Name: 4.0GB 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Module
Brand: OWC
SKU: OWC2400DDR4S4GB
Price: 19.99 USD
Availability: OutOfStock
Rating: 4.97 (39 reviews)

4.0GB OWC Memory Upgrade

4GB 2400MHZ DDR4 SO-DIMM PC4-19200

OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program | 30 Day Money Back Guarantee

Product Specs:

Technology: DDR4 SO-DIMM 260 Pin
Density: 4GB (4096MB)
RoHS: Yes
Pin Count: 260-pin
Op. Temp.: 0C to +85C
Data Rate: DDR4-2400
Speed: PC4-19200
CL: 17
Voltage: 1.2V
ECC: Non ECC
Module Ranks: Single Rank
Low Noise 8-Layer PCB
Meets and/or Exceeds Apple/Intel Specifications
RoHS Certified
Free Installation Videos & Manuals
Warranty Safe Upgrade.
OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program
Why do I need more RAM?

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.

COMPATIBILITY
Reviews
RATINGS

Special Note for 21.5" iMac (Late 2017) imac18,1 and 21.5" iMac (Late 2017) iMac18,2: Installing memory in a 21.5" iMac (2017) requires tools to open the machine and adhesive to reseal it. For a complete installation solution, see OWC Memory Upgrades for 21.5" iMac with Retina 4K & Non-Retina Display (2017).

This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs

iMac w/Retina 5K display
(27-inch Mid 2017)

(June 2017)

Model ID:iMac18,3

3.4GHz i5, 3.5GHz i5, 3.8GHz i5, 4.2GHz i7

Detailed specs

Install Videos

iMac w/Retina 4K display
(21.5-inch Mid 2017)

(June 2017)

Model ID:iMac18,2

3.0GHz i5, 3.4GHz i5, 3.6GHz i7

Detailed specs

Install Videos

iMac (21.5-inch Mid 2017)

(June 2017)

Model ID:iMac18,1

2.3GHz i5

Detailed specs

Install Videos

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 4.9 / 5 37 out of 39 (95%) reviewers would recommend this product

1 2 3 4 5

Verified Buyer

Reviewer: Deivi Location: Puerto Rico Age: 35-44 Experience Level: Power User

Rating: 5/5 Great!!!! August 10, 2020 Fast delivery and super easy installing, thanks!!!!

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: madmeg Location: Story, WY

Rating: 5/5 Like New August 4, 2020 OWC RAM is a fantastic value. I always buy a new Mac with either the lowest RAM configuration or close to it. Then a few months later I max it out with OWC's RAM. And it's like getting a completely new Mac! Had to do it a little earlier this time. My music production software was complaining about real-time processing. But once installed, I haven't seen any warnings.

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: hn394441

Rating: 5/5 Working Perfectly July 24, 2020 Easy to install, and working perfectly as expected.

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: GerfnitAuthor Location: Highland Park, IL Age: Over 65 Experience Level: IT Professional Owned Product: less than a month

Rating: 4/5 I'm at maximum warp, uh, er, I mean RAM July 5, 2020 My 2017 iMac 5K is now at 64GB of RAM, all from OWC. I'm trying to stretch this machine a couple of years before I replace it. No matter what Mac I buy, I always seem to bump up against a performance ceiling. OWC is always there to help me upgrade.

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: JamesKentfield Location: Wilshire, England Age: 45-54 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Great product July 4, 2020 Super easy to set up, and the packaging was very secure. It shipped in record time. I was very happy with this purchase.

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Thejuan Location: KY Age: 55-65 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 One Word..AWESOME!!! July 3, 2020 Received my Memory Upgrade in a very timely manner. Very easy installation.GREAT PRICE!!!!!

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Rextechs

Rating: 5/5 Excellent upgrade, works flawlessly. May 2, 2020 I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: BILLYBOY Location: westchester ny Age: Over 65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 GREATEST PRODUCTS April 24, 2020 I ordered these memory upgrades for my computer and I want to report this product is amazing. I installed them myself and they worked flawlessly. Not a single problem and they booted up instantly.This company makes great products period and ships instantly.

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Davide

Rating: 5/5 Perfect November 1, 2019 I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: JoelTee Location: Holden Beach NC Age: 55-65 Experience Level: Home User Owned Product: over 6 months

Rating: 5/5 Awesome service August 19, 2019 I bought one pair and it wouldn't work in my 2017 iMac. OWC returned them, tested them, replaced them and the new set works as intended. Thanks for the fast turn around and professional service

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: egClone Location: Johnston, IA Age: Over 65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 OWC Memory April 3, 2019 I've use OWC memory upgrade kits in the past for all of the Macs that I have had. Never had an issue . Just put in a pair of 8 GB in my 5K iMac and it showed up right away after the startup.

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: PatR Location: North GA Age: Over 65 Experience Level: Power User

Rating: 5/5 Other World Computing Comes Through Again! November 20, 2018 My one year old iMac needed a boost in memory (as do I-but that's another story). I used the Chat window, 'chatted' with a knowledgeable tech, asked a few questions and then ordered my memory chips.

They arrived two days later and thanks to OWC videos, my new RAM was installed, EASILY, in under 3 minutes!

