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Eligible for Return, Refund or Replacement within 30 days of receipt
Eligible for Return, Refund or Replacement within 30 days of receipt
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Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. You may receive a partial or no refund on used, damaged or materially different returns.
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Crucial 64GB Kit (16GBx4) DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - CT4K16G4DFD8266

4.2 4.2 out of 5 stars 78 ratings
$234.05
64GB Kit (16GBx4) DR
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Purchase options and add-ons

Brand Crucial
Computer Memory Size 64 GB
RAM Memory Technology DRAM
Memory Speed 2666 MHz
Compatible Devices Desktop

About this item

  • 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 Percent
  • Reduce power consumption by up to 40 Percent
  • Faster bursts access speeds for improved sequential data throughout
  • Dual Ranked, x8 based, Unbuffered DIMM

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Crucial 64GB Kit (16GBx4) DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - CT4K16G4DFD8266
$234.05
Get it May 2 - 6
Only 7 left in stock - order soon.
Ships from and sold by Memorybank.
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SAMSUNG 980 PRO SSD 1TB PCIe 4.0 NVMe Gen 4 Gaming M.2 Internal Solid State Drive Memory Card , Maximum Speed, Thermal Contro
$107.00
Get it as soon as Saturday, May 4
Only 14 left in stock - order soon.
Sold by Sales For You and ships from Amazon Fulfillment.
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AMD Ryzen 9 3900X 12-core, 24-thread unlocked desktop processor with Wraith Prism LED Cooler
$395.00
Get it May 2 - 7
In Stock
Ships from and sold by Maestro Technology LLC.
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Crucial 64GB Kit (16GBx4) DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - CT4K16G4DFD8266
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Mushkin SILVERLINE Series – DDR4 Desktop DRAM – 64GB (2x32GB) UDIMM Memory Kit – 3200MHz (PC4-25600) CL-22 – 288-pin 1.2V RAM – Non-ECC – Dual-Channel – Stiletto V2 Silver Heatsink – (MSL4U320NF32GX2)
Mushkin SILVERLINE Series – DDR4 Desktop DRAM – 64GB (2x32GB) UDIMM Memory Kit – 3200MHz (PC4-25600) CL-22 – 288-pin 1.2V RAM – Non-ECC – Dual-Channel – Stiletto V2 Silver Heatsink – (MSL4U320NF32GX2)
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Price$234.05-38% $58.99
List: $94.99		$118.99-31% $116.99
List: $169.99		-5% $113.99
Typical: $119.99		$119.99
Delivery
Get it May 2 - 6
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Customer Ratings
4.24.2 out of 5 stars78
4.74.7 out of 5 stars2,980
4.54.5 out of 5 stars1,424
4.74.7 out of 5 stars2,980
4.64.6 out of 5 stars1,090
4.74.7 out of 5 stars516
Easy to install
5.0
4.8
4.6
4.8
4.6
4.9
For gaming
4.6
4.4
4.3
4.4
4.3
4.6
Value for money
4.4
4.6
4.3
4.6
4.4
4.8
Sold By
Memorybank
Amazon.com
Official Patriot Memory Store
Amazon.com
TEAMGROUP Inc.
FreeTail Tech
computer memory size
64 GB
32 GB
64 GB
64 GB
64 GB
64 GB
memory speed
2666 MHz
3200 mt s
3200 MHz
3200 mt s
3200 MHz
3200 MHz
RAM tech
DRAM
DDR4
DDR4
DDR4
DDR4
DDR4
number of items
4
2
2
2
2
2
data transfer rate
2133 megabits per second
3200 mt s
12 gigabits per second
3200 mt s
3200 MHz
12 gigabits per second
number of pins
288
288
288
288
—
288
compatible devices
Desktop
Desktop
—
Desktop
Desktop
Desktop
form factor
DIMM
DIMM
288-Pin
DIMM
U-DIMM
288-pin

Looking for specific info?

From the manufacturer

Crucial Desktop Memory

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

Make everything on your computer faster

Easy to install

Multitask with ease

Easy to install

Easy to install

Maximize the value of your system

Maximize the value of your system

Make everything on your computer faster

Make everything on your computer faster

The amount of memory in your system plays a critical role in the speed of loading apps, browsing the internet, and editing a spreadsheet. Add more memory for faster performance.

Multitask with ease

Multitask with ease

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

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.

