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Crucial CT16G4S24AM DDR4 ... has been added to your Cart

Crucial CT16G4S24AM DDR4 2400MHz SO-DIMM 260-pin Memory for Mac Module, 16GB Dual Rank

by Crucial
5.0 out of 5 stars 6 ratings

Price: S$120.75 + S$7.33 Delivery
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16GB Dual Rank
16GB Dual Rank

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Product information

Capacity:16GB Dual Rank  |  Style Name:16GB Dual Rank

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Frequently bought together

  • Crucial CT16G4S24AM DDR4 2400MHz SO-DIMM 260-pin Memory for Mac Module, 16GB Dual Rank
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  • Crucial 16GB Kit (2x8GB) Mac Memory Ddr3l-1600 CT2K8G3S160BM
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Product description

Capacity:16GB Dual Rank  |  Style Name:16GB Dual Rank

Product Description

CT16G4S24AM is a 16GB Dual Ranked DDR4 SODIMM module that operates at speeds up to 2400 MT/s and has a CL17 latency. It is an Un-buffered SODIMM. It conforms to the industry standard DDR4 SODIMM layout of 260 pins and is only compatible with 3.5GHz model systems that take DDR4 2400MT/s SODIMM memory.

Set Contains:

1x Crucial 16GB DDR4 2400MHz SO-DIMM 260-pin Memory for Mac Module CT16G4S24AM



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4 customer reviews

27 August 2020
Capacity: 32GB Kit (16GBx2) Dual RankStyle Name: 2666 MT/SVerified Purchase
30 October 2020
Capacity: 8GB Single RankStyle Name: 2666 MT/SVerified Purchase
19 September 2020
Capacity: 32GB Kit (16GBx2) Dual RankStyle Name: 2666 MT/SVerified Purchase
30 December 2019
Capacity: 16GB Kit (8GBx2) Single RankStyle Name: 2666 MT/SVerified Purchase

Most helpful customer reviews on Amazon.com

Amazon.com: 4.7 out of 5 stars 489 reviews
Amazon Groupie
5.0 out of 5 stars Take some deep breaths, stay calm and don't give up...these will work in the 27" iMac (2017)
27 August 2017 - Published on Amazon.com
Capacity: 32GB Kit (16GBx2) Dual RankStyle Name: 32GB Kit (16GBx2) Dual Rank
122 people found this helpful
Kindle Customer
5.0 out of 5 stars Works flawlessly in my 2017 iMac 27” If you are ...
8 October 2017 - Published on Amazon.com
Capacity: 8GB Single RankStyle Name: 8GB Single RankVerified Purchase
Customer image
5.0 out of 5 stars Works flawlessly in my 2017 iMac 27” If you are ...
Reviewed in the United States on 8 October 2017
Works flawlessly in my 2017 iMac 27”
***If you are keeping the stock memory that comes with this iMac****, put this Crucial memory in the slots that the Apple memory come installed in. Then put the two 4GB Apple RAM sticks in the other open slots
Your memory screen should look like this if you did it correctly. You want the new larger memory modules to be used FIRST. This will increase performance.
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55 people found this helpful
Jon
4.0 out of 5 stars Black Screen? Try moving the modules
10 August 2017 - Published on Amazon.com
Capacity: 32GB Kit (16GBx2) Dual RankStyle Name: 32GB Kit (16GBx2) Dual RankVerified Purchase
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4.0 out of 5 stars Black Screen? Try moving the modules
Reviewed in the United States on 10 August 2017
Got a black screen like I did? Try moving the memory around in different combinations while restarting in between. I did finally manage to get the 32GB Crucial Memory to work with the 8GB Apple Memory for a total of 40GB, but it took some experimentation.

My 2017 27" iMac with 8GB of memory came with two 4GB modules installed in slots 2 and 4. First, I installed the Crucial memory in slots 1 and 3 and got nothing but black screen. Pulled everything out and reseated with the same black screen.

Removing the 8GB of Apple memory worked, but left me with only 32 in slots 2+4. Reinstalling the Apple memory in slots 1+3 put me back to a black screen.

Following that I moved the Apple memory to slots 1+2 and the Crucial to 3+4. This worked! 40GB total memory. However, the memory is mismatched so there's a massive performance hit in this configuration. At this point, I shut down and tried the first configuration one last time--Apple memory in 2+4 and Crucial in 1+3, and finally it worked! Up and running with 40GB Memory with paired modules.

One might think the modules weren't seated properly, but I find that unlikely given the number of times I reseated the modules. So, if you're hitting nothing but black screen, try moving the modules around in different positions and then once something works try going back the ideal configuration. With some luck perhaps you'll also find the magic incantation for your system...
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51 people found this helpful
RONALD D. FERRELL
5.0 out of 5 stars UPDATE: IS comparable with original Hynix single rank 8GB memory that comes installed in a 2017 27" 4.2 GHz i7 iMac.
28 September 2017 - Published on Amazon.com
Capacity: 32GB Kit (16GBx2) Dual RankStyle Name: 32GB Kit (16GBx2) Dual RankVerified Purchase
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5.0 out of 5 stars UPDATE: IS comparable with original Hynix single rank 8GB memory that comes installed in a 2017 27" 4.2 GHz i7 iMac.
Reviewed in the United States on 28 September 2017
UPDATE: Changing my rating from 2 to 5 stars. This memory IS comparable with the 8GB Hynix Mac memory. You have to fully remove the original memory, install this kit in the first two rows and then install the original Mac memory in the last two rows. Installing the chip in an alternating pattern like the original memory is installed will not work. Hope that helps!

This memory works by itself in my two new 2017 27" 4.2 GHz i7 iMacs, but not with the original 8GB Hynix Mac memory and vice versa. I called Crucial and it is an issue with the new iMac not liking the mix of single rank and dual rank memory. If you purchase, just know you might have to remove your base memory to get this to work if your base memory is single rank memory.

Attached is a photo of the original mac memory that this crucial memory IS NOT comparable with.

Buyer beware.
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24 people found this helpful
Elbie
5.0 out of 5 stars Works gret with iMac 27" 2017
24 July 2017 - Published on Amazon.com
Capacity: 32GB Kit (16GBx2) Dual RankStyle Name: 32GB Kit (16GBx2) Dual RankVerified Purchase
22 people found this helpful