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Memory Upgrades for 21.5" iMac with Retina 4K Display (2019)

Actual product may differ slightly in appearance.

Trade In Your Original Memory and SAVE!

OWC Memory Upgrades For 21.5" iMac with Retina 4K Display (2019)


64GB
Up to 64GB memory
2x
Up to 2x more memory vs. factory options

Works with the following Model IDs

  • iMac19,2
  • Rigorously in-house lab tested. Learn more »

  • Easy DIY install videos. Learn more »

  • OWC MaxRAM Certification. Learn more »

  • Lifetime warranty with advanced replacement. Learn more »

Works with the following Model IDs

  • iMac19,2

Trade In Your Original Memory and SAVE!


OWC Memory

  • This Mac has two available memory slots.
  • Install in pairs for best performance.
  • All installed memory should be the same speed for best performance.
  • Backed by an OWC Limited Lifetime Warranty.
OWC Memory
Complete Memory Kit Buying Options

2666MHz DDR4 PC4-213001 -- Maximum 64GB supported

16GB (8GB x 2) $67.99 Add to Cart
32GB (16GB x 2) $103.99 Add to Cart
64GB (32GB x 2)
$182.99 Add to Cart
Includes memory, tools, suction cups, microfiber cloth, OWC Screen Removal Tool & adhesive strips
Memory Kit Buying Options

2666MHz DDR4 PC4-213001 -- Maximum 64GB supported

Install Videos

Our step-by-step installation videos guide you through upgrading your Mac, iPhone, iPad or iPod.

View all Install Videos »

Solid State Drives

Shop SSD specifically for your iMac Experience the true speed of your mac with an OWC SSD flash storage upgrade. Select your Model ID below.

SSDs for your SYSTEM NAME

OWC General Servicing Kit for iMac

Includes all installation tools to service all Apple iMac models released since 2008.

Learn More »

OWC General Servicing Kit for iMac

  1. PC4-21300 DDR4 2666MHz SO-DIMMs will operate at 2400MHz speeds in iMac19,2 models with 3.6GHz Quad-Core i3 Processor. This memory will operate at full 2666MHz speeds in other iMac19,2 models.