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A-Tech

A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module

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Returnable until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by A-Tech Components
Arrives Friday, Jan 30
Order within 18 hours and 13 minutes
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Size: 16GB


Features

  • Compatible with select DDR4 Desktop computers + Easy to install at home, no expertise required
  • Maximize your system's performance, boost loading speeds and multitask with ease
  • Backed by A-Tech's Lifetime Warranty + Friendly tech support team available to help before and after your purchase
  • Single 16GB RAM Module | DDR4 DIMM 288-Pin | Speeds up to 2666MHz (2667MHz), PC4-21300 / PC4-2666V
  • NON-ECC Unbuffered | 1Rx8 or 2Rx8 - Single or Dual Rank | JEDEC DDR4 standard 1.2V

Brand: A-Tech


Computer Memory Size: 16 GB


RAM Memory Technology: DDR4


Memory Speed: 2666 MHz


Compatible Devices: Desktop, Workstation


RAM: ‎16 GB DDR4


Memory Speed: ‎2666 MHz


Brand: ‎A-Tech


Item model number: ‎AT16G1D4D2666NA0N12V


Item Weight: ‎0.81 ounces


Product Dimensions: ‎5.25 x 1.23 x 0.15 inches


Item Dimensions LxWxH: ‎5.25 x 1.23 x 0.15 inches


Color: ‎Multicolor


Computer Memory Type: ‎DDR4 SDRAM


Voltage: ‎1.2 Volts


Manufacturer: ‎A-Tech Components


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎November 13, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great Product!
Size: 32GB Kit (2 x 16GB)
I never leave feedback (and they request it almost immediately after you receive the product, so you really aren't able to assess the long-term performance), BUT, on this one so far, the results have been awesome! Received it quickly, installed it easily and my 6 year old PC runs BETTER than it did when new. Speed and Reliability are outstanding. Huge performance improvement over what I was dealing with. Again, I have to qualify it with "So Far", but I'm very happy as of now. ... show more
Reviewed in the United States on October 14, 2025 by Amazon Customer
    • Great Deal
Size: 16GB Kit (2 x 8GB)
Works great. Fits perfectly in the memory slot. Price was right. Ran an exhaustive memory test and it passes with flying colors.
Reviewed in the United States on November 23, 2025 by Yum Yum
    • Easy install and works great!!
Size: 64GB Kit (4 x 16GB)
Easy install and works great!!
Reviewed in the United States on December 11, 2025 by Dr. Watt
    • Very good product at a decent price.
Size: 64GB Kit (4 x 16GB)
Very good product at a decent price.
Reviewed in the United States on October 12, 2025 by Ricardo Hernandez Lecanda
    • shipping order has to be checked and need to add note. But not a memory card only RAM
Size: 8GB
I love it and it is the exact model for my desktop pavilion HP. I wanted to add more space so I can continue my work. However, it was not what i expected when I ask FB community about it, and they know their work when I reupdate the Desktop. Now the dislike was the shipping it both my fault and shipment that it did not reach it destination about 11 days late. I should of add a note on the paper with my number and office information. Then the shipment fault that it did not came into the working time. again, it was both errors. but the result was it came in perfectly, fit in my desktop, and it did made changes to my desktop to go faster, but the memory did not improve. at least I upgrade the desktop and function very well. ... show more
Reviewed in the United States on December 15, 2021 by Amazon Customer
    • Exactly what I needed. gave my Slow computer new life!
Size: 32GB Kit (2 x 16GB)
I swapped out the single 8GB stick on my desktop for these two A-Tech 16 GB sticks. The install was quick and I had no issues with the fit into the slots or recognition of the swap out. Booted right up and the difference in performance was obvious right away. I work with some larger Illustrator design files and noticed smoother multitasking and faster load times immediately. These sticks came in easy to open packaging and was exactly what I needed. Been running for a week with no hiccups. If you are looking for a solid upgrade and easy installation these A-Tech 16 GB RAM sticks will do it without breaking the bank. ... show more
Reviewed in the United States on July 12, 2025 by Christine
    • Easy to find
Size: 8GB
Very good worked no problems
Reviewed in the United States on October 23, 2025 by gc8899
    • Wise upgrade to my Dell computer
Size: 32GB Kit (2 x 16GB)
Very easy to use once you review the You Tube videos on the subject. Really sped my computer up and no longer have to wait for the self maintenance on my Dell.
Reviewed in the United States on November 27, 2025 by Kindle Customer

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