Review on Timetec 32GB Kit (2x16GB) Apple DDR4 RAM 2666MHz / 2667MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch Retina 5K, Late 2018 Mac Mini (8,1) PC4-21333 /PC4-21300 MAC RAM by Michael Hudson

Update March 2021 - Memory corruption problems after 4 months of memory corruption. After testing with 2 modules at the same time the set of 2 modules is ok one of the other 2 modules has a problem i didn't take the time to determine which one is faulty from the company and got a quick reply i had to send 2 modules back before they sent a replacement sent so they came back (unfortunately via USPS) My Mac works fine on 64GB with 2 modules I will update this review when I receive replacement modules Needless to say I am very nervous about the reliability of these modules at the moment At least the company responded quickly and I hope to get replacement modules quickly Never had this problem with Crucial memory on my predecessor Mac computer. I really hope I didn't make a mistake trying to save a few bucks. It's very frustrating to see your Mac crashing in the middle of work. Decided to install 4 x 32GB memory modules BEFORE starting a new iMac. I took out 2 modules of 4GB. Allowed. Nothing. What a painful feeling. I've read where another review pointed out a problem with this, but also read that it doesn't matter. I took out the 32GB modules and put 2 4GB modules back in. Launched with no problems. go through the start-up process. Turn off your iMac. I removed 2 modules of 4GB and reinserted 4 modules of 32GB. I looked at the iMac. A bit concerned as the iMac hasn't shown the Apple logo in ages. Then, when all hope was gone, the Apple logo and start appeared. I assume the iMac took extra time to look for 128GB. Maybe I didn't wait long enough when I first started. Anyway, the iMac now has 128GB of 2667MHz modules, and this baby is fast with the i7, 8 cores, 16 threads, 3.8GHz, Turbo, 5.0GHz. Now it's a computer. I'll train the iMac and let you know if memory issues arise. I'm running Windows with Parallels and now have 32GB installed for the Windows VM. I also have an Ubuntu server on Parallels and I can try running the Windows server and Ubuntu at the same time to see how this baby works, although I've never tried it before. The memory needs to be trained well. I was very hesitant to try this memory, but at around $150 under Crucial and OWC, I thought it was worth a try. So far, so good.