Crucial 8GB Single DDR4 2666 MT/s (PC4-21300) SR X8 SODIMM 260-Pin Memory - CT8G4SFS8266

I am very please with this ram stick. I just popped it in to my empty slot in my MSI GF65 thin and it worked right away upon rebooting. Now I can run some more resources heavy games :-). 10/10 would recommend

El producto fue instalado correctamente y hasta el día de hoy, no he tenido inconvenientes, amplío el espacio de RAM de mi Laptop y trabajo con más comodidad.

See photo for Crucial ram spec. number. Initially the install did not work — black screen , no boot up - with the , as factory installed Apple 4gb ram in the original 1 and 3 slots . And the 2 new 8gb Crucial in the 2 and 4 slots . Note number 1 slot is on the bottom , number 2 next , with #4 at the top . As per a tech site where people had the exact same problem with the 2019 Apple iMac 27” , —- adding the 3rd and 4th ram — no screen boot etc. after adding new ram to the existing ram . What did work was to leave the Apple 4gb ram in the 1st slot . Place the two new Crucial 8gb. in the #2 slot and # 3 slot and placing the other Apple 🍎 4gb. ram in the top #4 slot . Note , you will have to remove the one Apple 4gb from the #3 slot and move it to #4 slot at the top position . To remove the existing ram I used the blunt end of wooden chopsticks, or use a wood pencil to gently push up one side or edge of the ram only a tiny bit then the other side , then pull the ram out with your fingers . Also the ram has a notch closer to the left side of center of the ram . This notch will be on your left as it faces you and when you install it in the slot . Press firmly , you will feel it seat with no movement after. After your iMac boots up , check your memory and it should show all 4 ram and the gbs listed too. Click on the Apple 🍎 upper left screen for this info.

Crucial will say differently, but I, and other users, have found that the 16GB (8GBx2 / CT2K8G4SFS8266) and (16GBx2 / CT2K16G4SFD8266) kits will function fine when installed in a 2019 iMac.Their official recommendation is for the CT2K8G4S266M and CT2K16G4S266M, respectively.Compare the given specifications for the modules with the "M" suffix, and those without, and one will find that the only apparent differences are that the M modules are "lead free • halogen free • for Mac." The "M' parts also aren't as widely stocked, and cost a little more.But in all the major respects, they are identical:SO-DIMMDDR4PC4-21300CL=192666 MT/SUnbufferedNon-ECC1.2 VoltThose characteristics conform to the ones given by Apple on its memory specifications page (HT201191).Further research reveals that the 2018 Mac mini and 2019 iMac utilize the same type of memory, as other vendors cite their modules as being compatible with both, and confirmed by comparison of parts installed by Apple at the factory.Yet, for unknown reasons, Crucial sanctions the non-M modules for the mini, but not the iMac, and calls for unique parts for the latter.Some may not feel comfortable going against Crucial's recommendations, and Amazon's guide provides no help, but for others, a preponderance of evidence suggests that the 8266 modules will post no problems when used in a 2019 iMac, and the the special M modules may not be necessary.Either option, and other third-party memory modules will still provide relief from the exorbitant prices Apple charges for memory upgrades.TL;DR -- the SFS/SFD8266 modules work with the 2019 iMacs.

tl;dr, review title + turn computer off completely and unplug your computer before upgrading your ram b/c some tutorials won't remind you to do that when you install ram into your computer on your own. just closing the computer will not do anything.I got 1 ram card, which came in one of those cheap little plastic packages that everything comes in these days and was mailed in a small parcel. i installed the ram myself, and it works well, as expected from something made by crucial.I own the ROG Zephyrus G14 that comes with 8gb of ram soldered to the motherboard. It has one upgrade slot for an additional 8gb of ram (i believe the 16gb model is the same: 16gb soldered onto motherboard and 1 open slot, but I'm unsure of whether you can put a 16gb ram chip in the slot or if it can only be 8gb).since most highly demanding games can, but barely, run on 8gb, i opted for another 8gb of ram. i've done ram upgrades before, but for those who haven't, there's a lot of good videos out there on youtube that show you how to install a new ram chip into an open slot (or conversely, take a ram stick already in your computer out of a slot, and put in a new ram stick in). some videos won't say as much, but ALWAYS turn your computer completely off and unplug it before performing any kind of upgrade on it. you can fry the whole computer doing that or electrocute yourself.

Purchased two 8GB SODIMM memory modules for HP 15 Laptop based on recommendations from both HP and Crucial that a memory upgrade from 4GB to 16GB was available for this model. On opening the case I found only one memory socket had been soldered to the motherboard. Returned the second memory module for refund, but had to pay ~$3.50 postage, otherwise I'd have given 5 stars for "Value for money". The upgrade from 4GB to 8GB solved the problem of slow response time from the computer that plagued it since it was new. SystemInfo.exe reports only 8024MB "Total Physical Memory", instead of the 8192MB expected, otherwise I'd give 5 stars for overall rating.

Fit like it said in my Wife's New Dell Inspiron.No errors and was able to bump the laptop up from 8GB to 16GB installing this in the second memory slot.Recommend A++