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.

I recommend this product due to ease of installation and value for your money.

I have the Mac (Retina 5K, 27-inch, 2017) 3.5 GHz Intel Core i5 and this chipset was easy to install. It took me all of 5mins.

Most like: easy installation. Recognized immediately. Brand reputation. Least like: increasing cost of memory

Definitely improved the performance of my iMac. Only took several minutes to install.

I bought the CT2K8G4S266M as suggested by crucial and it is perfect. Install was flawless (thanks apple) and ram is great! Instantly recognized on boot up and Mac is never lagging or hanging now. This is the ram to boost your iMac performance, worth every cent!

Used to upgrade memory capacity on my 2016 Apple iMac. Worked like a charm. Just open up and slide the cards in. No screwdriver or configuration required.

I love how fast my new iMac is.

Besides the wait, everything seems to be A1. I opened the package slapped these puppies in and TA- tothe-DA my iMac recognized them as for increase in speed and longevity I’ll be updating reviews in a couple weeks

Works perfectly.