Crucial RAM 64GB Kit (2x32GB) DDR4 2666 MHz CL19 Memory for Mac CT2K32G4S266M

I have a 2017 27 iMac and these worked right from the install. Much faster now...not that it needed to be, but thats just me wanting a killer mac.

iMac working great with the additional memory.

Holy Multiple Windows at the same time Batman!!!!!!!! :). Wooooow!!!!! Worked as advertised :)

Easy install for new 27 iMac. First attempt worked perfectly. Saved a lot of money doing it myself after purchase.

Excellent memory upgrade for an iMac at a good price. For many years I have depended on the Crucial brand for good quality.

Works Perfectly!!!

As always, Crucial is the best all around brand for Apples (upgradable) computers. Crucial is owned by Micron, a company that Apple themselves uses as an OEM supplier. If youve ever pulled RAM out of a Mac before, you might have seen Micron on the labels. Crucial supplies their own branded components that youd never see inside as OEM on a Mac, but the RAM itself is Micron underneath the Crucial label. Its the brand I always trust most with RAM upgrades on a Mac. Its not the cheapest, and is far from the most expensive. But it is the most dependable. And trust me, you want dependability if youre going to go through the hassle of upgrading the memory on a 2019 iMac.

Like many others it didn’t work with the first installation but just pulled them out, changed positions and it was fine. 5 minutes. Doubled my ram from 32 to 64 and now I can run the newest Photoshop without any issues. The first 32 I installed two years ago still working well, but with every PS and affiliated program upgrade it seems I need to crank it up.

My computer is alienware 17R5 whose original configuration is only 8 GB, which leads me to play games and work in a very caton. After more than a month of use, he really solved the problems I met. The key is the cheap price.

Buy -> Install -> Forget.