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4.0GB OWC Memory Upgrade

4GB 1867MHZ DDR3 SO-DIMM PC3-14900
OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program | 30 Day Money Back Guarantee
Memory Image
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.
- Please allow up to 14 Days from the time we receive your memory for testing and rebate processing.
- The OWC Rebate is for up to the same number of memory modules purchased and must be in working order.
This product is compatible with... Learn how to find your Mac's model ID
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
Detailed specs
Install Videos
iMac Intel
iMac w/Retina 5K display
(27-inch Late 2014)
(October 2014)
Model ID: iMac15,1
3.5GHz i5, 4.0GHz i7
Detailed specs
Install Videos
iMac Intel
iMac (27-inch Late 2013)
(September 2013)
Model ID: iMac14,2
3.2GHz i5, 3.4GHz i5, 3.5GHz i7
Detailed specs
Install Videos
iMac Intel
iMac (27-inch Late 2012)
(October 2012)
Model ID: iMac13,2
2.9GHz i5, 3.2GHz i5, 3.4GHz i7
Detailed specs
Install Videos
PC Laptop
PC Laptops
Compatible with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.

Customer Ratings

Write a Review 5 / 5 73 out of 80 (91%) reviewers would recommend this product
1 2 3 4 5 6 7
Verified Buyer
Reviewer: Bravebellows Location: Winter Haven FL Age: 55-65 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Customer since 2009 August 30, 2020 I've been a customer of OWC since 2009, starting with a replacement Superdrive for my aging TiBook. OWC has never let me down with the correct selections matched to the correct models, along with helpful videos and tools to upgrade/repair my Macs.

10/10 will order again.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Jacksonland Location: Los Angeles Age: Over 65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 This is a great upgrade August 25, 2020 I bought these for my iMac (Retina 5K, 27-inch, Late 2015) and had them ready when the iMac arrived. They were very easy to install, which I did before every turning the iMac on. I use Pro Tools, and this (total of 40 GB Ram) allows me to put the entire audio from a session into Ram.

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: DaWeve Location: Missouri Age: Over 65 Experience Level: Home User Owned Product: over 6 months
Rating: 5/5 Great inexpensive memory upgrade August 10, 2020 Bought them for my iMac, I'm a believer in having more RAM.

I would recommend this item to a friend! This review is from 32.0GB (4x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Garyking Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Good directions July 4, 2020 Great product, great directions.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: RonU Location: Roseville, Mi Age: 35-44 Experience Level: Hobbiest Owned Product: 1-3 months
Rating: 5/5 My ram for my iMac late 2015 July 4, 2020 Everything was what it says it was. Plug and play ram. Good to go, glad I upgraded probably should have got more; but it will do for now. Like I said no problems would order again.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer Top 250 Contributor
Reviewer: JimR Location: Elkhorn, NE Age: Over 65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Perfect Fit, Fast Delivery July 4, 2020 Doubled iMac 27 memory in less than 60-seconds! The link from the EveryMac.com entry for my iMac took me directly to the exact upgrade I wanted. OWC/MacSales is GREAT! :)

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Ighi Location: Czech republic Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Worth it! July 4, 2020 If You buy it, You will satisfied! Everything is working on 100%.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Tommyest Location: N. Hollywood, CA Age: Over 65 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Great product, price July 3, 2020 Just what I was looking for to upgrade the memory in my 27" iMac.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: TXBzean
Rating: 5/5 Works Terrific / Incredibly Fast Delivery May 6, 2020 I ordered a 32GB upgrade of RAM for my iMac and received it two days ahead of the scheduled delivery date I originally received. I immediately noticed a difference in how fast my iMac began operating. More importantly, I'm incredibly delighted at the overall experience and service received.

I would recommend this item to a friend! This review is from 32.0GB (4x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: MacUserS Location: Los Angeles Age: 45-54 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Positive March 13, 2020 The ordering process was efficient. Delivery was prompt. The product quality is high.

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Poonjw
Rating: 5/5 It works perfectly. Thanks January 3, 2020 I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:
Verified Buyer
Reviewer: Cash
Rating: 5/5 Works like a charm! July 2, 2019 Shipping was on time. Installation was easy. Works flawlessly.

