Name: 4.0GB PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Module
SKU: OWC1333DDR38S4G
Price: 19.88 USD
Availability: InStock
Rating: 4.93 (156 reviews)

4.0GB OWC Memory Upgrade

4.0GB 1333MHz DDR3 SO-DIMM PC10600 204 Pin

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

Product Specs:

Technology: DDR3 SO-DIMM
Density: 4GB (4096MB)
RoHS: Yes
Comp. Count: 8
Depth: 512Mb
Width: x64
Pin Count: 204-pin
Op. Temp.: 0C to +85C
Data Rate: DDR3-1333
Speed: PC3-10600
CL: CAS 9-9-9-24
Cycle Time: 1.875ns
Voltage: 1.5V
Comp. Config: 512Mb x 8
ECC: Non ECC
Module Ranks: Dual Rank
Register: Non Parity
Low Noise 8-Layer PCB
Meets and/or Exceeds Apple/Intel Specifications
Fully Compliant with JEDEC 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.

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

iMac (27-inch Mid 2011)

(May, 2011)

Model ID: iMac12,2

2.7GHz i5, 3.1GHz i5, 3.4GHz i7

Detailed specs

Install Videos

iMac (27-inch Mid 2010)

(July, 2010)

Model ID: iMac11,3

2.8GHz i5, 2.93GHz i5, 3.6GHz i7

Detailed specs

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iMac (21.5-inch Late 2011)

(August, 2011)

Model ID: iMac12,1

3.1GHz i3

Detailed specs

Install Videos

iMac (21.5-inch Mid 2011)

(May, 2011)

Model ID: iMac12,1

2.5GHz i5, 2.7GHz i5, 2.8GHz i7

Detailed specs

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NOT COMPATIBLE
iMac (21.5-inch Mid 2010)

(July, 2010)

Model ID: iMac11,2

3.06GHz, 3.2GHz, 3.6GHz

Detailed specs

Install Videos

MacBook Pro (17-inch 2011)

(October, 2011)

Model ID: MacBookPro8,3

2.4GHz, 2.5GHz

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MacBook Pro (17-inch Early 2011)

(February, 2011)

Model ID: MacBookPro8,3

2.2GHz, 2.3GHz

Detailed specs

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MacBook Pro (15-inch 2011)

(October, 2011)

Model ID: MacBookPro8,2

2.2GHz, 2.4GHz, 2.5GHz

Install Videos

MacBook Pro (15-inch Early 2011)

(February, 2011)

Model ID: MacBookPro8,2

2.0GHz, 2.2GHz, 2.3GHz

Detailed specs

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MacBook Pro (13-inch 2011)

(October, 2011)

Model ID: MacBookPro8,1

2.4GHz, 2.8GHz

Detailed specs

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MacBook Pro (13-inch Early 2011)

(February, 2011)

Model ID: MacBookPro8,1

2.3GHz, 2.7GHz

Detailed specs

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Mac mini (Mid 2011)

(July, 2011)

Model ID: Macmini5,1 & Macmini5,2

2.3GHz, 2.5GHz, 2.7GHz

Detailed specs

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Mac mini (Mid 2011 Server)

(July, 2011)

Model ID: Macmini5,3

2.0GHz

Detailed specs

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PC Laptops

Compatible with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.

Reviews

"After memory was installed ... it was shocking how much faster the system brought up the OS." - Jeffrey Powers, Geekazine

Customer Ratings

Write a Review 4.9 / 5 150 out of 156 (96%) reviewers would recommend this product

1 2 3 4 5 6 7

Verified Buyer

Reviewer: MrMike Location: Ossining, NY Age: Over 65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Instruction video is great March 11, 2019 The chips do exactly what they are supposed to do -- increase the amount of RAM in my iMac. this did help speed up the iMac's performance.

