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64.0GB OWC Memory Upgrade Kit for 21.5-inch iMac (2019)

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Product Specs:
Professional Installation Highly Recommended
While this upgrade kit itself should not void your warranty, the installation process is very complex and thus it is recommended to be performed by a trained professional.
Memory Trade in
Save money by trading in your original chips! View available memory rebates.
From the purchase date of qualifying memory from OWC, you have 60 days to trade-in your old memory for a cash rebate!
Just fill out OWC's online rebate form or contact OWC Customer Service after you receive and install your new memory.


  • (2) 32GB 2400MHZ DDR4 SO-DIMM PC4-19200
  • (1) 21.5" iMac Adhesive tape set for proper display resealing
Note: 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.
This OWC Memory is compatible with... Learn how to find your Mac's model ID
iMac Intel
iMac w/Retina 4K display
(21.5-inch Early 2019)
(March 2019)
Model ID:iMac19,2
3.6GHz i3, 3.0GHz i5, 3.2GHz i7


OWC Memory 64.0GB (2 x 32GB) 2666MHZ DDR4 SO-DIMM PC4-21300 Mfr P/N: 2621DDR4S64P OWC SKU: OWC2621DDR4S64P *For Apple iMac 21.5" 4K (2019) with screen adhesive Lifetime OWC Limited Warranty Ships: Same Day Only $607.97Cyber Saver $304.99
Add to CartOther World Computing 2621DDR4S64P In Stock, Click to Buy Now
Additional Capacities & Kits: Complete Memory Upgrade Kit w/ Tools Memory & Display Tape Only
  • 16GB (8GBx2)
    • Ships: Same Day
    • Only $105.97
    • Matched Kit for $94.99
  • 32GB (16GBx2)
    • Ships: Same Day
    • Only $207.89
    • Matched Kit for $149.99
  • 64GB (32GBx2)