Crucial 64GB Kit DDR4-2666 CL19 (CT2K32G4SFD8266-DE) - Reviews
(4.8)
420 reviews
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For Crucial 64GB Kit DDR4-2666 CL19 (CT2K32G4SFD8266-DE), 420 customer reviews collected from 1 e-commerce sites, and the average score is 4.8.
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26.5.2018
Purchased these to upgrade the standard 8GB of ram in my new 27” 5K IMac as I use ram hungry programs like Lightroom and Photoshop.With just the standard 8GB ram the programs can Lag a lot but I have noticed a massive difference after installing the Crucial 16GB ( 2 x 8GB) bringing me upto 24GB ram.There is a lot of confusion as to what way to configure the ram slots. I have the 4gb in slots 1 & 3 ( which is also where Apple had them pre configured) and the new 8GB in slots 2 & 4 to get optimum performance.EDIT*********I have since purchased a 2019 5k iMac 27” 3.0GHz 6-Core and tried to use the 16gb 2400 MGH and it was down throttling the ram.So I purchased the 32 GB kit (16gb x 2) (DDR4,
2.7.2020
I bought this 32GB kit to install in a Mac Mini 2018. Considering the outrageous price that Apple charges for RAM upgrades, I ordered the base RAM configuration at 8GB and thought I’d have a go at upgrading it myself.It took me a little while to get around to, but the RAM seems to work well and the user experience is much better with 32GB compared to the stock 8GB. With 8GB installed, it did hang from time to time but now it’s very smooth. I run some windows programs via parallels and have now dedicated 8GB to the virtual machine. With several windows 10 and Mac applications running, I’m left with about 10GB free so I would recommend anyone wanting to run applications through a VM,
7.6.2019
As I am an utter mingebag I spent £198 on a FreeDOS HP 255 G6, mainly because it was £198 for a brand new lappy without the gopping horror that is Windows on it.Fast forward to the point in time (now-ish...) that I decided to upgrade the RAM; as prices and specifications are confusing, to say the least, all I knew was that I needed DDR4 SODIMM, 4GB already installed, running at 1833mhz, and I knew I had a spare slot, so I thought I'd kill two birds with one stone and get some RAM running at 2400mhz as the motherboard seems to support it.Having ordered and installed these, I subsequently discovered that my laptop was running perfectly fine with these,
10.7.2020
I was a little worried as I was installing this 16GB RAM stick with a 4GB RAM stick at the same time in my Acer Nitro 5 as I thought that because there is such a big difference in the memory size that it might not work well. Although it has turned out to work perfectly. As long as the speed of both of the RAM sticks is the same and both of them are DDR4 you should be fine installing them at the same time. Both of my sticks are DDR4, and 2666 MT/s but are different brands and there was absolutely no trouble. If you have different speed sticks they still should work but the stick with the higher speed will slow down its performance to match the speed of your slower stick.
2.11.2019
I have since purchased a 2019 5k iMac 27” 3.0GHz 6-Core and tried to use my old 16gb 2400 MGH which I was using in my 2017 5k iMac and it was down throttling the ram.So I purchased the 32 GB kit (16gb x 2) (DDR4, 2666 MT/S, PC4-21300, Dual Rank x8, SODIMM, 260-Pin) Memory and it works fantastic bringing my ram upto 40GB ( 32GB Crucial and 8GB Apple).Absolutely no Lag whatsoever when using multiple tasks, I have Adobe Lightroom and Adobe Photoshop running along with YouTube video and Final Cut Pro and it has not slowed in the slightest. These are all ram hungry programs.1 more thing I see a lot of questions about.Apple specify in their memory specifications PC4-21333 and these Crucial are PC4-21300.Do NOT worry,
19.5.2020
Really easy to install memory, just check via the "About this Mac" page for instructions and confirmation of what memory type your computer takes.They come in a stiff blister pack, so they are well protected in transitI was pleased to note that I did not need any special tools to install in my 27" iMac 2017I did read a note on another post that is matters as to what slots you put different pairs of memory, so if you are having difficulty in re-starting your computer, just check which slots they are in, I think I put these into slots 2 and 4, with the original 2 x 4Gb chips in slots 1 and 3 - but check with the manufacturer if you have issues because this memory definitely works.
16.3.2018
These 2 crucial ddr4 ram successfully work together with my previous 2 Samsung 2400Mhz DDR4 RAM in my DELL precision 7520 workstation to form 32GB of RAM. But I had to experiment with which slots they go into to get them working together because when I simply add these Crucial RAM to the empty C,D slots, the laptop indicated that 'invalid memory installed' (battery indicator LED flashing 2 amber followed by 5 white light). In the end, I installed the RAM in a way that A and D slots are a pair while B and C are a pair, then the system successfully booted up which was magical. I did know that the slots have some certain pairing pattern though. The system reports 32GB ram in total without any problem.
