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

Works nicely with my new iMac

Well, almost. The biggest problem was getting the cover off the back of the monitor on my iMac. The release button is hidden under the power cord plug. Even when pushing the release button, you still have to grab under the cover edge with a fingernail to get it to budge. Once the cover was off, the the new memory sticks just snapped right in. Powered it up and now 48 gig instead of 16 gig. No need to shuffle around the existing 2 sticks. It just worked flawlessly from the first time.

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

Works great! No problems.

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.

Easy to install. System recognizes the new ram instantly on first boot after install. Works great to improve speed and comes in nice packaging. Much cheaper than Apple ram.

Easy to install. Much less expensive then getting it installed by Apple

Great value and easy to install

Simple to install the memory into the empty slots on the 27 iMac and you have 40 GBs of Ram. Just make you can feel it pop in. Check the Apple menu, About The Mac, Memory 40GB. Easy and perfect.

Super easy install and took 2019 27 iMac from 8Gb to 40Gb in less than 5 minutes. Fully compatible.