The key was the clear easy to follow instructional video. They said the installation is "easy". They were right.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Krismo Location: Sapporo, Japan Age: 25-34 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 So far great! November 18, 2018 So far, it's working great. I received in the mail through regular international shipping after 2 and a half weeks. I installed and they even gave me a free tool to open my Macbook. Installation was easy, I went from 4gb RAM to 8GB ram. So far, the memory doesn't seem corrupt, and my Macbook took well to it. Overall happy, small upgrade, but my computer already feels better with it.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

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

Rating: 5/5 excellent September 9, 2018 no problems whatsoever

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: PaulG73 Location: Harvard, MA Age: Over 65 Experience Level: IT Professional Owned Product: less than a month

Rating: 5/5 Memory DIMMs worked flawlessly August 28, 2018 One of the expansion memory DIMMs in my late-2011 iMac developed a memory error, so I purchased these parts to replace the failed units. The new memory DIMMs have been working flawlessly since I installed them. The parts also arrived well ahead of their predicted due date.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Harrycarlin Location: Cary NC Age: Over 65 Experience Level: IT Professional Owned Product: less than a month

Rating: 5/5 Superb company to deal with June 29, 2018 This company is top notch. I ordered two 4g memory cards incorrectly

They took them both back no question and got me the correct one I should jave ordered

Extremely friendly and helpful

Highly recommended

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Shorty2 Age: Over 65 Experience Level: Noob Owned Product: 1-3 months

Rating: 5/5 Wow-what a difference in speed! June 11, 2018 This product was so easy to install and so flawless that I can't believe I waited so long to order it. This is the second time in the life of this ancient laptop that I have turned to OWC for a ram upgrade. It was such a quick installation and the performance is flawless. Your products and support are so good, I will never look elsewhere.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer Top 100 Contributor

Reviewer: TheRetiredViking Location: Tri-Cities area TN Age: Over 65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 They work June 7, 2018 Not a whole lot to say; memory works or it doss not. I installed the memory, my Mini booted right up, and runs fine. This was installed as part of a heavy duty upgrade that included an SSD.

This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: DudesMom Location: Mission Viejo, CA Age: 25-34 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 My Macbook Pro is fast again! May 30, 2018 I updated my early 2011 MBP to High Sierra OS and it immediately became very sluggish and I would get very delayed click responses on everything. I was pretty bummed thinking I would need to spend a ton of money to get my laptop back to normal. I called up my friend, Jim, who has worked on my personal and work computers multiple times and he suggested buying more memory from here. I am so happy I did! The price was very reasonable, I got a tracking number very soon after I placed my order, my order arrived in less than a week, and it was well packaged to avoid any damage. Jim installed the memory in about 20 minutes and suggested a few more things to speed up my laptop and I'm back in business again. I may be back to get a new hard drive as suggested for the older models of MBP.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Didimus Location: Japan Age: 55-65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Product performs as expected May 12, 2018 Very happy with the product. Performs as expected and was easy to install.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: ITrunner Location: Tucson, Arizona Age: 25-34 Experience Level: IT Professional Owned Product: 1-3 months

Rating: 5/5 Works Great May 3, 2018 Over the years i've had terrible luck with other brands of 3rd party ram for apple machines, but these kits consistently work without any issues. Very easy to install and recommend them with complete confidence. Purchased 5 or 6 of these over the years to upgrade machines, no issues.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Mac305

Rating: 5/5 Great product April 29, 2018 Easy to install, works great - no problems. Shipped well and packaged well. I definitely recommend.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Magikarma Location: AZ Age: 45-54 Experience Level: Home User Owned Product: over 6 months

Rating: 5/5 Upgraded with no issues April 9, 2018 Upgraded my 2011 iMac and this was very reliable memory!

This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: CryptoZuess Location: Fort Worth, TX Age: 45-54 Experience Level: Power User Owned Product: over 6 months

Rating: 5/5 First Class All The Way April 8, 2018 The entire shopping experience and customer service was off the charts Thanks for the great pricing on the memory. It arrived very quickly and was exactly what I needed to turbo charge my iMac. I am not sure I could ask for more. Now I have a place to go immediately when I have another need for my Macs.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: thewrightstuff

Rating: 5/5 Easy to install, made my laptop run much faster than before!!! February 7, 2018 It literally took less than 30 seconds to install once you get the backing off but it made my 2011 MBP run much faster and Microsoft Word takes 5 seconds to load instead of 30 like it did before!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: evodawg Location: Southern California Age: 45-54 Experience Level: Hobbiest Owned Product: 1-3 months

Rating: 5/5 Easy Peasy Great Experience! February 4, 2018 Price was right and shipping fast. Could not have had a better experience..Even told my friend that works as a tech for Apple to start referring this site to customers with hardware problems.... Should be getting business from him...

