64GB OWC Memory Upgrade Kit - 2 x 32GB PC21300 DDR4 2666MHz SO-DIMMs for Mac mini (2018 - Current), iMac (2017-2020), and compatible PCs

Installed 2x16gb into my new iMac i7 3.8. Improved performance as expected. Easy to fit I used wrist static leads to avoid static. To maintain best performance I used slots 1 and 3 as recommended. None of the videos on installing memory that I found advised that it can take more than 30 seconds to start to boot up while the new memory is recognised. Amazons price was very competitive for OWC which is rated highly for Mac upgrades

re: OWC 32.0GB (2 x 16GB) 2666MHz DDR4 PC4-21300 SO-DIMM 260 Pin Memory Upgrade The memory works well as an upgrade for a 2020 iMac 5k. Works at the expected 2667Mhz speed; and works reliably. It is easy to install in an iMac. Adding one of these kits gets you from 8GB to 40GB. Thats five times better. Memory from the Apple Store is overpriced; this is way less expensive; without being the cheapest kit.

I am very pleased with the customer services and customer communication The products maybe is the best in the market as per customer reviews but unfortunately they memory don’t not for me and was a memory corruption massages I get on the Apple reports My iMac 27” early 2019 Retina 5k 3GHS 6 core intel core i5 doses accommodated that memory upgrade Item was returned no question asked and full refund issued Many thanks to all specially Amazon customer service staff

Open packet to 5 minutes later using my Mac. I have never been able it upgrade memory so fast. The memory comes well packaged to protect it in the post. Apple makes it simple to upgrade the memory on the iMac and OWC make it affordable. Don’t over pay Apple for more memory buy these they are exactly what you need.

Just received the ram is for an i9 imac 2019 27 inch. First impression is that start up time is 4 times than it was with the original 8GB of ram. Will in the next days how it behaves.

Took three minutes to fit. Registered in "About this Mac" at once. Speeded up the whole operation. VERY VERY PLEASED.

Good quality, works well, really good performance

I had 4 memory slots, 2 with memory I purchased in 2021 same OWC brand and then 2 with memory I got in Jan 2024. The new memory just corrupted out of nowhere in October under a year after I purchased it. I'm reluctant to buy this brand again but wonder if the seller or anyone else can put me at ease? Memory isn't totally stable? I've never encountered this before and I've had Mac's for 25 years.

La compre para pasar mi MacMini i3 2018 de 8 Gb a 32 Gb y va perfecta, compatible 100 %, ya hace casi 6 meses que se realizo la ampliación, como lo uso para tareas básicas, le he alargado la vida util, ademas de añadir agilidad en el trabajo diario.

Shipping was extremely slow but it came well packaged in the factory packaging. Genuine OWC RAM. Seller can be trusted. Have been using it for several weeks now and no issues

5 Stars for this seller. Product delivered in 3 days. Product is amazing and go for this Seller. Product prise is bit more but the service is amazing. I had ordered same product with different seller but he failed to deliver after one month also. But this seller is amazing. Purchase from this seller. Genuin product 100%. Seller PC parts and solution.

Instalei num iMac 2020 e está rodando numa boa!

iMac2019に装着して快適になりました。