• Crucial 16GB kit (8GBx2) DDR4 2666 MT/s (PC4-21300) CL19 SODIMM SR X8 260pin 1.2 V for late 2018/early 2019 27 inch iMac

Tags: Crucial, 16GB, kit, (8GBx2), DDR4, 2666 MT/s, PC4-21300, 27 inch, iMac,

Crucial 16GB kit (8GBx2) DDR4 2666 MT/s (PC4-21300) CL19 SODIMM SR X8 260pin 1.2 V for late 2018/early 2019 27 inch iMac

  • Brands Crucial
  • SKU: 183603
  • MPN: CT2K8G4S266M
  • Availability:
    • Auckland Showroom: 0
    • Wellington Showroom: 0

Increases Mac system performance
Compatible with Mac systems
Easy to install
Every single module extensively tested at the component and module level
Limited lifetime warranty

Take the guesswork out of upgrading your Mac with Crucial® memory for Mac systems. Since Apple® computers often have very specific memory requirements, including particular component densities, speeds, and SPD programming specifications, it's important to use memory that's engineered for your Mac. With more than a decade of experience manufacturing and developing memory for all types of Apple computers, Crucial makes adding memory the easiest way to upgrade your Mac.

Reliability for Mac systems

When you use your Mac system, you expect intuitive, dependable performance. Expect the same out of your memory. Every Crucial module that leaves our doors has been extensively tested at the component level for voltage and temperature resistances, signal integrity, and software compatibility.

Speed for Mac systems

A memory upgrade is the fastest, easiest, and most affordable way to get more performance out of your Mac system. Upgrade your Mac with Crucial memory modules and maximize your creativity with top speed and high density DDR3 and DDR4 memory modules.

Support for Mac systems

Unsure how to install memory or have an important question about your Mac system? Let the Crucial experts help! They know Apple systems inside and out and enjoy providing helpful, friendly technical support. Whether it's phone support, videos, FAQ articles, or do-it-yourself install guides for more than 70 different Mac systems, Crucial has the resources you need to keep your system up to speed.

Micron quality - a higher level of reliability.

As a brand of Micron, one of the largest memory manufacturers in the world, Crucial memory for Mac systems is backed by the same quality and innovation that has produced some of the world's most advanced memory and storage technologies. With a product portfolio that includes upgrades for more than 100,000 systems, we've got one specifically designed for your Mac system.




Form Factor:


Total Capacity:

16GB kit (8GBx2)


DDR4 PC4-21300 CL=19 Dual Ranked x8 based Unbuffered NON-ECC DDR4-2666 1.2V 2048Meg x 64 lead free halogen free for Mac

Kit Qty:



2666 MT/S

DIMM Type:






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