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Rated Excellent
4.8 star rating
Free delivery over £50
to most of the UK
0% interest for 4 months
on purchases over £99
Custom PCs built fast
delivered in 4-5 days
3 year on-site PC warranty*
including parts & labour

FREE next day delivery on in-stock items over £50! Offer ends soon!

Crucial 8GB (1x 8GB) 2400MHz DDR4 RAM

CCL Code: RAM3639
Manufacturer Code: CT8G4SFS824A
| Manufacturer: Crucial

Key Features:

  • Voltage: 1.2V
  • Latency Timing: CL17
  • Speed: 2400MHz (PC4-19200)
  • 1 x 8GB SO-DIMM Memory
  • non-ECC Unbuffered Memory

Delivery Options (from £1.20)

Thursday 9th December via Priority Delivery

Tuesday 14th December via Royal Mail

Collection Options

Friday 10th December from Local Collection Point


inc VAT

Buying in bulk or need help? Email our Business Team.


More speed. More battery life. More memory capacity. Fuel your next-gen laptop.

In the ever-changing world of technology, any component more than five years old is usually in need of an update. At seven years old and counting, that's where DDR3 memory is at: laptops can only do so much with it. Since the introduction of DDR3 memory technology in 2007, processors have doubled in capability, SSDs have revolutionized throughput, and graphics cards have drastically increased frame rates, leaving memory as a limiting factor. With Crucial DDR4 SODIMMs, crush the DDR3 memory bottleneck and unlock a new standard of performance.

More Energy Efficient

Extend battery life by using less power. Operating at just 1.2V compared to 1.5V for standard DDR3 memory, Crucial DDR4 SODIMMs consume 20% less voltage than standard DDR3 technology. Crucial DDR4 SODIMMs also contain other efficiency features, for an overall power reduction of up to 40%.[1]

More Density

Pack more memory into your laptop than ever before. Crucial DDR4 SODIMMs debut in densities up to 8GB, and as DDR4 technology develops, modules are projected to hit 32GB — allowing you to install twice as much memory as you could in a DDR3 system. Since laptops only have 1-2 memory slots, high-density Crucial DDR4 SODIMMs allow you to overcome this limitation and install more memory for faster mobile performance.

More Speed

Load applications faster and run demanding programs without lag. Crucial DDR4 SODIMMs debut at 2133 MT/s —more than 30% faster than DDR3 modules.[1]

More Bandwidth

Effortlessly multitask between apps and empower your system to fire on all cylinders. Crucial DDR4 SODIMMs increase memory bandwidth by over 30%, allowing your system to handle more data at once. Crucial DDR4 SODIMMs are optimized for next-gen platforms, allowing you to maximize bandwidth.

[1] Product performance and efficiency improvements are noted as comparisons between DDR3 and DDR4 memory technology. As of May 2014, standard DDR3 memory achieved speeds of 1600 MT/s and operated at 1.5V, compared to DDR4-2133, which will operate at 1.2V. When voltage reductions and all other energy-saving DDR4 features are factored in, DDR4 modules are projected to consume up to 40% less power. As DDR4 technology matures, speeds and bandwidths are projected to respectively hit 3200 MT/s and 25.6 GB/s – twice what was possible on DDR3 technology.
[2] Limited lifetime warranty valid everywhere except Germany, where warranty is valid for ten years from date of purchase.

Main Features

  • Speeds start at 2133 MT/s
  • Increase bandwidth by up to 30%
  • Reduce power consumption by up to 40% and extend battery life
  • Faster burst access speeds for improved sequential data throughput
  • Optimized for next generation processors and platforms
  • Available in modules up to 8GB and kits up to 32GB
  • Limited lifetime warranty[2]


Memory Size 8 GB
Memory Type DDR4
Memory Speed 2400MHz
Designation PC4-19200
Memory Chip Features Single Rank
Memory Size (Total) 8 GB
Number of Modules 1
Memory Size (Individual) 8 GB
Pin Configuration 260 pins
Memory Package SO-DIMM
Bus I/O Configuration Unbuffered
Error Correction Non ECC
CAS Latency CL17


Voltage 1.2 V


Form Factor SO-DIMM Module


Warranty Limited lifetime warranty.