6.2.2018
Bought this to upgrade my Dell inspiron 15 7000 gaming laptop from 8gb to 16gb ram and i have to say it works perfectly. Packaging came sealed and Installation was as easy as unscrewing the bottom of the laptop, unplug the battery, insert the ram into the empty slot and away we go. Turned on the laptop and bang we have 16gb ddr4 2400 ram running in dual channel mode. So I highly recommend it hence the 5 stars. Just a side note to any non techies out there if you are upgrading ram and want to add to any existing ram you have got, buy ram that matches your existing ram in size and speed in order to get the max benefit for example i had a 8gb ddr4 2400 pre-installed hence why I went for this
12.9.2019
I’ve had issues in the past with RAM but my Mac Mini 2018, accepted these with no hesitation. So far so good. It even improves my Geekbench score above the average for my build.Whilst RAM is not cheap, I have given 5-Stars for value for money, because compared to the £500 or so Apple wanted to charge for 32GB config, this is a bargain! I even found taking apart my new overpriced Mac mini to install these, easier than I expected. If you are going to attempt to install yourself (and not use an authorised Apple centre), make sure you have the correct tools, the right tutorials and even watch beforehand to be comfortable you can do it.I used the iFixit beginners kit for this installation.
16.4.2019
I recently purchased a laptop with the intention of upgrading its Ram to 16gb from 8gb.I had a look around to find an affordable DDR4 SODIM and struggled before checking Amazon Warehouse Deals.This was a returned item with some VERY minor imperfections. Managed to knock a chunk off the price for a small scratch on the label...Something I’ll likely never see again!Very easy to install in my laptop. Booted up and all showing correctly in CPUZ. Ran some tests to ensure no faults or errors and happy to say it was like new!Very happy with this purchase. Well worth checking out Amazon Warehouse Deals to save yourself a little extra if thinking about buying new!
22.5.2020
Very nice product. Works as its supposed to. Make sure you get a compatible stick for your laptop/PC. Its quite fast also, noticed significant improvment over my original 4Gb laptop. Also make sure you double check your original sticks speed, I didn't (im a real noob when it comes to this stuff, not much experience) and as such the RAM speed/frequency (Mhz for the module i had was 1300mhz or so, while this is 2400mhz) was down clocked to the slower stick speed which sucks. So, make sure you research properly (use CPU-Z or something) and dont make the mistake I did....eitherway it still works so its fine for me.
6.7.2020
This was definitely worth the money. I have a 2017 Dell Inspiron 13 5000 2in1 with the backlit keyboard, it was becoming so slow and unbearable. It had 4GB of ram and a hdd. first thing I done was uninstall google chrome, that alone sped up start up time then I added an extra 4GB RAM so I would have 8GB. That made the laptop feel much faster! After that I thought its able to be faster so I purchased a WD 2.5inch internal SATA SSD to replace the hdd. I now have VERY fast laptop, altogether I spent just over £50 on RAM and an SSD, now compared to spending £800+ on a new laptop it obviously made sense, great buy!
16.12.2019
My laptop memory arrived promptly, was packaged enough to protect it (RAM held in a robust plastic case itself in a small Jiffy bag) and was clearly labelled.I rate Crucial very highly, having purchased components for at least 20 years and I’ve never had a problem with the kit. Upgrading my HP laptop was a fiddle but I don’t hold the memory provider responsible for this. In fact, the clear information Crucial provide online ensures you get the right part for the system. I have now doubled the amount of RAM for less than £30. I shudder to think what I’d need to pay the manufacturer to achieve the same.
1.7.2020
It was easy to install, I forgot to disconnect the battery but luckly didn't have any issues.Once I restarted the Dell Xps I got a bios notification of the memory being changed and the system did a test to see if it's compatible. After this step I didn't see that message again and system worked perfectly.I use the laptop for Lightroom and Photoshop and it's always using 16gb ram, rarely going over. Did some speed test before and after and it's not a big difference. Maybe it wasn't the best upgrade for foto editing, I just wanted to make it future proof. The next step is to get the 2TB ssd :D
13.1.2020
My Dell XPS 15 9550 is almost 5 years old now, but it is still a great machine!Having said that, I was having some memory issues as my laptop had 16GB and lately, I had to run a few Docker containers locally that pushed the memory to the limit.I contacted Dell and bought 32GB of original Dell memory but that had a few issues in my model and I ended up returning the RAM.I then purchased these and have been using them for the last couple of months with no issues at all (I have even successfully ran the thorough memory test).It gave new life to my laptop and I couldn't be happier!