Kingston Technology KVR13S9S8/4 4 GB 1333 MHz DDR3 Non-ECC CL9 204-Pin SO-DIMM Value RAM Memory, 1.5 V

Wanted to upgrade my 2012 iMac to give it a boost and hopefully get it to last a few more years.Saw this memory module and at a good price.Unfortunately I didn't check my computer spec closely enough, as the memory did not work when I received it (totally my fault for not checking). I later learnt that memory modules built after a certain date don't work with the earlier iMacs.Luckily - I have a Macbook Pro (newer than the iMac but takes similar memory modules - including the newer ones) - and thankfully the memory modules in laptop were older memory modules - so I put those in the iMac and the newer modules in the laptop. I was very lucky - but be warned if you're thinking of upgrading your computer.Overall the memory modules are great - not let me down and the computers are working just fine.

Just received the SODIMM module in the post and installed it - I can definitely feel difference in performance (operating plenty of programs at the same time) so thanks a lot!Here's a tip for those who might think their laptop just won't accept this memory module - just take it out and put it back in again, keep re-booting the laptop till it picks it up! I read a couple of negative reviews saying it won't work, but I'm guessing they might have just inserted it and assumed it's not compatible just because it doesn't work immediately.Here's what I had to do - I added on this module, the laptop didn't even boot, couldn't even get into BIOS. Then I removed the original memory and inserted this new one - booted with no issues. Then I added the original module in the second slot (where I'd inserted this new one originally) - and the system picked it up!

This is a bit over spec for my needs with regard to speed rating. But it fits easily alongside my existing 4gb module. It has transformed an 8 year old gaming laptop into a perfectly adequate day to day laptop for ordinary use. 8gb is what WIndows 10 really needs to work properly. I have also upgraded from a slower HDD to a fast SSD. An 8 year old laptop is no longer headed for the junk pile and continues to work well.

I had the same issue as many other people, where my laptop wouldn't even turn on with the new RAM placed in an empty slot; however as soon as I put the new RAM into the original RAM slot then put my old RAM into the empty slot it instantly recognised it and Windows picked it up straight away.

Needed more memory for laptop. Had to get son to install it for me, not that clever.

Great price and goods. I would recommend to anyone, especially when Amazon are doing some deals 5 stars again.

I had originally bought some similar Crucial RAM that failed when tested (failed row hammer test) and sent it back to be replaced with this.It passes the same tests that the Crucial RAM failed and has been working flawlessly since I installed it.

I have a number of Kingston products, and they always seemed solid performers. However this memory doesn't work with my 2010 i5 iMac. A deeper search reveals that some memory brands just don't work with a fussy Mac.

Assim que coloquei não funcionou de primeira, então fiz uma limpeza nos contatos da memória usando uma borracha e logo depois coloquei e funcionou! Além disso, o produto chegou antes do previsto e perfeitamente lacrado sem avarias.

ATTENTION, plusieurs commentaires disent que la barrette 4G est compatible pour un NAS Synology DS713+. C'est complètement faux, en effet, après avoir remplacé la barrette dans mon NAS, la mémoire apparait bien à 4 Go dans le moniteur de ressource, donc tout semble normal, mais en fait, la vitesse d'accès de la mémoire est très très lente. Si vous faites un test mémoire à l'aide du logiciel "Synology Assistant" (clic sur la roue dentée -> Activer les services avancés -> Test de la mémoire) puis clic droit sur le nom de votre NAS -> Test de la mémoire. Pour le module originel de 1Go le test dure une heure, par contre pour le mémoire de 4 Go, le test dure plus de 20 heures (!!!!!). Je l'ai remplacé par un module de 2 Go qui lui fonctionne parfaitement (test mémoire réalisé en 2 heures). 2 Go est le maximum pour un NAS DS713+Par contre, cela ne remet pas en question le module de 4Go qui est de première qualité.

This ram module was used to upgrade my old Synology DS412+ NAS to 4 GB which was starting to show its age. There are youtube help videos showing how to replace the ram in the NAS. Installation was quite easy. My biggest problem was sliding the housing off the NAS due to the cover tabs not releasing from the metal frame. Expect to do some cleaning while you have the NAS apart especially if you are like me and have been running it 24/7. Afterwards, the NAS fired up without any issues and I don't have any of the CPU high usage problems that some have had after ram upgrades in the past. The NAS appears to have a snappier response but I don't have any benchmarks to prove how much. For the low upgrade cost, I'm happy with the result.

Kingston es de las mejores opción y de las mas económicas en cuanto a memoria Ram se refiere, gracias a los kits de memorias se puede lograr expandir la RAM a casi todos los modelos de Mac y así poder darle más velocidad a tu Mac, combinadas con un disco duro sólido, le duras una nueva vida a tu Mac, me especializo en Apple Mac y en Amazon encuentro todo lo necesario para poder dar servicio técnico a mis clientes, algunos modelos de RAM solo se consiguen aquí en Amazon y con el servicio Prime me llegan a buen tiempo.

Upgrade with no issues.