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

Wow! After 1 full day of frustration with the Corsair RAM I decided to give up and order this instead. No hassle. Put it in empty slots 2 & 4, with OEM RAM in 1 & 3. Took 17 seconds to initialize on my 2017 5K iMac and boom. Should have ordered this from the very beginning!

Easy to install, great value for the money, what else do you need :)

I installed these in my iMac 27 2017, the are running fine so far with stock RAMs

I bought Crucial 32GB Kit (16GBx2) DDR4 2666 for my iMac Retina 5K 2019, removed original ram and placed 3 sticks. first thing what I mentioned boot speed slowed down, I tried to replace to another slots but result is the same.

This item was easy to install and was a great improvement to my iMac. Now, Im running memory of 40 GB 2400mhz DDR4. Much need memory to run some of my Adobe software for my Graphic Design classes.

It works!

Perfecta

I got a lot of problems with this computer since i installed those 2 sticks. Computer is frozing all the time and have to restart manually

Just as good as a factory upgrade. You can’t go wrong with Crucial!

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.