DDR4 RAM 16GB (1x16GB) 2666 MHz CL19 1.2V 260-Pin Laptop Gaming SODIMM Upgrade for 2019 iMac 27-inch with Retina 5K Display, Late 2018 Mac mini(MD4S162619MZSC)

compared to all the other options the price was very good, the memory worked correct in my 2018 mac mini I3 quad core. I will say this that installing in these mac minis is not easy and you should watch a video how to install. The minni runs faster now and gets things done the way I want now.

My HP ProBook 440 G3 specs say the RAM is limited to 8GB (DDR4) x 2 slots for a max of 16GB. I made sure the laptop's firmware (BIOS) was up to date and tried one of these. It recognizes a single 32GB module without any hiccups. On first boot, the laptop came up with a message that there was a memory change, I went into the BIOS, confirmed the change and viola! It works. To see if the memory would go even higher, I mixed this 32GB with one of the old 8GB modules and that worked as well. At this price it's worth it for me to max this thing out at 64GB.

My 2019 imac had become unbearably slow, taking forever to "warm up" and becoming useable after being in sleep mode. Also loading Chrome pages very slowly and continuously "beach balling" . The Activity Monitor showed only 8GB of RAM installed and Used Memory was always upwards of 7GB. Installed this in about 5 minutes and I had a dramatic increase in performance. Used Memory is now in the 20GB range so 64GB may have been overkill but for the price I like knowing the extra capacity is there. As others mentioned the initial reboot after installing these takes awhile and I had to reboot a couple times before things settled in, Overall very happy with this purchase as it looks like I can get a couple more years out of my imac. Only minor negative was shipping time but guess we are all spoiled by the "get it tomorrow" mindset.

I purchased these RAM cartridges to increase the memory in my 2019 27" iMac from 8GB to 64GB. Much more economical to purchase the additional RAM separately than having it pre-installed by Apple. I watched YouTube videos on how to insert the RAM cartridges so I felt confident to purchase these cartridges and install them myself. I have not had any processing issues since installing these in my iMac. I may purchase another set to increase the overall memory to 128GB. I don't do any heavy graphics or gaming so the 64GB is working just fine.

Been about a month since I installed this 64GB kit in my 2018 Mac mini, and it's running like a champ so far! This is not a "user upgradable" part according to Apple, but with a few special tools, a YouTube walkthrough, and some basic mechanical aptitude, it's not hard to do. I bought this Mac mini specifically because it was the LAST Mac mini made by apple where the RAM could be replaced by the end user. Bought it with the default 8GB, knowing that I could find a deal on RAM a few years down the road, and this RAM fit the bill beautifully! Great value for the money!

Works as advertised no issues and the best price I found. Apple does use torch security bits on their hardware so make sure you had some of those too or you will not be installing these when they arrive. Instantly saw the change in computer speed.

I contacted the manufacturer through their web site because one or both of the memory modules is defective. Other than their list of exceptions to the "Lifetime Warranty" - their RMA policy is a joke. In their RMA letter they state - "Because we started to manufacture replacement modules after receiving the defective modules from you. Therefore, the defective module will not be covered by this warranty if it is discarded or lost." SO... You have to take out the memory - ship it to Taiwan - and WHEN they get it they will manufacture new memory. Estimated time - 2 MONTHS. They expect you to be without your computer for 2 months or buy someone else's RAM. Save yourself the headache and buy other memory to start.

The first package I received did not work; my computer was unable to boot with it installed. Amazon was very quick to get me a replacement without requiring I first get the defective one back to them (allowing me several weeks to complete the return). The replacement worked great.

Hi price low quality

Only bought this because my usual goto choice of Crucial wasn’t available. Using in an Intel i10 NUC and performance is great. No issues experienced so far. Actual components on the DIMM’s are identical to Crucial so good quality.

Mi trovo bene sul mio Imac 27

Installed using iFixits guide for 2018 Mac mini and seems to be working just fine so far. Computer recognises it and it's working as intended. Don't be scared to buy cheap RAM, there are very few RAM manufacturers and most no-name brands are just relabelled branded products. Will report back here if any issues arise! 🤙

These RAMs, these RAMs, they work. These RAMs they work