Key Features

Individual Module Size 8192 MB
Memory Modules Kit Size 1
Memory Standard PC4-19200
Memory CAS 17
Memory Voltage 1.2 V
Memory ECC No
Memory Buffered No
XMP Support No

Item Details

Manufacturer Crucial
Manufacturer Code CT8G4SFS824A
EAN 0649528776334
UPC 649528776334
Condition New

Warranty Information

Warranty Limited lifetime warranty.

Manufacturer Information

Manufacturer Crucial
Manufacturer Code CT8G4SFS824A
Questions and Answers

Do you have you a question about the Crucial 8GB Memory Module PC4-19200 2400MHz DDR4 Unbuffered Non-ECC CL17 SO-DIMM (Single Ranked)?

Q: Will this memory be compatible with my Dell Inspiron 13 5000. it is currently using one slot with 8GB DDR4 IRx8 PC4-2400T-SA-11
Post Answer
Q: Will this memory be compatible with a ASUS X550C Laptop.
Post Answer
4 / 5 55 reviews


3 months ago

Does exactly what I needed. Quick delivery. Thank you


4 months ago

Excellent service. No quibbles. Always in stock unlike manufacturers messing clients about for 3 works with procurement issues. Hands down recommended!


5 months ago

Upgraded the empty ram slot on my laptop. Noticed a decent speed increase and more system stability with more applications and browser tabs open :)

Ingvar Stepanyan

6 months ago

Great value - found it cheaper than on other websites, arrived quickly, and works well.


6 months ago

Great product at a fantastic price


8 months ago

Was exactly what I needed for upgrading my laptop, and was the cheapest option for it. Has worked well using two of these in dual channel, with no issues so far.

James Ross

8 months ago

Brilliant, very fast service. I would recommend this company.

Alan Johnson

8 months ago

Perfect for my laptop and was fitted within minutes of arriving. Certainly helps my video editing for Youtube when away from the desktop..


8 months ago

it really helps things to run better


8 months ago

Memory made a significant difference to the laptop running Windows 10 ( Up from 1x4Gb to 2x8Gb). Win 10 is very memory hungry and needs at least 8Gb. Was easy to install, took only 2 minutes to fit.

Ioan Marcel Dodea

9 months ago

Excellent product, easy to install


9 months ago

Arrived a few days earlier than expected but that's fine by me. Works perfectly, cheaper than alternative marketplaces. Would definitely recommend.

Aldo Fusciardi

9 months ago

Excellent product with a great price to boot, the memory module matched the original one exactly.


10 months ago

Very quick delivery too


10 months ago

Ordered it for my personal laptop.. Arrived right on time and easy to install. Excellent communication from CCL reg., order,delivery date. Very happy with the service. Will use them again in future.

Dr Ian Tulloch

10 months ago

Excellent service form CCL resulting in the product being delivered within 37 hours of ordering. After installation iof the 8GB memory my laptop, the improvement in processing time was very impressive. Excellent value for money.

K Spencer

10 months ago

Arrived very quickly. CCL Online are a pleasure to deal with. They will be my first go to for my next electronic purchase. Totally recommended them. Awesome service.


10 months ago

worked as described with no issues


10 months ago

Not totally sure I can give 5 stars on each category BUT I had been considering buying a new laptop as my HP ran like a dog, most infuriating. Anyway I went on line and enquired about Crucial memory, I was pointed by the site in the direction of CCL. 2 x 8gb was a very reasonable price so I thought I would try it rather than go through the angst of installing stuff and setting up a new machine just as I like it. It was well worth the money, I wish I had done it years ago Arrived as advised. Hardest part was getting the laptop apart, thank you YouTube


10 months ago

This was easily ordered, arrived very promptly, and sorted out my problem. This turned into a dream DIY job that all went smoothly. Slotted the memory into a Dell laptop very easily, and now purrs into action. slick service from CCL.


