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Crucial

Crucial 4GB DDR4 SDRAM Memory Module - 4 GB - DDR4 SDRAM - 2666 MHz DDR4-2666/PC4-21300 - 1.20 V - Non-ECC - Unbuffered - 260-Pin - SODIMM, 4GB Single Rank

Based on 4,206 reviews
Condition: New
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$49.76

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As low as $8.29 / mo
  • – 6-month term
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Availability: Only 7 left in stock, order soon!
Fulfilled by MemoryMasters
Arrives Sunday, Nov 1
Order within 4 hours and 51 minutes

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At a glance

Condition
New
Size
4 Gb
Model
CT4G4SFS8266
Weight
8 g
RAM Memory Technology
DDR4
Memory Speed
2666 MHz
Additional Features
Lightweight
Warranty
Limited Warranty
Works with
Laptop

Features 1

  • 4GB DDR4 2666 MT/s (PC4-21300) CL19 SR x8 SODIMM 260pin

Description

Specifications Mfr Part Number: CT4G4SFS8266 Type: DDR4 SODIMM capacity: 4GB speed: pc4-21300 2666MHz size & bit: 512M x 64 pins: 260pin ECC: no registered: no single rank x8 CL 19, 1.2V

Specs 23

Brand Crucial
Computer Memory Size 4 GB
RAM Memory Technology DDR4
Memory Speed 2666 MHz
Additional Features Lightweight
Voltage 12 volts
Column Address Strobe Latency 17
Form Factor 260 pin_USO-DIMM

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 1

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google 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 easy upgrade for a basic laptop.
Capacity: 8GB Kit (4GBx2) Style: 2666MHz
I only need one dimm but for a few extra bucks I got the set to be safe that they would work together. I thought about getting 16gb but since it was a free upgrade for the neighbor I decided going from 4 to 8 would be good enough.
Reviewed in the United States on July 12, 2023 by Andrew Bohman
Works in my Synology DS220+ without any problems.
Capacity: 4GB Style: 2666MHz
Works in my Synology DS220+ without any problems.
Reviewed in the United States on July 18, 2023 by Meerkat Attack
Working great in my Synology DS220+ NAS
Capacity: 4GB Style: 2666MHz
Easy install and working great in my NAS
Reviewed in the United States on May 13, 2023 by brachiopod
Works great in my Synology DS423+ NAS
Capacity: 4GB Style: 2666MHz
Works great in my Synology DS423+ NAS
Reviewed in the United States on May 1, 2023 by owensmouth
Perfect RAM upgarde for a Synology DS920+
Capacity: 4GB Style: 2666MHz
After checking Crucial's website for compatibility with Synology I decided to try this as a cheap upgrade for my Synology DS920+. Installed really easy and worked just fine having no issues with Synology. This upgrade is perfect for running more apps and Docker containers on your Synology.
Reviewed in the United States on February 19, 2023 by Hillery York
No brainer for Synology Nas
Capacity: 4GB Style: 2666MHz
Just buy it if your trying to upgrade your Synology NAS.
Reviewed in the United States on March 20, 2023 by Amazon Customer
Great unofficial RAM for your Synology 220+ NAS
Capacity: 4GB Style: 2666MHz
My current Synology 220+ RAM usage was constantly hovering around 70-80%. I started researching to see if any additional RAM could be added. You have a few options. You can go the Synology route and end up paying $90 for a 4GB stick. OR, you could purchase one of these for a fraction of the cost. Be aware that per Synology - you will void your warranty if you go with a non-Synology RAM. I took a leap of faith after much research and guess what?! This works perfectly. Installation was a breeze and my NAS recognized it immediately. It's been running so far for about a month with no issues. The best part? My RAM usage is now between 20-30%. Much better. I notice the OS runs a lot more smoothly as well now since the RAM wasn't being almost maxed out constantly. This is definitely worth the purchase if you would like to expand your RAM. Do your research. There are a lot of posts on Reddit that share the same success that I had. You could even go higher and get yourself a 8, 16 or 32GB stick. The 4GB was more than enough for what I use my NAS for (Plex and storage). ... show more
Reviewed in the United States on March 6, 2022 by TheRealMikeO
Memory for my NAS
Capacity: 4GB Style: 2666MHz
This bank of memory works fine in a Synology NAS. The installation was easy and works great good value for the money.
Reviewed in the United States on February 19, 2023 by Wil
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