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Other World Computing - MacSales.com
Product Specs:
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.
Please note:

For the 21.5" iMac, it is strongly recommended that you purchase a memory upgrade kit designed specifically for the 21.5" iMac. This machine requires tools to open and adhesive to reseal.


This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs
iMac Intel
iMac w/Retina 5K display
(27-inch Mid 2017)
(June 2017)
Model ID:iMac18,3
3.4GHz i5, 3.5GHz i5, 3.8GHz i5, 4.2GHz i7
Install Videos coming soon
iMac Intel
iMac w/Retina 4K display
(21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,2
3.0GHz i5, 3.4GHz i5, 3.6GHz i7
iMac Intel
iMac (21.5-inch Mid 2017)
(June 2017)
Model ID:iMac18,1
2.3GHz i5
OWC Memory 8.0GB 8GB PC4-19200 DDR4 Mfr P/N: 2400DDR4S8GB MacSales.com SKU: OWC2400DDR4S8GB OWC Memory Upgrade Kit Lifetime OWC Limited Warranty Ships: Same Day only $114.99
Add to CartOther World Computing 2400DDR4S8GB In Stock, Click to Buy Now
Additional Capacities & Kits:
  • 4GB
    • Ships: Same Day
    • Only $51.99
    • MacSales.com Price $51.99
  • 8GB (2x4)
    • Ships: Same Day
    • Only $109.99
    • CyberSaver $109.99
  • 8GB
  • 16GB (2x8)
    • Ships: Same Day
    • Only $229.98
    • Matched Kit for $214.99
  • 16GB
    • Ships: Same Day
    • Only $179.99
    • MacSales.com Price $179.99
  • 32GB (2x16)
    • Ships: Same Day
    • Only $359.98
    • Matched Kit for $347.99
  • 32GB (4x8)
    • Ships: Same Day
    • Only $459.96
    • Matched Kit for $424.99
  • 64GB (4x16)
    • Ships: Same Day
    • