Brand | Crucial |
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Manufacturer | Crucial |
Series | DDR4 2666 MT/s SODIMM DRAM |
Form Factor | 260 pin_USO-DIMM |
Item Height | 1.1 inches |
Item Width | 0.43 inches |
RAM | 4 GB |
Memory Technology | DRAM |
Computer Memory Type | DDR4 SDRAM |
Memory Clock Speed | 2666 MHz |
Voltage | 12 Volts |
Wattage | 1000 |
Are Batteries Included | No |
Manufacturer | Crucial |
Item model number | CT4G4SFS8266 |
Product Dimensions | 6.86 x 1.09 x 2.79 cm; 8 Grams |
ASIN | B07HP78DZ5 |
Crucial 4GB DDR4 2666MHz CL19 1.2V Non-ECC SODIMM, SO-DIMM Notebook Memory CT4G4SFS8266
List Price: | S$65.50 |
Price: | S$48.00 |
You Save: | S$17.50 (27%) |
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- Enter your model number to make sure this fits.
- Optimized for next generation processors and platforms
- Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology matures
- Increase bandwidth by up to 30 percentage
- Reduce power consumption by up to 40 percentage and extend battery life
- Faster burst access speeds for improved sequential data throughput
Product information
Capacity:4GB Single Rank | Style Name:2666 MT/sTechnical Details
Additional Information
Date First Available | 18 June 2019 |
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Customer Reviews |
4.7 out of 5 stars |
Best Sellers Rank |
7,368 in Electronics (See Top 100 in Electronics)
91 in RAM |
Is Discontinued By Manufacturer | No |
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Product description
Product Description
CT4G4SFS8266 is a 4GB Single Ranked DDR4 Notebook module that operates at speeds up to 2666 MT/s and has a CL19 latency. It is an Unbuffered SODIMM. It conforms to the industry standard DDR4 SODIMM layout of 260 pins and is compatible with systems that take DDR4 2666MT/s SODIMM memory.
Set Contains:
1x 4GB DDR4 2666MT/s Laptop SODIMM Memory
The fast, easy way to improve your laptop’s performance
There’s an easy cure for a slow computer: more memory. Designed to help your system run faster and smoother, Crucial Laptop Memory is one of the easiest and most affordable ways to improve your system’s performance. Load programs faster. Increase responsiveness. Run data-intensive applications with ease, and increase your laptop’s multitasking capabilities.
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Make everything on your computer fasterMemory is a component in your computer that allows for short-term data access. Since your system’s moment-to-moment operations rely on short-term data access – loading applications, browsing the Web or editing a spreadsheet – the speed and amount of memory in your system plays a critical role. Load apps in seconds by increasing the speed of your memory and installing more of it. |
Multitask with easeIf you’re like us, you use your computer to do a lot of things at once. You might be editing a document, while also looking at pictures and browsing the internet. This naturally leads to a performance problem: every app you’re running requires memory and competes for a limited pool of resources. Overcome this by installing high-density modules in each memory slot for seamless multitasking. |
Install with ease – no computer skills requiredWith just a screwdriver, your owner’s manual, and a few minutes of time, you can install memory – no computer skills necessary. Just watch one of our three-minute install videos, and we’ll walk you step-by-step through the process. Don’t pay a computer shop to do something you can do in minutes! |
Maximize the value of your systemAt a fraction of the cost of a new system, a memory upgrade is one of the most affordable ways to increase performance. Get more out of your laptop by giving it the resources it needs to perform. |

Micron quality – a higher level of reliability.
As a brand of Micron, one of the largest memory manufacturers in the world, Crucial Desktop Memory is the standard for reliable performance. From the original SDRAM technology all the way to DDR4, we’ve engineered the memory technologies that have powered the world’s computers for 40 years and counting.
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Customer reviews
62 customer reviews
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No problem encountered after installing.
The trick, though, is to know how to remove the old RAMs.
There is a small clip at the side. Just press it and it is released, then pull the RAM out.
To install, push the RAM into the slot, then press it down until the clip clicks in place.
In comparison, replacing a hard disk is more tricky.
Sometimes the hard disk is covered up in a tape, so you cannot see it.
You have to remove the tape to reveal the hard disk.
I encountered this when I replace the hard disk with a new SSD.
Thankfully, all went well.

By Jowsy on 5 December 2019


Update: items working. Please be careful with liquid spills next time.

By Amazon Customer on 3 October 2020
Update: items working. Please be careful with liquid spills next time.


By Alan Chong on 4 July 2020
