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Crucial 4 GB SO-DIMM 204-pin DDR3 SDRAM

Mfg # CT51264BF186DJ CDW # 3371720 | UNSPSC 32101602

Quick tech specs

  • 4 GB
  • 1866 MHz / PC3-14900
  • 1.35 V
  • non-ECC
  • SO-DIMM 204-pin
  • CL13
  • unbuffered
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Know your gear

Experience fast and responsive system performance with the Crucial System Memory. This laptop memory card comes with a memory capacity of 4 GB for system upgrade and maximum storage. It has a SO-DIMM 204-pin form factor and a memory speed of 1866 MHz that helps run data-intensive applications with ease. This unbuffered laptop memory card has a CAS latency of CL13 for a quick RAM response. It has a power supply of 1.35 volts for an efficient performance.
  • 4 GB laptop memory chip for maximum storage
  • DDR3 SDRAM with a memory speed of 1866 MHz for a superior performance

This item was discontinued on June 09, 2021

Enhance your purchase

Crucial 4 GB SO-DIMM 204-pin DDR3 SDRAM is rated 4.63 out of 5 by 54.
Rated 5 out of 5 by from Very Satisfied Very easy to determine the correct upgrade with Crucial scanner. Improved performance on my laptop.
Date published: 2018-05-31T00:00:00-04:00
Rated 5 out of 5 by from getting the feedback you need your product is fine - your survey was too long with too much overlap, especially for a novice buyer. Suggest you focus on what you really want to know in terms of feedback and make it less than one page. Thank you for allowing me to offer this opinion. Charlie
Date published: 2018-10-04T00:00:00-04:00
Rated 5 out of 5 by from Good, Cheap RAM Bought this ram for a Lenovo T430 and its working as expected - had no issues with it and the machine seems a lot speedier. Will update the review if we ever run into issues with it - so far so good.
Date published: 2016-03-28T00:00:00-04:00
Rated 5 out of 5 by from Perfect Service Good Product and specialy very good service
Date published: 2016-06-30T00:00:00-04:00
Rated 5 out of 5 by from Painless Process Very easy to install. No problems encountered. Everyone is happy.
Date published: 2016-01-14T00:00:00-05:00
Rated 5 out of 5 by from Memory Received better performance
Date published: 2015-06-01T00:00:00-04:00
Rated 5 out of 5 by from Great product The product perform great
Date published: 2017-08-12T00:00:00-04:00
Rated 5 out of 5 by from Memory easy to install and is working fine. Works very well in my HP mini. Easy to install
Date published: 2015-08-21T00:00:00-04:00
Rated 5 out of 5 by from fast, cheap, great Super cheap, easy to upgrade on my 27" 5K iMac.
Date published: 2015-11-08T00:00:00-05:00
Rated 5 out of 5 by from better than original I wish I had known I needed to use oem memory slot to put one of the new cards in. I would have bought larger memory cards. I thought what I bought was adding to what was there
Date published: 2016-03-01T00:00:00-05:00
Rated 5 out of 5 by from Much faster Trying to improve system performance on laptops
Date published: 2015-02-27T00:00:00-05:00
Rated 5 out of 5 by from Great product easy and fast Super easy to install and find the correct parts. Seems to have speed up the computer some. Cheap and easy upgrade to bring some more life and time into your machine.
Date published: 2016-03-02T00:00:00-05:00
Rated 5 out of 5 by from Results I wish I knew my weak spot was the CPU as much as the RAM. 4G is a tad overkill, but never too much right?!?!!!
Date published: 2016-02-03T00:00:00-05:00
Rated 5 out of 5 by from This really helped my computor permormance I liked the Ram memory I have ordered a faster Hard Drive
Date published: 2016-03-17T00:00:00-04:00
Rated 5 out of 5 by from Flawless Added memory to my laptop and it worked perfectly.
Date published: 2016-07-05T00:00:00-04:00
Rated 5 out of 5 by from Works Great Works great and easy to install.
Date published: 2015-04-07T00:00:00-04:00
Rated 5 out of 5 by from great service no issues
Date published: 2016-04-12T00:00:00-04:00
Rated 5 out of 5 by from Works Like a Champ I wanted to upgrade my laptop from 8GB to 16GB. Crucial's selection tool made it easy to order the correct memory. Getting the modules seated properly in those tiny sockets was a little tricky, but it didn't take too long. After installation, I used Windows Task Manager and confirmed that my memory-hog applications are now using the extra memory.
