---
product_id: 28362992
title: "Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900,"
brand: "crucial"
price: "R$663"
currency: BRL
in_stock: true
reviews_count: 13
category: "Crucial"
url: https://www.desertcart.com.br/products/28362992-crucial-4gb-204-pin-sodimm-ddr3-pc3-14900
store_origin: BR
region: Brazil
---

# 1866 MT/s high-speed performance 4GB DDR3 SODIMM capacity Dual voltage 1.35V/1.5V efficiency Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900,

**Brand:** crucial
**Price:** R$663
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your iMac’s brainpower — because speed and reliability never go out of style!

## Quick Answers

- **What is this?** Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900, by crucial
- **How much does it cost?** R$663 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/28362992-crucial-4gb-204-pin-sodimm-ddr3-pc3-14900)

## Best For

- crucial enthusiasts

## Why This Product

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

## Key Features

- • **Blazing Fast Speed:** Boost your workflow with 1866 MT/s DDR3 memory, ensuring smooth multitasking and rapid data access.
- • **Trusted Reliability:** Backed by Crucial’s reputation and a 4.6-star rating, this RAM upgrade guarantees rock-solid stability and value.
- • **Effortless Installation:** User-friendly upgrade process with a perfect 204-pin SODIMM form factor designed for quick, secure fitting.
- • **Seamless Mac Integration:** Specifically engineered for iMac Retina 5K (Late 2015) for flawless compatibility and performance.
- • **Energy-Smart Dual Voltage:** Operates efficiently at 1.35V or 1.5V, balancing power consumption and performance for longer device life.

## Overview

The Crucial 4GB DDR3 PC3-14900 SODIMM module delivers 1866 MT/s speed with dual voltage support (1.35V/1.5V) in a compact 204-pin form factor. Designed specifically for the Late 2015 iMac Retina 5K 27-inch models, it offers a hassle-free installation and reliable performance, making it a top choice for professionals seeking a seamless memory upgrade.

## Description

CT4G3S186DJM is a single 4GB DDR3/DDR3L SODIMM module that operates at speeds up to 1866 MT/s and has a CL13 latency. It is dual voltage and can operate at 1. 35V or 1. 5V. It is Buffered and is non-ECC. It conforms to the industry standard SODIMM layout of 204 pins. This module is RAM upgrade is made specifically for the iMac (Retina 5K, 27-inch, Late 2015) iMac17, 1 that uses one of the following processors: 3. 2GHz Quad-Core Intel Core i5, 3. 3GHz Quad-Core Intel Core i5, or 4. 0GHz Quad-Core Intel Core i7. This particular upgrade may not be compatible for other models of computers. Please check for compatibility using the Crucial Memory Selector tool.

Review: Mac certified RAM, reliable, and at a great price from a company with a good reputation - I really don't have much to say, other then I bought two of these kits for my new 27" late 2015 iMac to get a total of 32 GB, and the computer has been rock solid. When I bought this ram it was selling for $109 a kit, and it was too good a deal to pass up to get. a full 32 GB of ram. The memory is extremely easy yo install on the iMac. 1. shut down the iMac from the apple menu. 2. disconnect all cables. 3. lay the iMac face down on a soft and stable surface such as a bed, or other such as a table with a towel over it. 4. Use a pointed object such as a pen, to gently , but firmly push the button located inside the power terminal to release the memory door. 5 Remove memory door and release the memory cartilage levers. 6. insert new modules making sure to line up the notch on the DIMM with the slot and press into place until it clicks. 7. lock the memory carriage back into place with the tabs, and replace ram door. 8. Reconnect iMac and power one. Don't be alarmed if the Mac takes a few seconds before the chime, as this is normal to test and calculate the new ram, the first time.
Review: 4GB Memory Card - Works in a Synology Diskstation Model DS218+ - Purchased this specific Crucial model with 4GB memory as recommend by other DS218+ users. Installed the memory into the DS218+'s second memory slot and upon power up the diskstation immediately recognized it and booted successfully. Verified the operating system now shows 6GB installed (2GB original plus 4GB new).