Maximize the value of your system

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 desktop by giving it the resources it needs to perform.

Product information

Technical Details

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Summary
Other Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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Crucial

Crucial 64GB Kit (16GBx4) DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - CT4K16G4DFD8266

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Product Description

CT4K16G4DFD8266 is a 64GB Kit consisting of (4) 16GB DDR4 desktop modules that operates at speeds up to 2666 MT/s and has a CL19 latency. It is an Buffered DIMM. It conforms to the industry standard DDR4 ECC UDIMM layout of 288 pins and is compatible with systems that take DDR4 2666MT/s UDIMM memory.

What's in the box

  • DDR4 Desktop DRAM

    • Product guides and documents

    Installation Manual (PDF)

    Customer reviews

    4.2 out of 5 stars
    4.2 out of 5
    78 global ratings
    dedodated wham
    5 Stars
    dedodated wham
    64GB dedodated wham 4 my ProxMox suhrvur,runs like buttah *chefs kiss*
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    Top reviews from the United States

    Hussain
    5.0 out of 5 stars Great memory and great seller
    Reviewed in the United States on March 19, 2022
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    5 star for the product and also the seller. I bought four DIMM’s and only 3 were being recognized by my computer. I reached to the seller and they sent me replacement right away. The replacement didn’t work either so I called my computer manufacturer. Come to find out that it was an issue with my computers BIOS. After flashing the BIOS, all of the DIMM’s were recognized. There was nothing wrong with the product but it was my computer that had the issue. Anyways, I am happy with the product and also the seller for sending me a replacement right away.
    Helpful
     Report
    -JP
    5.0 out of 5 stars Why pay someone to upgrade your memory?
    Reviewed in the United States on April 28, 2020
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    Easy peasy. It takes longer to disconnect the wires than it does to upgrade memory. Get on Youtube and check out the how to do it videos.
    Helpful
     Report
    Martyman
    5.0 out of 5 stars Perfect match
    Reviewed in the United States on May 2, 2020
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    Bought the ram to help my desktop get a bit more computing power! LOL! Noticeable speed difference after the initial install.
    One person found this helpful
    Helpful
     Report
    wintergreen
    5.0 out of 5 stars dedodated wham
    Reviewed in the United States on March 24, 2021
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    64GB dedodated wham 4 my ProxMox suhrvur,

    runs like buttah *chefs kiss*
    Customer image
    wintergreen
    5.0 out of 5 stars dedodated wham
    Reviewed in the United States on March 24, 2021
    64GB dedodated wham 4 my ProxMox suhrvur,

    runs like buttah *chefs kiss*
    Images in this review
    Customer image
    Customer image
    Helpful
     Report
    Healthcare IT professional
    5.0 out of 5 stars As expected
    Reviewed in the United States on May 4, 2020
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    Only a couple weeks in but working as expected. The work from home movement made this upgrade necessary.
    One person found this helpful
    Helpful
     Report
    JAMES B.
    5.0 out of 5 stars Great deal on 64GB
    Reviewed in the United States on April 18, 2020
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    Bought to upgrade Dell Precision T5810 for CAD work. Worked great, plug and play.
    3 people found this helpful
    Helpful
     Report
    David B.
    5.0 out of 5 stars Woke y puter up!
    Reviewed in the United States on July 13, 2020
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    Not much to say, shipping was fast and the product works
    Helpful
     Report
    James L Taylor
    3.0 out of 5 stars Parts did not work
    Reviewed in the United States on April 11, 2021
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    Parts did not work
    Helpful
     Report

    Top reviews from other countries

    Petri Järvinen
    5.0 out of 5 stars Perfect
    Reviewed in Singapore on July 16, 2020
    Size: 64GB Kit (16GBx4) DRVerified Purchase
    Worked perfectly. Installed to Dell 8930 Desktop computer. No problems whatsoever.
    Report
    Arnaud
    1.0 out of 5 stars Not an ECC memory kit
    Reviewed in Germany on June 9, 2020
    Size: 32GB Kit (8GBx4) SRVerified Purchase
    Not an ECC kit.
    It is way overpriced for a non-ECC kit.
    Description is misleading at best.
    I will return it, and that's now a 2 weeks delay for my build to be complete.

    Description says : It conforms to the industry standard DDR4 ECC UDIMM layout of 288 pins and is compatible with systems that take DDR4 2666 MT/s UDIMM memory.
    Report