Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory

I bought an 8GB RAM (part number: CT8G4SFRA266 2666MHz CL19 ) to extend the RAM of my Synology DS220+ NAS. Although Synology says the system supports up to 6 GB of RAM (2GB is included in the original box), the system actually supports more than that. You can add at least another 16GB of RAM to use as a cache to boost up the performance. I have read the previous comments – some claimed that CT8G4SFRA266 does not fit with Synology. This is not true. Mine works very well on DS220+. There are two possibilities why some people found it was not working: 1. They didn't correctly insert the RAM. You will need to first push the RAM very hard until hearing a clicking before lowering the RAM to sit on the RAM slot. There are many posts online where people claim the RAM doesn't work just because they didn't currently insert the RAM. 2. There are different variants of the Crucial memory "FRA266". Upon receiving the RAM, you will find that the RAM has another four digitals part number printed on the tag. Mine is shown in the photo, which is C8FR. This means the RAM is built using 8x 1GB memory cells, where both sides of the RAM have memory cells. This will work on Synology. This part number can also be C8FJ, which will also work too. However, if this part number is C4FE, it means the RAM is built using 4x 2GB memory cells, where the memory cells are sodered on just one side of the RAM. In this case, it won't be compatible with Synology. Unfortunately, you will not get to see this part number until you receive the RAM. I suspect this applies to the 16GB RAM, too, as there are some people online saying it works for Synology while others saying it doesn't. Overall, I am pleased with this purchase.

The 8GB memory I purchased has been installed in my NAS server.. I had no difficulties installing the module. The NAS has accepted the memory module without issue and has been running and performing many intensive tasks to prove it is robust and safe to use in this critically demanding task. The module deserves 5 stars

I got it for under twenty five pounds , it was for a laptop upgrade , a laptop that came with only 4GB Stick , now it has 12GB . The CL19 latency at this speed is not amazing , I run a kit at home that runs at 3600MHz with CL16 . Over all , fantastic cheap upgrade for a cheap laptop :) , will not break the bank.

let's start with the negative. the packaging from crucial has got cheaper and cheaper - but this is also reflected in the price as that has got cheaper, but i wouldn't mind something a little more than a flimsy little plastic box. but now the good - plug it in, boot up and away i go. no messing around in the bios, no issues, it just worked. what more could you ask for!

Over something getting on for 30 years of building (and occasionally breaking!) computers, a few companies have really stood the test of time when it comes to supplying top quality gear. Crucial is one of those companies and should be in anyone's (very) short list of memory suppliers. This was purchased to to expand the memory of an older Dell Vostro laptop from 8gb to 16gb. This simple upgrade has made the user of the laptop much happier and given it a new lease of life. They were convinced they needed a new laptop until I persuaded them to give this a go! Unless you are a gamer pushing the limits of your machine, a memory upgrade should be the first option if you think it is time to replace the computer. Crucial have a nifty system checker program on their website that will tell you what you need and what the system can support. Strangely you can then usually buy the same memory cheaper on Amazon! Oh and there is no great skill required to upgrade the memory in a pc/laptop. A screwdriver and a modicum of common sense will usually suffice, but in addition there are loads of videos to guide you through it.

Easy to install and works fine. Used to upgrade a pretty basic laptop, which now works much better than it did. Probably not what you'd want for your gaming rig, but fine for what we did with it

This was a lifesaver when I got a job working from home. Laptop came with just 8GB. When performing high volume data analysis tasks that just isnt enough. This RAM was @ a great price and easy to install. It allows me to work much more quickly and efficiently , good find

I have a Synology DS720+ NAS, and I wanted to upgrade its memory. I have tried several memory modules before, but they did not work. Finally, I bought this memory module: "Crucial CT8G4SFRA266 8GB DDR4 2666MHz CL19". I have installed the RAM module and made a memory test using the "Synology Assistant" desktop tool, and everything is fine with no errors. So, I confirm it is working, please see the photos. PS: 8 GB additional RAM + 2 GB built-in memory = 10 GB, which is fine. Don't go after the 16 GB module unless you really require such an amount of memory.

Good memory for great price! Fits even in Synology DS423+ (expands memory to 10GB).

Ich habe den Riegel gekauft, um meine DS220+ von 2GB auf 10GB upzugraden. Denn da das zugrunde liegende Linux RAM als Cache nutzen kann und die DS220+ keinen SSD-Cache unterstützt, ist das eine ganz nette Möglichkeit, die Geschwindigkeit etwas zu erhöhen. Und für spätere Anwendungen (VM oder bei der 220+ wohl eher Docker) sicherlich auch nicht verkehrt. Der RAM funktioniert und bietet für weniger als den halben Preis des Synology-Riegels gleich die doppelte Kapazität, die meine 220 auch vollumfänglich akzeptiert. Offiziell unterstützt sie zwar nur 6GB, aber selbst Intel gibt schon 8GB für die CPU an und im Netz finden sich viele User mit 18GB RAM. Adressieren kann die CPU also sogar noch mehr. Ein Hinweis: Der Crucial-RAM wird offensichtlich in 2 Ausführungen produziert und es gibt vorab im Prinzip keine Möglichkeit zu wissen, welchen ihr bekommt. Die erste Ausführung hat 4 Speichermodule auf der beklebten Seite und die RÜckseite ist nackt (hinter der Produktbezeichnung findet ihr noch 4-5 weitere Stellen mit einer 4 drin) und die zweite Ausführung hat beidseitig je 4 Speichermodule (hinter der Produktbezeichnung befindet sich noch eine 8 -> z.B. CT8G4SFRA266 .C8JE). Anscheinend funktionieren überwiegend nur die doppelseitigen Speicher mit der 8. Ansonsten: Bester Preis für 8GB Ram, gute Leistung und mein NAS fluppt auch. Für die Inkompatibilität der einseitigen Riegel in den Synologys kann Crucial wohl eher nix. :-) 5/5

I ordered 2x8GB ram 2666 speed, they actually worked perfectly for my old laptop so now it can handle more work. Shipping was fast 1 day delivery which is amazing.

Bought it to upgrade my ram on my gaming laptop to 16G. Been using it for a very long time and never had any issue with it. worth the purchase

O produto chegou em perfeito estado, bem embalado e com uma proteção para evitar que quebrasse durante o transporte. Demorou 10 dias para chegar. Instalei no meu notebook Dell e está funcionando perfeitamente. Até agora, só alegria, e espero que continue assim. Comprei para aumentar a capacidade de memória do meu notebook, pois sou desenvolvedor de software. Recomendo este produto, podem comprar sem medo.