I've purchased several products from OWC over the years and they just always come through with great deals, great videos and great technical assistance if you need it. Thanks, OWC!!!! 5 stars, as usual! :-)

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Luna Location: NJ Age: 45-54 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Life Changer November 20, 2018 The memory upgrade I purchased from Other World Computing/MacSales.com allows me to work at 64 samples without audio clicks and pops. As a composer this allows me access to percussion VSTi's and integration with fantastic computer based hardware that previously were unusable due to latency issues at a 128 sample rate. Considering the time and money I have invested in programs and gear this upgrade was for me a life changing experience. Overall my whole system is more solid and fluid. It is as if the i7 processor was built to utilize the full memory capacity of my machine. Installing was easier than I imagined. I popped out the 4x8 GB PC4-19200 DDR4 2400MHz SO-DIMM's and installed the 4x16 MG PC4-19200 DDR4 2400MHz SO-DIMM's and my machine booted right up and showed the new memory in the system. Immediately I could see the power of the increased memory with the speed at which I opened programs, even my mouse seemed to glide more fluidly. And when I started using my software I knew I had made a wise investment. I do not recommend taking chances buying CPU intensive programs without having the memory to handle it in the first place, but upgrades in Mac's happen fast and programs are eager to use the extra processing power. Increasing memory is one of the best ways to get more out of your machine. As it stands now with new Mac's I believe it is the only upgrade possible. Thanking MacSales.com for increasing my workflow and opening the door to some fantastic possibilities.

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: dogluva

Rating: 5/5 So far, terrific! November 4, 2018 I purchased 2 sticks of RAM for my Mac a few weeks ago. Good price, well packaged for delivery. Installed without a hitch and so far, so good. Machine is way faster, and the entire process of buying and installing was very easy. I've never ordered from OWC before, but it was recommended to me and I would purchase from them again.

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: indigoDan Location: Philadelphia Age: Over 65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 More Memory! October 29, 2018 I've been buying my upgrade memory from OWC for years. Works great, easy tutorial and I get a rebate. What's not to like about that.

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Joey99

Rating: 5/5 Works perfectly October 5, 2018 I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: ChetNC Location: Greenville, NC Age: 55-65 Experience Level: IT Professional Owned Product: less than a month

Rating: 5/5 Works great and quick delivery September 24, 2018 No problem with the memory in my iMac. Removed the old memory, install the new memory and system reported the total of 64GB the first time and have had no problems with the memory.

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Charger01 Location: Alvarado, Texas Age: 45-54 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 shipping September 16, 2018 i don’t know about the product yet but i did free shipping cause i ordered computer from Apple. they got here in days it will be another week before ill get computer

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: NopSled Location: Grovetown, GA Age: 45-54 Experience Level: IT Professional Owned Product: 1-3 months

Rating: 5/5 Performs Perfectly! September 2, 2018 Installed the 4 DIMMS into my new iMac with no issues. I've experienced none of the quirky system issues that are normally associated with RAM. This memory has performed perfectly!

I would recommend this item to a friend! This review is from 64.0GB (4x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: ManyPhotos Location: Dallas, Texas Age: 55-65 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Don't panic after installing your RAM! August 20, 2018 I just bought a new 27" iMac 5K and added the OWC 32 GB RAM kit to it before I even plugged it in. The process is very quick and very easy -- it took maybe two or three minutes. No problem -- but be aware. The machine would not turn on when I first plugged it in, so I looked up the symptoms on my phone and was relieved to discover that it's normal. Newer Macs have to initialize any RAM when it is first installed or the RAM configuration is changed. I just followed the recommended routine -- unplug the machine, hold down the I/0 button for at least ten seconds, then plug it in and hold the button in again until it starts up. Everything boots properly and you're off and running. As I don't buy new Macs often, I was unaware of this change. But panic averted, I have a new machine with plenty of RAM and everything working just the way it should!

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: LensguySteve Location: Southampton Age: 55-65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Works as described, without a hitch! August 20, 2018 Easy to install, fast shipping, less expensive than competitors, what else can I say...... oh yea Works Great!!

I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: DarthXoc

Rating: 5/5 Works great; turns the iMac into a real powerhouse! July 23, 2018 I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: DarthXoc

Rating: 5/5 Excellent value compared to Apple's prices! June 24, 2018 I would recommend this item to a friend! This review is from 16.0GB (2x 8GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Deelee Location: Ithaca, NY Experience Level: Noob Owned Product: less than a month

Rating: 5/5 Easy to install June 19, 2018 The order came quickly. The memory was extremely easy to install. Computer recognises it as such, so we are good to go!

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: virtualmeida Location: denver Age: 55-65 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Easy install - works great June 11, 2018 Put this into our new iMac 27" 5K, kept the existing stock RAM in place & added an additional 32Gb of RAM. Love buying from OWC, you know their products work & easy install,

I would recommend this item to a friend! This review is from 32.0GB (2x 16GB) 2400MHz DDR4 PC4-19200 SO-DIMM 260 Pin CL17 Memory Upgrade Kit. Customer Videos:

1 2 3 4 5

OWC Memory 4.0GB 4GB PC4-19200 DDR4 Mfr P/N: 2400DDR4S4GB OWC SKU: OWC2400DDR4S4GB OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Pending

Reviews (39)

only $19.99

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