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

My 2017 IMAC failed to boot while this memory was installed. I tried moving the memory around to different slots. 1& 2, then 3&4, then 1&3, then 2&4. Nothing worked. I ensured the memory was properly installed. After I removed the Crucial memory the mac now boots properly.

These memory sticks arrived on time and were exactly as described. Their installation instructions (referred web video) worked perfectly, and my iMac fired up right away after installation. Very pleased.

I just returned the OWC 128gb RAM and purchase this one. No kernel panic again. I am so Happy.

If youre wondering, yes, these can be added to the factory sticks that your machine came with - in my case adding these 32x2 gave me a total of 80GB and made a real difference.

I have used Crucial memory cards with multiple iMacs over many years without a single failure.

great performance!

Excellent packaging, great customer service, very easy to install. Highly recommended.

Excellent product for my wifes 27in new iMac

Easy to Use, Work Well

Exactly what is described. Gave me the most RAM Ive ever had in a computer and works great!