A-Tech 32GB RAM for Apple iMac & Mac Mini (2018, 2019 & 2020) | DDR4 2666 MHz SODIMM PC4-21300 / PC4-21333 260-Pin SO-DIMM Memory Upgrade

Easy to install, works well. Mac recognized new memory in under 1 minute and booted up. Great way to not pay Apple 100’s of $ for a very simple task.

I had to use slots 1,2 and 4, each with 16GB for a total of 48 GB. The computer would not boot with memory in slots 1,2,3 or 2,3,4, it only worked with 1,2,4. Thank you!

Definitely improved response time and overall performance. Wasn’t a massive difference but definitely noticeable. Super easy upgrade for a great price.

It took all of five minutes to install the new RAM which includes shutting down the computer and placing it on a towel to protect the screen (this is a 27" iMac, 2020 vintage). The instructions did not have the release button showing in the actual location, but it was pretty obvious where it was. The RAM chips did not lock in the first time I placed them, then I simply reversed them and they clicked right in. I pushed the locks back in place and closed the lid. Once the computer was upright I pushed the start button. My external drives lit up, but the computer did nothing for about 2 minutes. Then it began booting. The instructions on the Apple site did say that it took a couple of minutes for the computer to recognize the new RAM, so that was expected. Once the computer was fully booted I checked "About this computer/Memory" and it showed that the computer now had 32 GB of RAM. No problems noted, everything works well. Videos seem a bit richer, but I don't expect a lot of noticeable changes since 16 GB handles most basic processes. This RAM was about 1/3 the price of the RAM sold by Apple on its website, and is likely just as good.

Easy to install two 16MB cards in slots 2 and 4. Existing 4MB modules remained in slots 1 and 3. Watch a video or read the comments if you are unsure of the procedure. And make sure to press hard on each module to ensure proper seating. If the Apple logo does not reappear within 30-60s, that's likely the issue. I had to reopen the computer once and sure enough, one module was not fully inserted.

I love Apple, but buying RAM directly from them is the biggest waste of money I can think of. The RAM A-Tech sells, is no different than the RAM Apple sells, except A-Tech RAM is way cheaper, and well worth it. The 8GB or RAM my 2019 27" iMac came with wasn't cutting it. I'm a creative type, plus I have a short attention span, so I like to have lots of windows and programs open at the same time. If you're a multitasker in 2020, 8GB of RAM on an intel based Mac is not gonna cut it. I Bought two 16GB sticks of DDR4 RAM, installed them into my Mac, and now I have 40GB of RAM, and I'm loving it. This is the most RAM I have ever had in my life, maybe down the line I'll buy two more 16GB sticks and swap out the stock 8GB sticks so I can max out at 64GB, but for now 40GB is more than enough. Make the switch, you won't regret it.

I have a new 27" iMac, with Apple's 8GB RAMBought A-Tech 2x8GB RAM1). On the day I picked up my iMac from the local Apple Store, the problems started. Apple's RAM was in slots 2 and 4 (4 being closest to iMac stand). The A-Tech RAM would not install in slots 1 and 3 (the iMac would not start up), so we had to move Apple's RAM to 1 and 3, and A-Tech's to 2 and 4. Strange.2). From Day One, this new iMac has had dozens of niggly little problems that my old 2011 24" iMac never had. Too many to mention, but here are a couple: (a) the sound levels slowly getting lower and lower and then disappearing; multiple restarts required to fix / (b) for no reason, the fans repeatedly coming on at full speed, making an appalling - and frankly, quite scary - noise.3). I have had to restart this new iMac more than all the other iMacs I ever ever owned combined together (and I've been buying them since the late 1980s!)4). Last week, I finally took out the A-Tech RAM and returned Apple's RAM to slots 2 and 4, then restarted.5). All of my niggling problems *instantly* disappeared. Computer - now with 8GB RAM - works like a dream, and somewhat surprisingly seems faster than when A-Tech RAM was installed and I was running it with 24GB RAM.6). In my case, buying cheap RAM was a terrible mistake. next time I will go for Crucial RAM.

I purchased x2 16GB RAM cards for the new 2019 iMac (Retina 5K, 27”). This is my first Mac computer so I went for the lowest priced option which came with a meager 8GB RAM. As I’m a complete novice, I followed a YouTube tutorial on how to install the cards and it was super easy. Much easier than expected actually. However, this was a brand new computer and my first two attempts in getting it to turn on after installing the cards were unsuccessful. Thinking the A-Tech RAM were faulty and before sending them back, I went through the reviews and found a lady who had the same problem as me and the solution she discovered (after trying yet still obtaining zero technical support from the company) was to add the cards, one Apple, then the other and repeat. So if you have the 2 Apple cards equaling 8GB RAM, leave one in the first slot, then insert the A-Tech card in the second slot, followed by the second Apple Card and then finally, the remaining A-Tech RAM card in the forth slot. I don't know how this would work out if you have purchased a different configuration to me but it worked out so a HUGE thanks to the person that left that review!At the end of the day, installing the RAM yourself is an enormous money saver compared to going through the official channels with Apple and I believe (but am not sure) that this doesn’t void your warranty. So while I cant comment on the improved efficacy after applying the added RAM, everything works very smoothly for me. I can use multiple applications including photoshop without any problem whatsoever.Highly recommended even for a complete newb.

Sem problemas. Resolveu.

Took a couple of tries to install the RAM as the computer wouldn't turn on the first couple of tries, but eventually it did and all is well. New RAM has been in for a couple of weeks now and the computer is running much better than before. My co-worker bought the same RAM and installed it on his iMac and hasn't had any issues either.

I ordered it for an IMAC upgrade. Propt delivery and excellent product.

iMac 2020 27inchのメモリ増設のため購入。ちゃんと認識しました。2667MHzで稼働しています。

Initially thought to get 4 pieces to upgrade to 128GB, I changed my mind to just order 2 pieces to make sure it works with the original RAMs (2x4GB). Installing was super easy, and having been working well since then. Total RAM is reported 72GB, performance is faster.