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

I have ordered 16GB kit for my 2017 IMAC and installed it the other day and everything is working fine. The installation was very easy and it took me only 10min to install the memory and my IMAC now has 24GB RAM. So far everything is working fine! Very solid product!

It simply works with no problems.

I bought 2 sets of this ram for my iMac. 1 set worked great and the other didnt work at all with my iMac. The number CT2K32G4S266M on the package did not match that number on the cards included in that package. How that happens is beyond me but I have a refund and will try again to get the correct cards. When the product is the right thing they are great.

Works well and as expected.

Installation was easy and easily identified in the BIOS. People looking for upgrade their system should also pair this RAM with either an SSD or a M.2 SSD, which will instantly give your PC years of service.

I purchased 4 x 8GM RAM to speed up my computer. After reading about the problems other people had, I decided to do the upgrade by the book, based on the Apple specs of my computer, and not on what independent outside sources wrote about how much RAM my computer could accept. For the 3 GHz processor my iMac has, Apple specifies two possible RAM upgrades-to 16 or 32 GB. They infer that all the RAM capacities should be identical. I was careful to ground my self and the computer using an ESD mat and bracelet. The installation was without hassle and the improvement in my computers performance is significant. This product works!

These RAM chips worked in my base model 2017 iMac 27. I placed the stock apple chips in the top two slots, and the crucial chips in the bottom two. I never experienced any problems.

Reasonably priced upgrade for MAC memory.

The package arrived very quickly and the RAM itself was super easy to install. In 5 minutes I upgraded from 8GB of RAM to 64GB. And saved a lot of money. Highly recommend!

Got these to expand the memory in my 2017 5k iMac. Unlike other reviews, my machine works best when I left the OEM memory in their original slots. Otherwise they work just fine, fit perfectly, and arrived in great condition.