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Crucial 8GB Kit (4GBx2) DDR3 1333 MT/s (PC3-10600) CL9 204-Pin SODIMM Memory For Mac CT2K4G3S1339M (Notebook)

4.8 out of 5 stars 1,407 customer reviews
| 280 answered questions

Was: $43.99
Price: $40.36 & FREE Shipping on orders over $49. Details
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8GB KIT (4GBx2)
DRAM
    This fits your .
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  • Increases system performance
  • Compatible with Mac Systems
  • Premium quality memory from a trusted brand
  • DDR3 Low Voltage / DDR3L DRAM
  • Limited Lifetime Warranty
121 new from $33.20

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$40.36 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Crucial 8GB Kit (4GBx2) DDR3 1333 MT/s (PC3-10600) CL9 204-Pin SODIMM Memory For Mac CT2K4G3S1339M (Notebook)
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  • Samsung 850 EVO - 500GB - 2.5-Inch SATA III Internal SSD (MZ-75E500B/AM)
Total price: $196.11
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This item: Crucial 8GB Kit (4GBx2) DDR3 1333 MT/s (PC3-10600) CL9 204-Pin SODIMM Memory For Mac CT2K4G3S1339M (Notebook)
Customer Rating 5 out of 5 stars (1407) 5 out of 5 stars (2842) 4 out of 5 stars (5151) 4 out of 5 stars (2021)
Price $40.36 $42.99 $35.98 $40.19
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com
Capacity 8 GB 8 GB 8 GB 8
Number of Items 2 2 2 1
Memory Storage Capacity 4 GB 4 GB 4 GB 4 GB
Memory Clock Speed 1333 MHz 1066 MHz 1600 MHz 1333 MHz
Ram Memory Technology DDR3 1333 DDR3 1066 DDR3 1600 DDR3
Add to Cart Add to Cart Add to Cart Add to Cart

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Product Description

Capacity: 8GB KIT (4GBx2) | Style: DRAM

Product Description

CT2K2G3S1339M is a 8GB kit consisting of (2) 4GB DDR3 Notebook modules that operates at speeds up to 1333 MT/s and has a CL9 latency. It is dual voltage and can operate at 1.35V or 1.5V. It is Unbuffered and is non-ECC. It conforms to the industry standard SODIMM layout of 204 pins and is compatible with computers that take DDR3 SODIMM memory.

From the Manufacturer

Crucial SODIMM

Crucial SODIMMs.

Help your laptop perform at its best.

Designed to help your laptop run faster and smoother, a Crucial memory upgrade is one of fastest, most affordable, and easiest ways to improve your system’s performance. Crucial memory empowers your laptop to achieve faster application loading times, faster system responsiveness, and increased ability to multitask and handle data-intensive programs. What does this mean? Spend less time staring at loading screens and more time getting stuff done. Crucial laptop modules are rigorously tested at both the component and module level to ensure that your memory meets our stringent compatibility and performance standards. Every module Crucial manufactures is tested for complete functionality before it leaves our doors. At a fraction of the price of your laptop, an investment in Crucial memory helps your system get up to speed.

Crucial – quality you can depend on.
Crucial is a trusted name when it comes to DRAM, and that’s no coincidence. As a brand of Micron, one of the largest manufacturers of DRAM in the world, Crucial works with our engineers to design, refine, test, manufacture, and support our extensive line of memory modules. To ensure that you get a reliable memory upgrade, Crucial tests every module at the component and module level to make certain that it meets our exacting specifications. If it doesn’t meet or exceed the performance levels that Crucial advertises, then it doesn’t leave our doors. With a product portfolio that includes thousands of upgrades for more than 50,000 systems, Crucial has one specifically designed for you.

Crucial Logo
Product Highlights:
  • Selection – comprehensive product portfolio includes modules for over 50,000 systems and includes everything from energy-efficient DDR3 modules to legacy DDR modules in a range of densities
  • Quality – all of Crucial's memory is manufactured from premium quality DRAM and fully tested at the component and module level for performance, reliability, and system compatibility
  • Reliability – backed by over 30 years of DRAM industry experience
  • Compatibility – OEM-compatible with the latest PC systems*

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Installation

*While Crucial memory is OEM-compatible, you’ll want to check your system’s specifications to ensure that the memory you’re ordering works with your system in terms of technology (i.e. DDR, DDR2, DDR3), speed, and module density.


