---
product_id: 70707759
title: "Crucial CT16G4DFD8266 16GB Storage (DDR4, 2666 MT/s, PC4-21300, CL19, Dual Rank x 8, UDIMM, 288-Pin), Green"
brand: "crucial"
price: "฿25057"
currency: THB
in_stock: false
reviews_count: 8
category: "Crucial"
url: https://www.desertcart.co.th/products/70707759-crucial-ct16g4dfd8266-16gb-storage-ddr4-2666-mt-s-pc4-21300
store_origin: TH
region: Thailand
---

# 2666 MT/s DDR4 speed 40% less power consumption 288-pin UDIMM form factor Crucial CT16G4DFD8266 16GB Storage (DDR4, 2666 MT/s, PC4-21300, CL19, Dual Rank x 8, UDIMM, 288-Pin), Green

**Brand:** crucial
**Price:** ฿25057
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Upgrade your desktop’s brainpower and leave lag behind!

## Quick Answers

- **What is this?** Crucial CT16G4DFD8266 16GB Storage (DDR4, 2666 MT/s, PC4-21300, CL19, Dual Rank x 8, UDIMM, 288-Pin), Green by crucial
- **How much does it cost?** ฿25057 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/70707759-crucial-ct16g4dfd8266-16gb-storage-ddr4-2666-mt-s-pc4-21300)

## 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

- • **Speed That Keeps You Ahead:** 2666 MT/s data rate ensures faster load times and smoother workflows
- • **Boost Your Multitasking Power:** 16GB Dual Rank DDR4 memory for seamless app switching and heavy workloads
- • **Energy Smart, Performance Sharp:** Consumes up to 40% less power to keep your system cool and efficient
- • **Effortless Upgrade, Instant Impact:** Plug-and-play installation with universal 288-pin DIMM design—no tech skills needed
- • **Optimized for Next-Gen Performance:** Engineered for compatibility with latest Intel & AMD Ryzen platforms

## Overview

The Crucial CT16G4DFD8266 is a 16GB DDR4 2666 MT/s desktop memory module featuring a 288-pin UDIMM form factor and CL19 latency. Designed for easy installation and optimized for both Intel and AMD Ryzen platforms, it delivers up to 40% lower power consumption and enhanced multitasking capabilities, making it a cost-effective upgrade to accelerate your system’s responsiveness and efficiency.

## Description

From the manufacturer The fast, easy way to improve your desktop’s performance There’s an easy cure for a slow computer: more memory. Designed to help your system run faster and smoother, Crucial Desktop Memory is one of the easiest and most affordable ways to improve your system’s performance. Load programs faster. Increase responsiveness. Run data-intensive applications with ease, and increase your desktop’s multitasking capabilities. Make everything on your computer faster Memory is a component in your computer that allows for short-term data access. Since your system’s moment-to-moment operations rely on short-term data access – loading applications, browsing the Web or editing a spreadsheet – the speed and amount of memory in your system plays a critical role. Load apps in seconds by increasing the speed of your memory and installing more of it. Multitask with ease If you’re like us, you use your computer to do a lot of things at once. You might be editing a document, while also looking at pictures and browsing the Internet. This naturally leads to a performance problem: every app you’re running requires memory and competes for a limited pool of resources. Overcome this by installing high-density modules in each memory slot for seamless multitasking. Install with ease – no computer skills required With just a screwdriver, your owner’s manual, and a few minutes of time, you can install memory – no computer skills necessary. Just watch one of our three-minute install videos, and we’ll walk you step-by-step through the process. Don’t pay a computer shop to do something you can do in minutes! Maximise the value of your system At a fraction of the cost of a new system, a memory upgrade is one of the most affordable ways to increase performance. Get more out of your desktop by giving it the resources it needs to perform. Micron quality – a higher level of reliability As a brand of Micron, one of the largest memory manufacturers in the world, Crucial Desktop Memory is the standard for reliable performance. From the original SDRAM technology all the way to DDR4, we’ve engineered the memory technologies that have powered the world’s computers for 40 years and counting. Don’t settle for anything less.

