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

I purchased memory from OWC for my 2020 iMac 27" twice, and each time the memory did not work. One set wouldn't allow my computer to turn on at all, and the next set caused my computer to reboot about 5 mins over and over. I was very frustrated, and decided to give the Crucial memory before giving up on upgrading. It installed in ~3 mins and has worked flawlessly with no reboots, no crashes, no issues at all. The iMac has never run better, and I'm relieved to have found a solid solution for a good price.

I need more ram for my iMac. It works perfectly. Just make sure you read carefully and follow the instructions. It’s pretty smooth.

I have an Intel Mac that was struggling with 16GB of RAM. Looked into buying a Apple silicone mac mini but could not justify the cost of one that supported 3 monitors. Installation is simple with the right bit and now the Mac Mini is alive. There are some weird issues with Chrome and Bluetooth but only does it (shutters) maybe once a month and a restart corrects it.

I’ve been using Crucial RAM forever and needed to upgrade my family computer. This RAM has greatly improved performance and enabled an upgrade to MacOS 15 Sequoia. The annoying Apple pop up spamming me that my Mini’s memory was low is gone. Big applications can run no problem with large .PDFs open contemporaneously.Dads, strap on the Etonic comfort sandals with socks following this project; and assume your hardest Cptn. Morgan pose when filling in the other neighborhood dads whom you tolerate in your territory regarding the unfathomable accomplishment you've wrought forth with your dad mitts. For not only did you perform cyber surgery on this Macintosh mare's innards, but the six year old girl lived to tell the tale and NOW. SHE. RIPS.Now, to throw more dirt on Apple: physically installing these So-Dimm sticks in the Mac Mini was like a powerful rash on the nether regions. The required tools which you DO NOT currently possess and are, indeed, 100% required for wiring work (particular on the power plug and the wifi antenna YOU CANNOT BE DELICATE ENOUGH) are also found on budget here on amazon with the JOREST 38Pcs Small Precision Screwdriver Set. If you think differently then I guess you're a Jabroni who needs to do a better job staying on top of the pressure washing on his home's siding in the back, PHIL! Be sure that you spend enough time on YouTube before you undertake this one: Apple intentionally engineered the box to be lay-person resistant. But with time, attention and care you can avoid a big cost associated with having a professional or the OEM themselves upgrade the RAM.

I decided to get the memory upgrade before they might become unavailable. Knowing myself, I use my Apple computers for 10+ years, so when I would decide in the future to upgrade, they might have become obsolete.After installation, I went for the full set of 4x32GB, the computer takes (a lot) more time to do its initial boot process (before the chime sounds), but it works great..!I have not used more than 40GB at a time so far, so maybe I could have been ok with just 64GB!

Really happy with this product that I bought the extra memory gave my computer the boost it needed easy to install. Definitely recommend this seller.

Bought the 64 GB kit. DDR4-2666 SODIMM 1.2V CL19 to REPLACE my old 8GB, same brand etc.PC did not boot after installation. Tried each 32GB stick individually on the same slot and only 1 worked.Anyway, easy and quick return. Total time wasted ~2hour

If you're 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 organize my day-to-day by having a desktop open for each separate project - with each desktop having organized browser windows/tabs, Finder folders, etc. I was getting by with the factory stock 16gb, but upping the total RAM to 80gb is impressive.I unplugged the computer, rested it gently (padded) on the monitor, and pressed harder/further than anticipated on the button revealed under the power cord to pop open the memory cover. Note: set this cover aside in the same orientation to make reassembly easier with the flush fit. I pulled one factory 8gb stick and replaced it with the new 32gb stick, and repeated for the second replacement. I then put the original 8gb memory back in the two remaining slots.Your Mac wants the memory spread evenly across the channels - that is why there was originally a gap between them. So stick to that placement/spacing. In my case, my memory goes 32gb, 8gb, 32gb, 8gb.Make sure they are firmly and fully seated and close the tab back over and reassemble.Can be done in 5 minutes and you'll be very happy! Boot the system up and everything will initialize and you'll be good to go - if not, it is almost certainly because you don't have the memory sticks fully seated.