---
product_id: 50771541
title: "Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory"
brand: "micron"
price: "$57.84"
currency: USD
in_stock: true
reviews_count: 13
category: "Micron"
url: https://www.desertcart.us/products/50771541-crucial-ct51264bf186dj-4-gb-ddr3l-1866-mt-s-pc3-14900
store_origin: US
region: United States of America
---

# 1866 MT/s blazing speed 4 GB DDR3L capacity 1.35 V low power efficiency Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory

**Brand:** micron
**Price:** $57.84
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your laptop’s brainpower and leave lag behind!

## Quick Answers

- **What is this?** Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory by micron
- **How much does it cost?** $57.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/50771541-crucial-ct51264bf186dj-4-gb-ddr3l-1866-mt-s-pc3-14900)

## Best For

- micron enthusiasts

## Why This Product

- Trusted micron brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Compatible with OEM systems and recognized instantly by BIOS/UEFI—no hassle, just speed.
- • **Future-Proof Your Setup:** Supports DDR3 to DDR4 technology transitions, keeping your system ready for tomorrow.
- • **Power-Savvy Performance:** Runs at an energy-efficient 1.35 V to keep your laptop cooler and battery lasting longer.
- • **Boost Your Laptop's Agility:** Upgrade to 1866 MT/s DDR3L for seamless multitasking and faster app launches.
- • **Tested for Rock-Solid Reliability:** 100% component and module tested to ensure your workflow never skips a beat.

## Overview

The Crucial CT51264BF186DJ is a 4 GB DDR3L SO-DIMM memory module running at 1866 MT/s with a low 1.35 V voltage, designed to boost laptop performance with easy installation and broad OEM compatibility. Tested for reliability and optimized for energy efficiency, it’s a trusted upgrade for professionals seeking smoother multitasking and faster system responsiveness.

## Description

Buy

Review: Perfect!! - Bought to increase the RAM on an ASUS X751LJ (R752L) laptop, This module is recognized directly and without problem by the BIOS / UEFI. I went from 4GB of origin to 12GB thanks to the bar and I must say that even if I have already replaced the hard drive with an SSD I can clearly see the difference under Windows 10! The fluidity, the reactivity is there and it is bluffing! I even put barely ten seconds to start. The assembly is a bit tedious with regard to the RAM on this kind of ASUS laptop series, not having a hatch below, you must first remove the screws below, then remove the keyboard and finally the RAM is accessible but you still have to turn over the motherboard (ASUS is abusing it a bit). If you know your way around, or if you are motivated (finally the change is quite fast) do not hesitate, it is really worth it!
Review: 04 64bit) and do not know how this ram would function on this computer if it were running Windows as I do not use Windows (and very happy that I don't) - NOTE: I already upgraded my CPU from the stock i3 to an i5 processor*, so my computer is now about as upgraded as it can be. Upgrading a CPU is possible with this model laptop as the CPU isn't soldered to the Mother Board. The reason I upped the ram is I was running out of ram regularly with heavy video editing projects (originally had 8GB of ram). I use Ubuntu Linux (16.04 64bit) and do not know how this ram would function on this computer if it were running Windows as I do not use Windows (and very happy that I don't)... although, I would guess that this ram would work fine. This is a very easy upgrade for most laptops... just check your specific model on the Crucial website to be sure you are ordering the correct ram modules for your specific model computer to avoid the hassle of getting incompatible ram modules ;) So far I have had no problems with these ram units, and everything worked perfectly when I booted up after installing them! I am using them in a Toshiba Satellite c855-s5355 Laptop running Ubuntu 16.04 and my System Monitor shows 15.6 GB of usable RAM out of the 16 GB installed (8GBx2)... I am a happy camper! *fyi... I installed the Intel Core i5-2410M CPU @ 2.30GHz (2 cores/4 threads) which worked perfectly in my computer. However, I do not know if Windows 8 or 10 would have hiccuped with this upgrade... again, I use Linux, so it just worked in my case :)

## Features

- Increases laptop performance
- Easy to install
- Compatible with OEM systems
- 100 percent component and module tested for high reliability
- Available in DDR to DDR4 memory technology

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00KSLPNN0 |
| Best Sellers Rank | 54,780 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 303 in Computer Memory |
| Box Contents | 1 package |
| Brand Name | Micron |
| Column Address Strobe Latency | 13 |
| Compatible Devices | Laptop |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,312) |
| Data Transfer Rate | 1866 MHz |
| Form Factor | SO-DIMM |
| Global Trade Identification Number | 00649528762672, 04058829166885 |
| Item Weight | 0.01 Pounds |
| Manufacturer | Micron |
| Memory Speed | 1866 MHz |
| Model Name | CT |
| Number of Pins | 204 |
| Product Features | Unbuffered memory |
| Product Warranty | 3 years |
| RAM Memory Technology | DDR3 |
| RAM Size | 4 GB |
| UPC | 649528762672 012300120630 |
| Voltage | 1.35 Volts |

## Product Details

- **Brand:** Micron
- **Compatible devices:** Laptop
- **Computer memory size:** 4 GB
- **Memory speed:** 1866 MHz
- **RAM memory technology:** DDR3

## Images

![Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory - Image 1](https://m.media-amazon.com/images/I/71-nITczXjL.jpg)
![Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory - Image 2](https://m.media-amazon.com/images/I/71v2HApUVAL.jpg)
![Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory - Image 3](https://m.media-amazon.com/images/I/61VJq5sfA8L.jpg)
![Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory - Image 4](https://m.media-amazon.com/images/I/61Iv5vYKe8L.jpg)
![Crucial CT51264BF186DJ 4 GB DDR3L 1866 MT/s (PC3-14900) CL13 SODIMM 204-Pin 1.35 V/1.5 V Single Rank Memory - Image 5](https://m.media-amazon.com/images/I/6131IGvFn7L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does this work for mac and pc?**
A: I checked the Amazon reviews one entry had checked with Crucial It is compatable with the iMac 27inch 5k late 2015 I bought 2 packs making 32GB and fitted them into my iMac 5k and have had no problems. I do not know about the PC's I recommend contacting Crucial to check compatibility.