Review: Dell XPS 8930 accepted these instantly and they work perfectly, no hassle. - My interest in photography means my pro camera puts out a 76Mb file for each RAW image (digital negative not a jpeg). To process the RAW image, editing software like Photoshop is needed. The Photoshop software takes a good 35 seconds on average to load, with another few seconds per image. On my original 8Gb SODIMM system it was a bit longer as pagefile swapping was going on. I upgraded to 16Gb last year, which helped, and now all four memory sockets are filled with this additional 16Gb. On my XPS8930 i5 the installation was simple. If you are new to this, the memory slots have a flick switch at each end. push them outwards, slip the memory module into them, and press down quite firmly, the switches on each slot should both be closed with the pressure, you may hear a click from each. Make sure the card is the correct way around. Also check your computer manual to make sure you have bought the right speed and number of pins, laptop memory has a different pin arrangement to desktops. In performance, the FIRST time I run Photoshop, there is no difference - the first load depends on my hard disk delivering the data, and it is a bottleneck. However, once you have run Photoshop (and any other software) and maybe closed it to do something else, the SECOND run of the software loads really fast. I will stop typing this now, and run Photoshop twice, and give you the load times - 1st run = 36 sec. closed photoshop and re started it - 2nd run = 4 sec. Microsoft Word 2016 first run = 6 sec. second run = 2 sec. So as you can see, with such a large reserve of RAM available, your computer responds quickly on the second loading of software. This is because most of the code for your software remains in RAM memory even after you close it, so the second run just requires some basic elements to be re-loaded from hard disk, while the bulk of the software is already loaded into fast RAM memory. To overcome the load speed bottleneck issue I still have, I have bought from desertcart a Sandisk 1Tb 3D NAND SSD (Solid State Drive) This will be used to clone my slow hard disk, and the load times for the first load, thereafter, should be close to the second load times I am seeing now. The times for the Second load, with my new SSD installed are likely to be pretty much instant. A hard disk reads data out into RAM at low speeds due to the fragmentation and consequential seek times. Photoshop, for example, consists of hundreds of small files all needing to be 'assembled' in order, and loaded into RAM. Each one of these small files could be fragmented on the hard drive due to the daft way Windows has always stored data on them. Defragmentation helps, but two days after you do that, it needs to be done again as many of your favourite apps have been loaded and fragmented again. SSD drives have no moving parts so can access data instantly. The typical speed of a hard disk is to read data at around 20 - 30 megabytes per second (depending on brand, size, and rotation speed). The SATA SSD drives read at 340 megabytes per second! The newer M.2 SSD Drives can hit over 3000 megabytes per second!. Be careful, only quite recent motherboards have an M.2 slot on them - but mostly anything less than 3 years old will have SATA 3 (SATA III) connections for a SATA SSD. The point I am making is that you should not expect miracles if you ONLY upgrade your RAM memory. I have spent in all, around 170 pounds, the memory 56 and the rest on the drive, a drive caddy and a cable. The computer will run like a rocket when the drive gets here later this week, Look at reviews on SSD drives, and look at CLONING your hard drive, so you don't have to install windows and all your stuff manually. Once you have cloned it you can unplug your main hard drive, tell the computer bios to use the SSC as the 'boot' drive. (access by tapping F2 on the keyboard on my Dell as it starts up). It is quite simple. Oh yes, if you do this, look at youtube 'how to install an SSD' and download cloning software - Macrium Reflect - it is free to dowload and use the home version. Get the RAM but get an SSD too! You'll think your computer has changed from a Ford Fiesta into a Porsch!
Review: A value for money performance increase. - I bought these to increase my new HP Ryzen 5 Desktop to 16GB. Straightforward installation although my desktop is a smaller midi type, so big hands in small places can be a little tricky, patience is the word here. This additional memory has worked perfectly well and so has the reason for installing it too. This increase has allowed me to turn off the windows ssd virtual page memory, which has given a sight speed increase on load screens, particulate on the game I play. Why pay all the extra for a 16GB system when you can get an 8GB and easily upgrade the other 8GB yourself with a good cost saving ? A total breeze to install and reliable performance, this type of upgrade is a no Brainer!

