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Crucial 8GB DDR4-2666 UDIMM DDR4 RAM


 CT8G4DFS8266, Crucial 8GB DDR4-2666 UDIMM DDR4 RAM

Key Features

  • Total Capacity: 8GB
  • Voltage: 1.2V
  • Speed: 2666 MT/S
  • Form Factor: UDIMM
  • NON-ECC Unbuffered Memory
  • CT8G4DFS8266

Part No: CT8G4DFS8266

Stock Code: 2589640


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Crucial 8GB DDR4-2666 UDIMM DDR4 RAM


Crucial Desktop Memory

The fastest, easiest 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 lots 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!

Maximize 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 desktopby 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 memory represents the future of workstation and server capability. From the original DDR technology to DDR4, we’ve engineered the memory technologies that have powered the world’s systems for 35 years and counting. Designed for leading platforms, compatible with OEM systems and warranties, and backed by a limited lifetime warranty, Crucial memory pushes the limits on performance.


  • Brand: Crucial
  • Form Factor: UDIMM
  • Warranty: Limited Lifetime
  • Series: Crucial
  • Total Capacity: 8GB
  • Specs: DDR4 PC4-21300 • CL=19 • Single Ranked • x8 based • Unbuffered • NON-ECC • DDR4-2666 • 1.2V • 1024Meg x 64 •
  • Speed: 2666 MT/S
  • Voltage: 1.2V


From the Manufacturer



Number of Modules 1
Memory Size 8 GB
Memory Technology DDR4
Memory Speed 2666 MHz
Form Factor Desktop
Colour Standard

General Information
Manufacturer Part NumberCT8G4DFS8266
Manufacturer Website Addresshttp://www.crucial.com
Brand NameCrucial
Product Name8GB DDR4 SDRAM Memory Module
Product TypeRAM Module
Marketing InformationCrucial DDR4 Desktop Memory Product highlights - Speeds start at 2133 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 burst access speeds for improved sequential data throughput - Optimized for next generation processors and platforms - Available in four channel kits up to 64GB - Limited lifetime warranty More speed. More bandwidth. More efficient.The future of memory is here. In the ever-changing world of technology, any component more than half a decade old is usually in need of an update. At seven years old and counting, that's exactly the state DDR3 memory is in: computers can only do so much with it. Since the introduction of DDR3 memory technology in 2007, processors have doubled in capability, SSDs have revolutionized throughput, and graphics cards have drastically increased frame rates, leaving memory as a limiting factor. With Crucial DDR4 Desktop Memory, crush the DDR3 memory bottleneck and unlock a new standard of performance. 2x the SpeedLoad applications faster and run demanding programs without lag. Crucial DDR4 memory debuts at 2133 MT/s - more than 30% faster than DDR3 memory technology.1 Even better, as DDR4 technology matures, speeds are projected to hit 3200 MT/s - twice what was possible on standard DDR3 memory. 2x the BandwidthEffortlessly multitask between apps, and empower your system to fire on all cylinders. Crucial DDR4 increases memory bandwidth by over 30%, allowing your system to handle more data at once. As DDR4 technology matures, bandwidths are expected to achieve up to 25.6 GB/s - twice that of standard DDR3. To maximize bandwidth, Crucial DDR4 memory is optimized for next-gen platforms that support four channel memory. 40% More Energy EfficientGet better performance - using less power. Operating at just 1.2V compared to 1.5V for standard DDR3 memory, Crucial DDR4 consumes 20% less voltage than standard DDR3 technology. Crucial DDR4 modules also contain other efficiency features, for an overall power reduction of up to 40%.
Physical Characteristics
Number of Pins288-pin
Form FactorDIMM
Technical Information
Memory Size8 GB
Memory TechnologyDDR4 SDRAM
Memory Voltage1.20 V
Memory Speed2666 MHz
Memory StandardDDR4-2666/PC4-21300
Error CheckingNon-ECC
Signal ProcessingUnbuffered
CAS LatencyCL19

Please note: Pictures are for illustration only. Please contact us if you wish to confirm the specification before ordering.


Product Reviews


Crucial - CT8G4DFS8266
Crucial 8GB DDR4-2666 UDIMM DDR4 RAM


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