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Product Specs:
Memory Trade in
Save money by trading in your original chips! View available memory rebates.
From the purchase date of qualifying memory from OWC, you have 60 days to trade-in your old memory for a cash rebate!
Just fill out OWC's online rebate form or contact OWC Customer Service after you receive and install your new memory.
This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs
iMac Intel
iMac w/Retina 5K display
(27-inch Late 2015)
(October 2015)
Model ID:iMac17,1
3.2GHz i5, 3.3GHz i5, 4.0GHz i7

Customer Ratings

Write a Review 5 / 5 44 out of 47 (94%) reviewers would recommend this product
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Verified Buyer
Reviewer: Jorgen
Rating: 5/5 Works as expected. November 8, 2016 Installed and works fine with My iMac late 2015. Recommend!!

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: BobM Location: Long Island, NY Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Awesome November 8, 2016 Installation was a snap, & the memory works perfectly.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: 76WM Location: New Concord, OH Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Extremely good price! November 8, 2016 Very pleased with my Apple Memory Upgrade Kit. I use Photoshop and other memory intensive applications and needed a major upgrade for my new iMac. I used the chat to locate the correct upgrade kit. The rep was very helpful. I studied the installation video and it was very well done. The RAM was simple to install and it works great! I am very pleased!!!

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: In2Mac Location: Los Angeles, CA
Rating: 5/5 Easy Peasy November 8, 2016 The website information relative to the exact memory to purchase and the video instructions on how to install made the upgrade hassle-free and extremely easy. I could not be happier!

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: Mile Location: Serbia Age: 35-44 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Excellent price qulity ratio November 8, 2016 I vary happy with the product. It works really well. I will shop here again

Customer Videos:

Verified Buyer
Reviewer: wrightdu Location: Houston, TX Age: 25-34 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Excellent Product and Support! November 8, 2016 MacSales.com has always been the best place for quality Mac products and accessories. The memory I purchased worked out perfectly at a great value. Simple installation instructions were provided and provided everything I needed to safely install this memory. I wouldn't buy from any other vendor.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: AZDave Location: Arizona Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Added 16GB to my new iMac October 31, 2016 Dropped these two RAM modules into my new 5k iMac to supplement the 8GB it came with, for a total of 24GB. It has been running now for over a month with no problems. The most difficult part was getting that little cover on the back of the iMac to pop open!

Customer Videos:

Verified Buyer
Reviewer: byundt Location: Panama City, FL Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Works as expected October 23, 2016 When I bought my latest iMac, I immediately upgraded it with 16 GB of extra memory from OWC. While I might have been able to save some money with brand X memory from other web vendors, I lacked confidence that it would really work in my Mac. By buiying memory from OWC, there is no such worry--it just works.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: FreshPrinceOfElBear Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Good RAM October 17, 2016 I heard OWC had the best non-Apple RAM and it works fine.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: OsoBuddy Location: Columbia, MD Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Quick and Easy October 10, 2016 With the "how to" video, adding 16 GB to my iMac was quick and easy. Total time was less than 10 mins.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: 2fer Location: Central Puerto Rico Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Simply Easy RAM October 7, 2016 I had ordered a refurb 27" iMac and it had only basic RAM so I ordered a little more from OWC. It arrived the same day as the iMac so I was able to pop it in before ever turning on the computer. That took maybe 5 minutes and as soon as I did turn on the iMac, it showed the total that included the two new RAM modules. I liked that the correct product was matched up at OWC without needing to do all kinds of searching around because I did not have the computer I was ordering the RAM for before I bought it - just needed to know the year and model. They sent the right RAM, right away and it works super. Very happy to know that OWC is so dependable!

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: LetsgoOrange Location: Treasure Coast, FL Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Additional memory for my new imac September 8, 2016 Exceptionally easy to install this upgrade to my imac. Much less expensive than ordering from apple. This upgrade worked perfectly at startup after install. I highly recommend this addition for your mac!