**Q: Why the extra 8 gb of ram has only been shown as the committed memory instead of the main one?**
A: Should show complete memory if using 64 bit OS

**Q: Hey guys, i am having trouble installing these in a late 2008 macbook. Any advice would be appreciated.**
A: Hi, your macbook takes DDR2 memory, you are asking question relative to a DDR3. As far as I'm aware, they are not interchangeable.
On Crucial's web site, they do not list 2GB rams, only 1GB! Hope this helps. Michael.

**Q: Can this be used to upgrade a gaming laptop?**
A: Thanks for your enquiry.

It is possible that this could be used in a gaming laptop. However, if you require memory for gaming you might want to consider our Ballistix range as this is designed with gamers in mind. So that we can check the compatibility of this module with your system, please contact us directly. Our contact details are below:

UK Freephone: 0800 091 0021
International: +44 (0)1355 586 100
Email: crucialeusupport@micron.com
Hours (GMT): Monday - Friday: 8am - 6pm
Community:  http://forum.crucial.com/          

We are committed to providing exceptional products and value and we welcome the opportunity to help with any of your questions or concerns.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect!!
*by G***E on 21 September 2020*

Bought to increase the RAM on an ASUS X751LJ (R752L) laptop, This module is recognized directly and without problem by the BIOS / UEFI. I went from 4GB of origin to 12GB thanks to the bar and I must say that even if I have already replaced the hard drive with an SSD I can clearly see the difference under Windows 10! The fluidity, the reactivity is there and it is bluffing! I even put barely ten seconds to start. The assembly is a bit tedious with regard to the RAM on this kind of ASUS laptop series, not having a hatch below, you must first remove the screws below, then remove the keyboard and finally the RAM is accessible but you still have to turn over the motherboard (ASUS is abusing it a bit). If you know your way around, or if you are motivated (finally the change is quite fast) do not hesitate, it is really worth it!

### ⭐⭐⭐⭐⭐ 04 64bit) and do not know how this ram would function on this computer if it were running Windows as I do not use Windows (and very happy that I don't)
*by C***R on 24 September 2017*

NOTE: I already upgraded my CPU from the stock i3 to an i5 processor*, so my computer is now about as upgraded as it can be. Upgrading a CPU is possible with this model laptop as the CPU isn't soldered to the Mother Board. The reason I upped the ram is I was running out of ram regularly with heavy video editing projects (originally had 8GB of ram). I use Ubuntu Linux (16.04 64bit) and do not know how this ram would function on this computer if it were running Windows as I do not use Windows (and very happy that I don't)... although, I would guess that this ram would work fine. This is a very easy upgrade for most laptops... just check your specific model on the Crucial website to be sure you are ordering the correct ram modules for your specific model computer to avoid the hassle of getting incompatible ram modules ;) So far I have had no problems with these ram units, and everything worked perfectly when I booted up after installing them! I am using them in a Toshiba Satellite c855-s5355 Laptop running Ubuntu 16.04 and my System Monitor shows 15.6 GB of usable RAM out of the 16 GB installed (8GBx2)... I am a happy camper! *fyi... I installed the Intel Core i5-2410M CPU @ 2.30GHz (2 cores/4 threads) which worked perfectly in my computer. However, I do not know if Windows 8 or 10 would have hiccuped with this upgrade... again, I use Linux, so it just worked in my case :)

### ⭐⭐⭐⭐⭐ Best upgrade for QNAP NAS
*by V***H on 26 September 2018*

I recently bought the new TS-251B NAS drive which came with 4GB as the highest RAM configuration but is upgradeable to 8GB officially (16GB unofficially as claimed by many other QNAP users). Since I got a 4GB version of the NAS I wanted to upgrade to 8GB so as to run virtualisation of Windows 10 on the NAS without performance problems. I found the Crucial 4GB DDR3L (Low voltage i.e. 1.35v) 1866MHz, to be compatible and also great value for money. The module recommended by QNAP costs around 80 quid plus shipping whereas this cost me 32 quid on prime next day delivery. I had done some research on other sites and Crucial was highly recommended. The installation completed in a few minutes and the NAS was upgraded to 7.7GB of real usable space. I've been using this module for over two days now and so far have seen no problems. The NAS resource monitor has not reported any issues with memory or performance therein. Everything now is a lot quicker including the web frontend. I would highly recommend this module for QNAP NAS upgrade but do check the RAM type compatibility with your NAS model.

## Frequently Bought Together

- Crucial 4GB Single DDR3/DDR3L 1866 MT/s (PC3-14900) Unbuffered SODIMM 204-Pin Memory - CT51264BF186DJ
- Crucial BX500 1TB 3D NAND SATA 2.5-Inch Internal SSD, up to 540MB/s - CT1000BX500SSD1, Solid State Drive
- Crucial MX500 1TB 3D NAND SATA 2.5 Inch Internal SSD, up to 560MB/s - CT1000MX500SSD1

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-20*