Upgrade the memory in your 27″ iMac with Retina 5K Display (Late 2015) with a model ID of iMac17,1 using the 16GB DDR3 1867 MHz SO-DIMM Memory Kit from OWC / Other World Computing. This memory kit features a total capacity of 16GB, which is made up of two 8GB modules. It also has a clock speed of 1867 MHz, a bus speed of PC3-14900, and a 204-pin SO-DIMM form factor. It operates using 1.35V, has a CAS Latency of CL=11, a cycle time of 1.875 ns, does not support ECC technology, and is not registered. Additionally, it is fully compliant with JEDEC specifications and is RoHS certified.
Please bear in mind that this RAM will only work with the Apple 27″ iMac with Retina 5K Display (Late 2015). These systems have a model ID of iMac17,1.
Martine Homenick (verified owner) –
My iMac has 16 GB of RAM in two 8 GB modules, with two slots still open. I bought his memory upgrade to take my iMac to 32 GB. Delivery was prompt. Installation took less than 5 minutes. Bam, now 32 GB of RAM.
Herminio Morissette (verified owner) –
Excellent performance, highly recommended
Madonna DuBuque (verified owner) –
I decided to increase the memory in my iMac from the original 8GB to 24GB. The installation was simple and smooth, but I have to admit Im disappointed that there does not appear to be a significant boost in speed or overall performance.
Elisa Bergnaum (verified owner) –
Easy install in my late 2015 iMac 27″ Retina. Just watch a video on YouTube and it takes about 2 minutes.
Sofia Cassin (verified owner) –
I upgraded my iMac to 16GB and now it’s working without any crashes, It works absolutely great!!!
Gardner Lehner (verified owner) –
Memory installed easily. After install mac booted up normally. Now when running photo editing software there’s still over 4GB unused RAM.
Rasheed Hane (verified owner) –
Bought the Late 2015 Imac with 16gb memory installed. Upgraded with 2 more 8 gbs for a total of 32. I cant tell the difference in speed with the extra memory. In some instances I feel like it actually runs slower. I use LR and PS non stop daily.
Gust Homenick (verified owner) –
Bought 32GB for our 5K iMac a couple of years back. As soon as we installed it, we had issues with freezes and crashes. Called OWC which are usually good at replacing any defective product. They said that we had to test it in the machine before returning it and submitting a report; they recommended Rember, software to test the RAM. As long as we ran Rember the iMac didn’t crash but as soon as we turned it off, it would freeze or crash again. This meant there was no report or proof of the issues. So for about a year we just ran Rember all the time but it slowed down the machine a bit. But we lived with it since OWC wouldn’t replace the RAM. Then in the last couple of months the crashes started up again and are really severe and even Rember doesn’t record anything since the computer freezes instantly and damages software that is running or project files. It’s too bad, OWC used to be really supportive but not so much anymore.
Gracie Schulist (verified owner) –
I had already upgraded my iMac to 24 GB memory last year or so. Don’t know why I don’t go a head and do 32GB. I brought 2 of these to match the other two. Easy install and is running find. Everything is good so far.
Brandyn Herzog (verified owner) –
to begin, I thought it’s not gonna work very well,But after set up it I realize it’s amazin. I want to say thank you very much, You guys are amazing. and also I have planning to get one more 60 GB too for my iMac.
Kyleigh Labadie (verified owner) –
Amazing product! Perfectly packaged, easy to open, easy to install, you can really see the difference in your workflow immediately. Very good product and great service from B&H, Top notch!
Ryder Pouros (verified owner) –
Making the commitment to remove the factory 4G x 2 of Ram for the 8G x 2 money well spent – large layered imaging files in Photoshop not a problem now. Spinning beach ball less frequent…Id do it again.
Dorothea Nader (verified owner) –
Unfortunately Adobe Lightroom & Photomatix keeps crashing when blending HDR photos. Something seems to be wrong with this RAM. I’ve had my computer completely crash and shut down by itself too. Returning and exchanging for a new one in hopes I just got bad ones.
Maci Jacobson (verified owner) –
It works perfectly fine. Was easy to install and it’s running fine so far.
Mack Schroeder (verified owner) –
Very easy and fast installation. Can certainly tell a big difference in page loading speed now. Received promptly.
Heloise Streich (verified owner) –
Excellent price, quick delivery! I did have one problem, and that was the new iMac didn’t recognize one of the memory modules. But that was because I hadn’t seated it firmly enough. Took moments to resolve. Excellent instructions!
Alysha Ruecker (verified owner) –
B&H ARE ALWAYS HELPFUL AND back there products. Got to love the no tax.
Jorge Ortiz (verified owner) –
Works as it should at 1867Mhz in 27 iMac.
Kieran Howell (verified owner) –
High quality product and super fast delivery I’m satisfied a lot with this OWC RAM bundle exactly suitable for my iMac Retina 5k 27′ late 2015. My iMac become faster.
Elwin Okuneva (verified owner) –
Great for the price. Definitely saw a change in how fast windows and programs were opening and operating.