Date published: 2016-02-11T00:00:00-05:00
Rated 5 out of 5 by from System Bust Replaced and old memory simm with these 2x4G just having more memory improves things in win10. No issues with the memory suggested for my old VAIO laptop.
Date published: 2015-12-01T00:00:00-05:00
Rated 5 out of 5 by from Performed as expected Increased speed editing large photos and videos.
Date published: 2016-03-01T00:00:00-05:00
Rated 5 out of 5 by from Faster laptop Doubling the memory on my Toshiba laptop increased performance and made booting faster. I went from 4 GB to 8GB on a 64 bit machine and the difference was amazing.
Date published: 2015-09-14T00:00:00-04:00
Rated 5 out of 5 by from increased memory: easy install, improved startup Increased Win10 laptop memory from 4GB to 8GB; reduced startup time, eliminated extended period of hard drive activity upon startup.
Date published: 2015-09-29T00:00:00-04:00
Rated 5 out of 5 by from Replacement Memory Installed new memory in my HP laptop. The 8 gig increased performance and made it a better gaming computer and better overall performance.
Date published: 2015-12-01T00:00:00-05:00
Rated 5 out of 5 by from FABLOUS Thanks for all of your help.
Date published: 2015-01-01T00:00:00-05:00
Rated 5 out of 5 by from Works great, easy to install My laptop only has the capacity for 8 GB of RAM. I previously had 6. I wasn't sure the extra 2 GB would make much difference, but it has definitely helped, especially since I usually have multiple applications open that I switch between. The wait time is less and it operates more smoothly. For a minimal investment, I can put off replacing my laptop with a newer model. Installation was extremely easy.
Date published: 2016-04-03T00:00:00-04:00
Rated 5 out of 5 by from CANADA PURCHASES THE CRUCIAL SCANNER IS SO ACCURATE ITS THE BEST AROUND..TELLS YOU EXACTLY WHAT YOUR PC CAN HANDLE AND DELIVERS..STAY AWAY FROM THE BIG BOX GUYS AND GO WITH CRUCAIL..I HAVE YET TO BE DISSAPOINTED I ORDER FROM CANADA
Date published: 2016-01-13T00:00:00-05:00
Rated 5 out of 5 by from It works! The memory is great, but I was unaware that I would be required to upgrade to the 64-bit version of my operating system in order to make use of it. Ultimately that's not a Crucial issue, but it could be a stumbling block to other users. It would be nice to have a warning about this in the product-finder or the description.
Date published: 2015-11-18T00:00:00-05:00
Rated 5 out of 5 by from I would buy this product again and again The product was easy to install
Date published: 2016-03-03T00:00:00-05:00
Rated 5 out of 5 by from Problem free I use the ram in a samsung laptop. I use the laptop for my work.
Date published: 2016-02-11T00:00:00-05:00
Rated 5 out of 5 by from Great Product I received the product within the time promised. I installed the product myself which can be easy or hard depending on the computer you have. I had to watch a video to show me how to change it out but when I was done my computers performance is so much faster. I am very happy with this product and would recommend it.
Date published: 2016-03-03T00:00:00-05:00
Rated 5 out of 5 by from Problem solvers from the get go Matched motherboard requirements
Date published: 2016-02-22T00:00:00-05:00
Rated 5 out of 5 by from "This product worked great... This product makes computer musch faster..
Date published: 2015-10-16T00:00:00-04:00
Rated 5 out of 5 by from Works perfectly thus far I installed the memory upgrade (from 4 GB to 8 GB) in my Toshiba Portege R835-ST3N01 laptop, with no difficulties. Thus far I have enjoyed increased speed and no problems.
Date published: 2015-04-27T00:00:00-04:00
Rated 5 out of 5 by from Just as advertised. Very fast delivery. Competitive Pricing. Adding 8Gb memory to the Levono IdeaPad improved everything except the touch pad that sucks on this laptop. I wish there was a way to fix that! All else... visible effective improvement.
Date published: 2015-11-18T00:00:00-05:00
Rated 5 out of 5 by from The right memory at the right price. Flawless installation improving system performance.
Date published: 2015-09-14T00:00:00-04:00
Rated 5 out of 5 by from Great ram This was really easy to install and the laptop had no conflicts with the new ram . I can now watch DVDs on my laptop