Product Information

Capacity:8GB KIT (4GBx2)  |  Style:DRAM

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM
RAM 4 GB DDR3 1333
Memory Speed 1333 MHz
Brand Name Crucial
Item model number CT2K4G3S1339M
Item Weight 1.9 ounces
Product Dimensions 7 x 0.4 x 5 inches
Item Dimensions L x W x H 7 x 0.44 x 5 inches
Computer Memory Type DDR3 SDRAM
Voltage 1.5 volts

Technical Specification

Additional Information

ASIN B008LTBIT4
Customer Reviews
4.8 out of 5 stars 1,407 customer reviews

4.8 out of 5 stars
Best Sellers Rank #17 in Computers & Accessories > Computer Components > Memory
Shipping Weight 2.2 ounces (View shipping rates and policies)
Date First Available July 12, 2012

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here [PDF ]

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Marco Garibay on December 9, 2014
Style Name: DRAMSize: 16GB KIT (8GBx2) Verified Purchase
I've added this pair of memory modules to my iMac 27-inc, Mid 2011, to upgrade from 4 GB to 20 GB of total RAM.
Despite the Apple documentation claiming that 16 is the maximum capacity for this model, I researched and found that you can max out to up to 32 GB.
For those people that have no clue (like me), the installation was really easy:
1 - Turn off your iMac. Touch the iMac frame to discharge you (electrostatic), and unplug it from A.C. Place your iMac "face down" in a towel.
2 - unscrew the 3 bolts from the memory bay at the bottom of the iMac, remove the memory cover.
3 - leave the 2 RAM modules in their slots (I had 2 RAM modules, of 2 GB each).
4 - Insert the NEW 2 RAM modules (8 GB each) in the 2 available slots.
5 - Screw the 3 memory cover bolts, get it up back in place and turn it on. That's it.

By looking at the "About this Mac > Memory" screen, I went from:
[ 2 GB ] [ 2 GB ]
[ ] [ ]

To:
[ 2 GB ] [ 2 GB ]
[ 8 GB ] [ 8 GB ]

Hope this helps!
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Style Name: DRAMSize: 16GB KIT (8GBx2) Verified Purchase
I bought this for a mid 2011 imac. Apple states that the maximum ram in a 2011 imac is 16 gig, and each of the four slots are also limited to 4 gig each, with a total ram for all four slots being 16 gig.
Did as much research as possible seeing that most sellers of ram claim that the 2011 imac will take up to 32 gig, but more importantly 8 gigs per slot. So I took the chance and got 2 8 gig chips plus the 2+2 chips I had giving me a total of 20 gigs of ram.
Works great. Be careful to double check that you get the ram that is made for Mac.
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Style Name: DRAMSize: 8GB KIT (4GBx2) Verified Purchase
In a word OMG. Why the heck did I wait over 2 years to do this!!!!! I have a mid 2011 mac mini that came with the lame 2GB. I HATED how slow that machine always was (and especially after mavericks came out).. It crawled on Yosemite, so being a tech, I knew memory would help. I HAD NO IDEA IT WOULD MAKE THIS THING SIZZLE.. Crucial is the go to brand anyway and the install literally took me 20 seconds, but that's due to the mac mini easy access. However, great product and great price!
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Style Name: DRAMSize: 16GB KIT (8GBx2) Verified Purchase
i change my old 4gb (2 x 2gb) ram with this one 8gb (2 x 8gb) and now the laptop runs like a tunder. My adobe suite programms start faster and now i can use more programms at a time.
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Style Name: DRAMSize: 16GB KIT (8GBx2) Verified Purchase
Works like a charm, went from 4gb on my iMac to the max of 16gb. It is a mid 2011 iMac 21.5" it made a drastic change and installed very easily through the bottom plate on the iMac. The tabs you pull on to remove the old ones are a bit tough. Just use a firm steady amount of pressure and they'll come out.
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Style Name: DRAMSize: 8GB KIT (4GBx2) Verified Purchase
I have a MacBook Pro 13-in Late 2011 running OS Yosemite. Before buying this ram I checked my "Activity Monitor" and found that I was constantly using 3.8-3.9 of my 4 GB of RAM. Seriously lagging. I received the package in 2 days and installed 8 GB in about 10 minutes. Amazing results! I'm not watching all my icons bounce around and waiting for them to open. I HIGHLY ENCOURAGE you to upgrade to 8 GB. It's just night and day.
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Style Name: DRAMSize: 16GB KIT (8GBx2) Verified Purchase
I upgraded from 2x2gb RAM to this 2x8gb RAM and had very little problems installing this product. After installation, I booted up my laptop and it immediately recognized that I had 16gb of RAM. However, once I opened Chrome, my computer froze. After a hard reset, I rebooted the laptop and I have since had no issues at all.

My computer is much faster. Next purchase.... a solid state drive!
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By Kyle on September 15, 2012
Style Name: DRAMSize: 16GB KIT (8GBx2) Verified Purchase
I originally bought Komputerbay RAM because of the price, but they failed. Returned those and spent a few extra bucks on Crucial. Totally glad I did, because after running a few RAM tests, all tests passed and it has made a significantly noticeable difference with my macbook pro's performance. Very much recommended.
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