## Features

- 204-pin SODIMM
- DDR3-1866

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01775JF9M |
| Best Sellers Rank | #1,826 in Computer Memory |
| Brand | Crucial |
| Color | Multicolor |
| Customer Reviews | 4.6 4.6 out of 5 stars (608) |
| Date First Available | October 28, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 7 x 0.44 x 5 inches |
| Item Weight | 1.06 ounces |
| Item model number | CT4G3S186DJM |
| Manufacturer | Crucial Technology |
| Memory Speed | 1866 MHz |
| Product Dimensions | 7 x 0.44 x 5 inches |
| RAM | 4 GB DDR3 |
| Series | Crucial 16GB Kit (2 x 8GB) DDR3L-1600 SODIMM Memory for Mac |
| Voltage | 15 Volts |

## Product Details

- **Brand:** Crucial
- **Compatible Devices:** Desktop
- **Computer Memory Size:** 4 GB
- **Memory Speed:** 1866 MHz
- **RAM Memory Technology:** DDR3

## Images

![Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900, - Image 1](https://m.media-amazon.com/images/I/51zCRzd8S+L.jpg)
![Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900, - Image 2](https://m.media-amazon.com/images/I/615rujZ+9GL.jpg)
![Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900, - Image 3](https://m.media-amazon.com/images/I/61VJq5sfA8L.jpg)
![Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900, - Image 4](https://m.media-amazon.com/images/I/71QLSnS78UL.jpg)
![Crucial 4GB, 204-pin SODIMM, DDR3 PC3-14900, - Image 5](https://m.media-amazon.com/images/I/71v2HApUVAL.jpg)

## Questions & Answers

**Q: Can this be used in the synology ds218+ nas in place of their official (expensive) ram?**
A: YES!!! - I recently upgraded the memory on DS218+ to 6GB with this -  check pictures on my review https://www.amazon.com/review/R3EIEM3CRYZXQ6

**Q: Will these work with my brand new 5K iMac? Do the specs matter? And are these just as good as Apple's?**
A: Yes, they work just fine. I've got these for my iMac Retina 27" Late 2015 and they work perfectly. I've removed the factory 8 gigs and put 4x8GB and am now working with full designed capacity of 32GB. Never noticed any problems.

**Q: Hi, i have an imac 27inch, 5k, late 2015 with 2 sets of 4 gb ram each one. may i use 2 sets of 8gb in the two empty slots? is it possible this mix?**
A: Yes, this is possible and should work fine. However, it is most optimal to have the same RAM stick in every slot, or use only the two 8GB sticks.

**Q: If I want to max out memory in new 5k imac, do I need two 16 gb kits to replace existing 8? Thanks**
A: Yes. The 5K iMac has 4 memory slots which you can fill with 8GB each for a total of 32GB.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Mac certified RAM, reliable, and at a great price from a company with a good reputation
*by C***O on February 24, 2017*

I really don't have much to say, other then I bought two of these kits for my new 27" late 2015 iMac to get a total of 32 GB, and the computer has been rock solid. When I bought this ram it was selling for $109 a kit, and it was too good a deal to pass up to get. a full 32 GB of ram. The memory is extremely easy yo install on the iMac. 1. shut down the iMac from the apple menu. 2. disconnect all cables. 3. lay the iMac face down on a soft and stable surface such as a bed, or other such as a table with a towel over it. 4. Use a pointed object such as a pen, to gently , but firmly push the button located inside the power terminal to release the memory door. 5 Remove memory door and release the memory cartilage levers. 6. insert new modules making sure to line up the notch on the DIMM with the slot and press into place until it clicks. 7. lock the memory carriage back into place with the tabs, and replace ram door. 8. Reconnect iMac and power one. Don't be alarmed if the Mac takes a few seconds before the chime, as this is normal to test and calculate the new ram, the first time.

### ⭐⭐⭐⭐⭐ 4GB Memory Card - Works in a Synology Diskstation Model DS218+
*by T***T on February 6, 2025*

Purchased this specific Crucial model with 4GB memory as recommend by other DS218+ users. Installed the memory into the DS218+'s second memory slot and upon power up the diskstation immediately recognized it and booted successfully. Verified the operating system now shows 6GB installed (2GB original plus 4GB new).

### ⭐⭐⭐⭐⭐ This Crucial RAM is perfect match for 5k iMac
*by G***. on March 30, 2017*

Crucial is one of the best quality OEM-grade memory suppliers. I used this RAM to upgrade my iMac (5k 27 inch' late 2015 model) from 8 GB to 32 GB. This RAM is precisely matched to Apple's specs. It installs easily in this model and the Mac recognized it immediately. No issues whatsoever. My iMac is now a true powerhouse that can handle pretty much everything with zero slowdown. Great product. And Amazon's price was the best (I did a lot of searching across multiple online and retail vendors before making this purchase.). Highly recommend.

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-27*