I would recommend this item to a friend! This review is from 16.0GB 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Module. Customer Videos:

Verified Buyer Top 250 Contributor
Reviewer: Revolution Location: Hershey, PA Age: 25-34 Experience Level: Gamer Owned Product: less than a month
Rating: 5/5 64GB Ram March 21, 2019 This product works great. Applications run more smoothly.

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Spikit Location: Gatineau, Quebec, Canada Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Excellent product! November 30, 2018 I ordered this memory upgrade from Canada and received it in a timely manner, and most importantly, it worked as soon as it was installed in my iMac, unlike other RAM I bought from another seller...

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Billl Age: Over 65 Experience Level: Power User
Rating: 5/5 Memory Upgrade to iMac October 15, 2018 The memory upgrade was received, installed, as seems to be working flawlessly. My only comment was the process needed to determine if I needed to order 16gb or 32gb of memory. I already had 16gb and, in the past, it was recommended that all memory be identical. I was advised that adding 16gb would be fine and it did, in fact, work, it just took awhile for the tech to arrive at the recommendation. Thanks again for the support.

This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Spam76 Location: Austin, TX Age: 35-44 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Has made a world of difference September 19, 2018 Before my memory upgrade, running Logic Pro was problematic, as it would not be able to handle every command. Now it's seamless. A great upgrade for a great price. Easy to install, and ready to go!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: GilbertAZMusician Location: Gilbert AZ Age: 35-44 Experience Level: Home User
Rating: 5/5 Perfect fit. Great price. September 3, 2018 Everything work flawlessly and was easy to install. It arrived promptly. I would definitely recommend OWC @ Macsales. Great price too.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: WallE
Rating: 5/5 Love this site July 11, 2018 Great service and fast shipping. They make upgrading your electronics a breeze.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Nassim Location: Algeria , Blida Age: 25-34 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 My iMAC became faster! June 11, 2018 I received the product in short period and it work perfectly without any issues. Thanks MacSales.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: will02 Location: Maryland Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 iMac RAM June 6, 2018 I added 32GB RAM to my iMac for a total of 48GB. Easy to install, works seamlessly and makes batch processing of photos MUCH faster. I kept the original 16GB RAM that came with the system and the additional RAM is totally compatible.

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: DeanC Location: Perth, Australia Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Speedy RAM for my iMac May 13, 2018 I recently adding and saw an immediate improvement on application opening and audio processing. My Maschine & Studio One software have a marked improvement in processing time. I would highly recommend this RAM if you using audio, photo or video applications. This is my second set of RAM from OWC and the quality is what I expect. Excellent product.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: BoricuaMD Location: Cadillac Mi Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Flawless April 7, 2018 I bought a 32.0GB (4x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Shipping was very fast and free. The kit came in a well protected package with protection seal. Installing the kit was a piece of cake. Your videos help me a lot. They are very useful, short and to the point. Excellent job.

I would recommend this item to a friend! This review is from 32.0GB (4x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Joem Location: Florida Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 5/5 Outstanding! April 2, 2018 Works as advertised! Just what to expect from the Mac Pro's

I would recommend this item to a friend! This review is from 8.0GB 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Module. Customer Videos:

Verified Buyer
Reviewer: DudaMedrado Location: Stockholm Age: 35-44 Experience Level: IT Professional
Rating: 5/5 Really fast delivery! March 19, 2018 Really Fast delivery and product in perfect conditions! Also the information and help guides videos MacSales has are amazing!

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

Verified Buyer
Reviewer: Hairy Location: Dubai Age: 45-54 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Great service. No Problems. March 11, 2018 I have used OWC before to purchase RAM and this time was just as good. Items were delivered to me in Dubai in the expected time with no problems.

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 1867MHz DDR3 SO-DIMM PC3-14900 SO-DIMM 204 Pin CL11 Memory Upgrade Kit. Customer Videos:

OWC Memory 4.0GB 4GB PC3-14900 DDR3 Mfr P/N: 1867DDR3S4GB OWC SKU: OWC1867DDR3S4GB OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day
Reviews (80)
only $24.99
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