## Features

- Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology matures
- Increase bandwidth by up to 32%
- Reduce power consumption by up to 40%
- Faster bursts access speeds for improved sequential data throughout
- Optimized for next generation processors and platforms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0734V1YVL |
| Best Sellers Rank | 99,698 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 758 in Computer Memory |
| Box Contents | DDR4 Desktop DRAM |
| Brand | Crucial |
| Brand Name | Crucial |
| Column Address Strobe Latency | CL19 |
| Compatible Devices | Desktop |
| Compatible devices | Desktop |
| Computer memory size | 16 GB |
| Customer Reviews | 4.7 out of 5 stars 4,791 Reviews |
| Data Transfer Rate | 21300 Megabits Per Second |
| Form Factor | DIMM |
| Global Trade Identification Number | 00649528780096 |
| Item Type Name | Crucial 16GB Single DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - CT16G4DFD8266 |
| Item Weight | 0.03 Pounds |
| Item height | 1.23 inches |
| Manufacturer | Micron |
| Memory Speed | 2666 MHz |
| Memory speed | 2666 MHz |
| Model Name | Crucial DDR4 2666 MT/s DIMMS |
| Number of Pins | 288 |
| Product Features | nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^16GB | Error Checking^NON-ECC | Intel-Validated^Y | Megabytes^16384 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^288-pin DIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW |
| RAM Memory Technology | DDR4 |
| RAM Size | 16 GB |
| RAM memory technology | DDR4 |
| Special feature | nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^16GB | Error Checking^NON-ECC | Intel-Validated^Y | Megabytes^16384 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^288-pin DIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW Special feature nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^16GB | Error Checking^NON-ECC | Intel-Validated^Y | Megabytes^16384 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^288-pin DIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW See more |
| UPC | 649528780096 |
| Unit Count | 1.00 count |
| Voltage | 1.2 Volts |

## Product Details

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

## Images

![Crucial CT16G4DFD8266 16GB Storage (DDR4, 2666 MT/s, PC4-21300, CL19, Dual Rank x 8, UDIMM, 288-Pin), Green - Image 1](https://m.media-amazon.com/images/I/51o+mxsOM+L.jpg)
![Crucial CT16G4DFD8266 16GB Storage (DDR4, 2666 MT/s, PC4-21300, CL19, Dual Rank x 8, UDIMM, 288-Pin), Green - Image 2](https://m.media-amazon.com/images/I/61DPFAmugxL.jpg)
![Crucial CT16G4DFD8266 16GB Storage (DDR4, 2666 MT/s, PC4-21300, CL19, Dual Rank x 8, UDIMM, 288-Pin), Green - Image 3](https://m.media-amazon.com/images/I/61WrSm1ISgL.jpg)
![Crucial CT16G4DFD8266 16GB Storage (DDR4, 2666 MT/s, PC4-21300, CL19, Dual Rank x 8, UDIMM, 288-Pin), Green - Image 4](https://m.media-amazon.com/images/I/61j3CTxnXVL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Dell XPS 8930 accepted these instantly and they work perfectly, no hassle.
*by A***S on 14 July 2020*

