actually supports more than that. You can add at least another 16GB of RAM to use as a cache to boost up the performance. I have read the previous comments – some claimed that CT8G4SFRA266 does not fit with Synology. This is not true. Mine works very well on DS220+. There are two possibilities why some people found it was not working: 1. They didn't correctly insert the RAM. You will need to first push the RAM very hard until hearing a clicking before lowering the RAM to sit on the RAM slot. There are many posts online where people claim the RAM doesn't work just because they didn't currently insert the RAM. 2. There are different variants of the Crucial memory "FRA266". Upon receiving the RAM, you will find that the RAM has another four digitals part number printed on the tag. Mine is shown in the photo, which is C8FR. This means the RAM is built using 8x 1GB memory cells, where both sides of the RAM have memory cells. This will work on Synology. This part number can also be C8FJ, which will also work too. However, if this part number is C4FE, it means the RAM is built using 4x 2GB memory cells, where the memory cells are sodered on just one side of the RAM. In this case, it won't be compatible with Synology. Unfortunately, you will not get to see this part number until you receive the RAM. I suspect this applies to the 16GB RAM, too, as there are some people online saying it works for Synology while others saying it doesn't. Overall, I am pleased with this purchase.

### ⭐⭐⭐⭐⭐ Great piece of kit
*by M***I on 16 November 2022*

I brought this RAM one stick 16GB at 2666MHZ on the 1 of January 2021. I used it in conjuction with a single 8GB RAM already installed on my Gaming laptop. Nearly two years later and still going strong. I still get 60+FPS on games even though I use two different types of RAM sizes. Gaming performance never suffered. Its a plug and play type of kit, just install it into the memory banks and you're good to go. It came in anti static packaging so no need to worry about that like other sellers. Just ensure that you get that right type for your PC DDR4 and speed 2666MHZ. If your current ram is slower like 2400MHZ then your PC will automatically downclock the RAM to 2400MHZ or to whatever the slowest speed of your RAM is. So it is vital that your get the right type and right speed for your PC for value for money. Hope this helps.

### ⭐⭐⭐⭐⭐ Works on iMac Retina 5K 27-inch - 2020
*by A***H on 25 January 2022*

I upgraded from 8GB to 32GB (2x16GB). This wasn't the official recommended upgrade kit for the iMac Retina 5K 27-inch - 2020. However the spec was exactly the same and the price was much cheaper. Therefore, I decided to give it a go and I am really pleased I did. I watched a video on YouTube and it took less than 5 minutes to fit. The iMac has a little container on the back with a door that you release using a button under the power lead. Press the button, pop the old memory modules out, pop the new ones in - job done. I'm so please I upgraded.

## Frequently Bought Together

- Crucial 16GB DDR4 2666 MT/s (PC4-21300) SODIMM 260-Pin Memory - CT16G4SFRA266
- 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 Seychelles*
*Store origin: SC*
*Last updated: 2026-03-02*