Date published: 2016-04-11T00:00:00-04:00
Rated 5 out of 5 by from correct memory for my older notebook I use it at home. tend to open too many chrome windows and start to churn the hard drive. does not happen anymore with 2x4gig installed
Date published: 2016-01-13T00:00:00-05:00
Rated 5 out of 5 by from 4 GB kit... I'm very happy with it because it was originally shipped with a 4GB and a 2GB and I feel this kit not only made it faster by adding 2GB but also by balancing the RAM out...
Date published: 2016-03-15T00:00:00-04:00
Rated 5 out of 5 by from Can't use the product that was suggested The website gave me the wrong information on what to buy. My computer doesn't have space for it.
Date published: 2016-04-07T00:00:00-04:00
Rated 5 out of 5 by from Everything was great Everything was great.
Date published: 2016-02-11T00:00:00-05:00
Rated 5 out of 5 by from Great product, Great price Got a Lenovo Thinkpad to replace my ailing 2008 Mac, which I loved. However, thought process was to switch to Linux Mint, which I did. The extra 4 GB over the base memory, plus the speed of Linux Mint made this machine scream. Very happy with purchase!
Date published: 2016-03-01T00:00:00-05:00
Rated 5 out of 5 by from One of them didn't work I bought the two 4gb version. I took out the old rams and put the new ones. Only one of them worked. I pulled them again changed the place. Again, only one of them worked. Then, I took one out and tried again to find the working one. Finally, I found the working one. I put one of the old versions and put one of the working ones. So far I didn't have any problem with the working one. The computer is definitely faster. I wish both of would work.
Date published: 2015-10-28T00:00:00-04:00
Rated 5 out of 5 by from Still working on it! Hay, kids . I guess I have to figure out how to clear my "CMOS" just to get my pc to accept this card. PC just wants to through a fit at startup w/ the new mem. ...
Date published: 2017-07-25T00:00:00-04:00
Rated 5 out of 5 by from Nothing like some performance boost Took my current laptop, added this and an SSD and gave to my mother...now she has the best system in the house. Great product.
Date published: 2015-12-01T00:00:00-05:00
Rated 5 out of 5 by from I would buy thins product again and again. I was having problems with a slow computer burdened by to much going on. Upgraded the memory and the problems went away.
Date published: 2015-12-01T00:00:00-05:00
Rated 5 out of 5 by from It works well for me. Delivery was as advertised, which is to say, right on time. Installation was a breeze. First boot after installaton seemed to be faster and surfing now feels crisp.
Date published: 2015-09-15T00:00:00-04:00
Rated 5 out of 5 by from Installed quickly and easily... Was able to increase system to max memory capacity with low expense and little trouble.
Date published: 2016-03-01T00:00:00-05:00
Rated 5 out of 5 by from It did not help me much This did not increase my system performance at all. I think my system performance was same with my 4GB ram. I should not have bought this. It is waste of money
Date published: 2015-06-01T00:00:00-04:00
Rated 5 out of 5 by from Good Job Helped the boot-up and general speed.
Date published: 2015-08-01T00:00:00-04:00
Rated 5 out of 5 by from It works with out any issues There's a noticeable difference in faster performance when I installed it.
Date published: 2016-09-23T00:00:00-04:00
Rated 5 out of 5 by from 5 stars! Definitely one of the most reliable products I have purchased.
Date published: 2016-01-13T00:00:00-05:00
Rated 5 out of 5 by from excellent replacement The memory helped increase speed and performance in the HP laptop it was placed in. The ability to have multiple processes going on concurrently has definitely made using the laptop and much more enjoyable procedure.
Date published: 2015-04-24T00:00:00-04:00
Rated 5 out of 5 by from NEEDED FOR MY WORKING LAPTOP WORK VERY GOOD FAST SHIPPING EASY TO INSTALL WORK GREAT INCREASED PERFORMANCE
Date published: 2016-09-25T00:00:00-04:00
Rated 5 out of 5 by from As always, great product at a great value 4 gb of memory is just not enough to run some games and to comfortably multitask so I upgraded to 8. It is making a huge difference in my laptop's performance.
Date published: 2015-07-31T00:00:00-04:00