My interest in photography means my pro camera puts out a 76Mb file for each RAW image (digital negative not a jpeg). To process the RAW image, editing software like Photoshop is needed. The Photoshop software takes a good 35 seconds on average to load, with another few seconds per image. On my original 8Gb SODIMM system it was a bit longer as pagefile swapping was going on. I upgraded to 16Gb last year, which helped, and now all four memory sockets are filled with this additional 16Gb. On my XPS8930 i5 the installation was simple. If you are new to this, the memory slots have a flick switch at each end. push them outwards, slip the memory module into them, and press down quite firmly, the switches on each slot should both be closed with the pressure, you may hear a click from each. Make sure the card is the correct way around. Also check your computer manual to make sure you have bought the right speed and number of pins, laptop memory has a different pin arrangement to desktops. In performance, the FIRST time I run Photoshop, there is no difference - the first load depends on my hard disk delivering the data, and it is a bottleneck. However, once you have run Photoshop (and any other software) and maybe closed it to do something else, the SECOND run of the software loads really fast. I will stop typing this now, and run Photoshop twice, and give you the load times - 1st run = 36 sec. closed photoshop and re started it - 2nd run = 4 sec. Microsoft Word 2016 first run = 6 sec. second run = 2 sec. So as you can see, with such a large reserve of RAM available, your computer responds quickly on the second loading of software. This is because most of the code for your software remains in RAM memory even after you close it, so the second run just requires some basic elements to be re-loaded from hard disk, while the bulk of the software is already loaded into fast RAM memory. To overcome the load speed bottleneck issue I still have, I have bought from Amazon a Sandisk 1Tb 3D NAND SSD (Solid State Drive) This will be used to clone my slow hard disk, and the load times for the first load, thereafter, should be close to the second load times I am seeing now. The times for the Second load, with my new SSD installed are likely to be pretty much instant. A hard disk reads data out into RAM at low speeds due to the fragmentation and consequential seek times. Photoshop, for example, consists of hundreds of small files all needing to be 'assembled' in order, and loaded into RAM. Each one of these small files could be fragmented on the hard drive due to the daft way Windows has always stored data on them. Defragmentation helps, but two days after you do that, it needs to be done again as many of your favourite apps have been loaded and fragmented again. SSD drives have no moving parts so can access data instantly. The typical speed of a hard disk is to read data at around 20 - 30 megabytes per second (depending on brand, size, and rotation speed). The SATA SSD drives read at 340 megabytes per second! The newer M.2 SSD Drives can hit over 3000 megabytes per second!. Be careful, only quite recent motherboards have an M.2 slot on them - but mostly anything less than 3 years old will have SATA 3 (SATA III) connections for a SATA SSD. The point I am making is that you should not expect miracles if you ONLY upgrade your RAM memory. I have spent in all, around 170 pounds, the memory 56 and the rest on the drive, a drive caddy and a cable. The computer will run like a rocket when the drive gets here later this week, Look at reviews on SSD drives, and look at CLONING your hard drive, so you don't have to install windows and all your stuff manually. Once you have cloned it you can unplug your main hard drive, tell the computer bios to use the SSC as the 'boot' drive. (access by tapping F2 on the keyboard on my Dell as it starts up). It is quite simple. Oh yes, if you do this, look at youtube 'how to install an SSD' and download cloning software - Macrium Reflect - it is free to dowload and use the home version. Get the RAM but get an SSD too! You'll think your computer has changed from a Ford Fiesta into a Porsch!

### ⭐⭐⭐⭐⭐ A value for money performance increase.
*by M***K on 28 January 2020*

I bought these to increase my new HP Ryzen 5 Desktop to 16GB. Straightforward installation although my desktop is a smaller midi type, so big hands in small places can be a little tricky, patience is the word here. This additional memory has worked perfectly well and so has the reason for installing it too. This increase has allowed me to turn off the windows ssd virtual page memory, which has given a sight speed increase on load screens, particulate on the game I play. Why pay all the extra for a 16GB system when you can get an 8GB and easily upgrade the other 8GB yourself with a good cost saving ? A total breeze to install and reliable performance, this type of upgrade is a no Brainer!

### ⭐⭐⭐⭐⭐ Perfect for gaming!
*by M***T on 21 March 2020*

Just because this isn’t a gaming brand or advertised as gaming ram, it is spot on, you could get faster clock rates rather than 2666. But this does for any gaming needs. Will do for any software needs as long as you have enough ram for the game / programs. I’ve played COD Warzone, GTAV, rocket league and many others. All with good loading times. Perfect for a budget gaming pc. Perfect for a high end gaming pc. Perfect for an office pc. Perfect for any pc that requires DDR4. Don’t waste your money on “high end” brands because you’re paying for the name. I say this because I previously bought hyperX ram for an older build and I cannot notice a difference between that ram and this crucial ram. Yet I paid 1/3 the price this time for 2x the amount.

## Frequently Bought Together

- Crucial 16GB Single DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - CT16G4DFD8266
- Intel Core i5-12400 Desktop Processor 18M Cache, up to 4.40 GHz

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-25*