10 months ago

Excellant quick service


10 months ago

The product is exactly what it says, it meets expectations and its easy to install. Solid choice for upgrading your laptop if its running single channel.


10 months ago

product was well priced and shipped immediately. cheapest that we could find. thank you


10 months ago

turned up early, worked perfectly

Guitars rock!

10 months ago

The RAM upgrade worked perfectly.

Srinivasa Rao

10 months ago

Everything is as expected - it worked straight away, after inserting in the machine. I did not get chance to test performance by consuming all the RAM in the machine, but has no issues working with the existing memory.

John Lewis

10 months ago

Excellent price, very quick delivery and the ability to pay via Amazon makes the buying process so much quicker and less hassle. I highly recommend this company for the above reasons..

David McEwan

10 months ago

Does the job a a great price. only blot was the length of time it took the post office to deliver it.


11 months ago

Great service. Quick delivery at a reasonable price. Would definitely use again.


11 months ago

Good price, dispatched fast and boost to preformance of my Laptop, can't say much more cause that 's what it does.


11 months ago

Great product, fab price, fast delivery

Mind your damn business

11 months ago

Fast delivery in secure packaging, as usual items from CCL are quality products.

Mike D

11 months ago

Ordered via CCL Computers, very impressed with the prompt service and the memory so I've just ordered another.

Eric Kardasz

11 months ago

Was looking to upgrade my Intel NUC7 to more ram - works perfectly fine with memory that was already in. no errors. installation as easy as always with Ram. Can happily recommend!


11 months ago

Crucial memory always a well trusted manufacturer, good value for money

Mr & Mrs Hughes

11 months ago

quick delivery well packaged work first time

Philip Jones

11 months ago

Excellent product, excellent service, and quick delivery. Thanks very much.


11 months ago

great company,fast shipping and great value for money. will use again.


11 months ago

tripling memory from 4 to 12 gb made a significant performance improvement especially in M/S Edge

Lawrence Savill

11 months ago

Brilliant, not only has it changed my laptop totally, have significantly cut down on toast and coffee I used to make while waiting for it to boot up.....


12 months ago

Upgrade from 4GB Installation was easy with good instructions on their web site. Once installed the computer was a lot quicker and smoother in its performance.


12 months ago

It arrived on time, and works perfectly. I couldn't be more pleased with my purchase.

Andis Zari

12 months ago

Great product. Works just as it should. Good value for money


12 months ago

Fantastic memory card, fitting in my laptop perfectly, with ease ( for a non-techie). Now my laptop works so much faster - I'm very happy. Great value for money.


12 months ago

all seems good, it was debatable if my laptop could take 12GB total RAM, depending on what I read, but I bought the 8GB extra rather than the 4GB and it's been recognised by my PC


12 months ago

The website had all the required information to choose the correct memory, prices were good and delivery was fast. What more do you need

Mr Rob Brown

12 months ago

Made a huge difference to the performance of an old laptop. So much better than having to buy a new one. Analysis tool made everything very easy, with the cost and delivery making it pointless to look anywhere else.

Tasneem Ahmed

12 months ago

Very good product.

Raymond Foulkes

November 2020

Bought this RAM memory to upgrade my HP laptop. Difficult to open the laptop, but that apart, it fitted easily was immediately recognised and has worked well for the last few weeks.


November 2020

Is a very good ram to upgrade your laptop

Jon Bessell

November 2020

Does exactly what you'd expect at a great price

Mr Price

November 2020

Arrived very quickly, and worked perfectly!


September 2020

The additional memory has made a big difference to my laptop. Previously it was hanging up and going slow all the time - now everything works instantly which is great.

Arlee Cayle Serrano

August 2020

Delivered early and quickly. Easy installation and helped my laptop run faster.

Piotr Kepski

July 2020

Good performance. Easy install. Works perfectly.

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