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: cardcastleruins Location: los angeles, CA Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Good RAM August 8, 2016 Easy to install works great no complaints. I added this 16GB to my new iMac 5k in addition to the onboard 16GB.

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Verified Buyer
Reviewer: Anonymous Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Saweet!!! July 29, 2016 Shipping was several days faster, and I chose free. The ram has worked flawlessly, no funky kernel panics or weird behavior since installing. Very pleased with the product.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Bangkok, Thsliand Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Work great July 1, 2016 The RAM fits and works. What more can you ask for?

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Houston, TX Age: 55-65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 OWC Memory Saves You $ June 17, 2016 I trust OWC to be my sole provider for Mac memory. I max out the RAM on every Mac I buy. Sometimes I have no choice but to buy it from Apple when the Mac I want doesn't allow user upgrades, but otherwise I go to macsales.com. I've bought RAM from OWC for eight (8) Macs and never had a problem. I trust OWC to sell me OEM equivalent RAM at half the price Apple charges.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Kharkov Age: 25-34 Experience Level: IT Professional Owned Product: 3-4 months
Rating: 5/5 Best product and best service June 16, 2016 In a past a have some trouble with shipping...but MacSales quickly solved my problem and sent my order.

RAM works perfectly!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Selangor, Malaysia Age: 25-34 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Was looking for a product like this long time ago! June 11, 2016 I was searching every Apple outlets and authorised resellers, and that price is double up on OWC price. Thanks god that I found OWC and solved all my problems for self searching 1 by 1!And they do provide international shipping too!!! Thanks! I definitely will come back again!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Hartford, CT Age: 35-44 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Apple Ram Upgrade May 10, 2016 I updated my ram in my 5k iMac myself and its woking like a charm..No complaints on the durability of the product.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Pasadena, CA Age: 55-65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Bought 2 of the 8 GB 1867MHz DRAM (good move) April 29, 2016 I bought my iMAC27 with only 16GB of memory built in. I felt I could do a little better with the pricing so I held back and ordered 16GB of memory from MacSales.com. The price was very reasonable and I got the performance boost I wanted. Now, my iMAC27 is a full 32GB and behaving like it! Enjoy the iMAC every day knowing the memory additions have enhanced its already considerable performance. The upgrade was very easy and safe to do. I'm very happy with the upgrade.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Oslo, NO Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Fast delivery, excellent quality April 29, 2016 Love the whole concept of your services, which in addition are fast and efficient. Great build quality and more than satisfying performance. The best alternative to Apples expensive offerings. Highly recommended! 10/10

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Chicago, IL Age: 25-34 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Mac a new iMac 27in even faster? Yup! April 28, 2016 Added more ram and went smooth. Followed the install video and it was as easy as 1-2-3. Fired it up and now its even faster than it was and for way cheaper than adding ram directly from mac. Thanks much! When I go for 64gig I will be back.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: South korea Age: 35-44 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 good product April 25, 2016 Good price and good product

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Fresno, CA Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Works perfect April 23, 2016 Ordered for my late 2015 iMac 5k. Arrived in only 2 days, easy to install and works like a charm. My iMac is blazing fast now. Thanks!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: New Windsor, NY Age: 45-54 Experience Level: IT Professional Owned Product: 3-4 months
Rating: 5/5 Works Great in my 2016 5K iMac April 16, 2016 What can I say, rather than have Apple install the RAM at a much more expensive price I did so myself. It was really easy to do and I now have 24GB of RAM. I chose to leave the two 4GB modules in and upgrade from there. This RAM also give you matching speed to OEM RAM.

I would recommend this item to a friend!

OWC Memory 16.0GB 2 x 8.0GB PC3-14900 DDR3 Kit Mfr P/N: 1867DDR3S16P MacSales.com SKU: OWC1867DDR3S16P OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day Only $139.98CyberSaver $122.75
Add to CartOther World Computing 1867DDR3S16P In Stock, Click to Buy Now