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Fernecho Location: Trelle (Ourense - Spain) Age: 55-65 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 Fantastic RAM upgrade for MacBoock Pro January 29, 2018 Hello from Spain, Recommended for all users of MacBook Pro (13-inch, Early 2011), 2.3 GHz Intel Core I5. If you have upgraded the operating system to MacOS Sierra or MacOS High Sierra, then it is highly recommended that you increase the RAM of your MacBook Pro.

Before my Mac was slow and now with the upgrade of RAM 4 GB ---> 8GB has returned to be fast, I am very happy with this operation. Thank you so much for everything.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Boldtrek Age: 55-65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Super happy January 22, 2018 Easy to shop for a novice. Quick shipping. So happy with the results!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Redwinemaker Location: Cicero, NY Age: 55-65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 I received great tech assistance January 6, 2018 I had a little trouble getting my Mac mini to recognize all 8 gigs of ram. It only recognized 4 gig. I called tech assistance and Jason walked me through and we fixed the problem. Jason was great!! My computer is now running as fast, or faster, than new. Thank you!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: ladyhawke3099 Location: Frederick, MD Age: 45-54 Experience Level: IT Professional Owned Product: over 6 months

Rating: 5/5 Just what I needed! January 2, 2018 My productivity was being impacted in a very negative way by my slow Mac. After determining that it was the memory (or lack thereof), I purchased from MacSales.com. With the suggested tools & excellent how-to videos, I was able to open my Mac, install the new memory and even return the old memory for a rebate. I couldn't be happier with the speed of my Mac now. I can actually open more than 1 application at a time and get a lot more accomplished in a shorter period of time!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Clairvoyantexplorer Location: Hawaii Age: Over 65 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 Simple, Fast and Easy Transaction January 1, 2018 Aloha! I have not ordered much over the years, but when I need for my MacBook Pro or my wife’s MacBook Air, you guys are the ones I will go to for quality, reasonable prices, good customer service and good shipping times and cost I consider you an ally in the electronics world! Many thanks!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: WD40 Location: Everett, WA Age: 55-65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Amazing improvement... December 29, 2017 My poor old MacMini's performance was anemic at best...With 8 Gigs it's greatly improved...Easy instructions to exchange the memory and was up and running in no time...Still running like a champ...Well done folks!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: chrisorct Location: Winston Salem, NC Age: 35-44 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Perfect and a great price December 28, 2017 This was my first time changing over the RAM on my Mac (or any computer) and I was a little nervous I was ordering the wrong part or doing it wrong...and all that was put to rest with the ease of ordering and making sure I ordered for my SPECIFIC Mac. I'm using the Mac now and it's much, much faster! I'm looking here in a couple months to order a SSHD!

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

Reviewer: Bringiton Location: USA

Rating: 5/5 OWC - why go anywhere else? December 26, 2017 You can buy RAM a lot of places, but the value-added advice, video guidance and reliability always takes me back to OWC.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

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

Rating: 5/5 Best three minute upgrade ever November 13, 2017 Just pop the cover off the iMac, slide in two DIMMs, and seal it back up. With these very affordable upgrades you can breathe new life into an old Mac in no time.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

Verified Buyer

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

Rating: 5/5 Good deal November 5, 2017 My MacBook Pro laptop runs quite a bit faster since I upped its' memory using this product. Came on time, seems to be working fine.

I would recommend this item to a friend! This review is from 8.0GB (2x 4GB) PC3-10600 DDR3 1333MHz SO-DIMM 204 Pin CL9 SO-DIMM Memory Upgrade Kit. Customer Videos:

1 2 3 4 5 6 7

OWC Memory 4.0GB 4.0GB PC10600 DDR3 Module Mfr P/N: 1333DDR38S4G OWC SKU: OWC1333DDR38S4G OWC Memory Upgrade Module Lifetime OWC Limited Warranty Ships: Same Day

Reviews (156)

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