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Apple iMac (Retina 5K, 27-inch, 2017) iMac18,3 compatible upgrades

These upgrades are guaranteed compatible when you order from Crucial.com

Notes about your system:

If the processor is a 3.4GHz Intel Core i5, please order memory under the iMac (Retina 5K, 27-inch 3.4GHz Intel Core i5, 2017) iMac18,3 model.

If your system utilizes the 3.4GHz Intel Core i5, please order memory upgrades under the iMac (Retina 5K, 27-inch 3.4GHz Intel Core i5, 2017) iMac18,3 model listing.

A 3.5" bracket is required to mount the SSD in your system. Our part number for the bracket is CTSSDCONVT.

Your Apple iMac (Retina 5K, 27-inch, 2017) iMac18,3

system specs as shipped

memory

  • Maximum Memory:64GB
  • Slots:4 (2 banks of 2)
*Not to exceed manufacturer supported memory.
what does this mean?
Memory or DRAM is the "working" memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.

storage

  • Storage: Serial ATA support
what does this mean?
Storage drives -- hard drives and solid state drives -- are the permanent memory for the programs and documents on your computer.

Compatible Memory

Crucial 8GB DDR4-2400 SODIMM Memory for Mac

CT10559860

  • DDR4 PC4-19200 • CL=17 • Single Ranked • x8 based • Unbuffered • NON-ECC • DDR4-2400 • 1.2V • 1024Meg x 64 • lead free • halogen free • for Mac
  • upgrade for Apple iMac (Retina 5K, 27-inch, 2017) iMac18,3 system.
  • £69.59 inc. VAT*
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Crucial 16GB DDR4-2400 SODIMM Memory for Mac

CT10559857

  • DDR4 PC4-19200 • CL=17 • Dual Ranked • x8 based • Unbuffered • NON-ECC • DDR4-2400 • 1.2V • 2048Meg x 64 • lead free • halogen free • for Mac
  • upgrade for Apple iMac (Retina 5K, 27-inch, 2017) iMac18,3 system.
  • £131.99 inc. VAT*
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Compatible SSDs

Crucial MX300 1TB SATA 2.5" 7mm (with 9.5mm adapter) Internal SSD

CT10559826

  • 1TB 2.5-inch internal SSD • SATA 6.0Gb/s • 530 MB/s Read, 510 MB/s Write
  • upgrade for Apple iMac (Retina 5K, 27-inch, 2017) iMac18,3 system.
  • £266.39 inc. VAT*
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Crucial MX300 275GB SATA 2.5" 7mm (with 9.5mm adapter) Internal SSD

CT10559811

  • 275GB 2.5-inch internal SSD • SATA 6.0Gb/s • 530 MB/s Read, 500 MB/s Write
  • upgrade for Apple iMac (Retina 5K, 27-inch, 2017) iMac18,3 system.
  • £92.39 inc. VAT*
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