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Crucial

Crucial CT4G3S186DJM 4GB iMac DDR3 Memory Upgrade

★★★★★4.7 (1060 reviews)

Maximize Your iMac's Potential with Enhanced MemoryUpgrade your iMac with the Crucial 4GB DDR3L SODIMM for improved multitasking and smoother performance. Specifically designed for iMac (Retina 5K, 27-inch, Late 2015) models, this memory module ensures compatibility and reliability. Brand: Cruci...

$38.36*
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*Price sourced from Amazon.com. Last updated:Jul 21, 2026.Price and availability are subject to change.

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Overview

Maximize Your iMac's Potential with Enhanced Memory

Upgrade your iMac with the Crucial 4GB DDR3L SODIMM for improved multitasking and smoother performance. Specifically designed for iMac (Retina 5K, 27-inch, Late 2015) models, this memory module ensures compatibility and reliability.

  • Brand: Crucial
  • Model: CT4G3S186DJM
  • Capacity: 4GB
  • Type: DDR3/DDR3L SODIMM
  • Speed: 1866 MT/s (PC3-14900)
  • Number of Pins: 204-Pin
  • Compatibility: iMac (Retina 5K, 27-inch, Late 2015)

Specifications

Brand
Crucial
Model Number
CT4G3S186DJM
Capacity
4GB
Type
DDR3 Memory
Compatibility
iMac
Product Type
Memory Upgrade

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Frequently Asked Questions

This is Crucial CT4G3S186DJM, a DDR3 memory module designed for upgrades.
This memory module provides 4GB of capacity.
Yes, this Crucial memory is designated as an "iMac DDR3 Memory Upgrade," indicating its intended compatibility with iMac systems.
The product title specifies DDR3, but the exact speed in MHz is not provided in the available features. Users should check their iMac's specifications for exact compatibility.
To ensure compatibility, it is recommended to consult your specific iMac model's service manual or use a memory compatibility checker to verify the required memory type and speed.

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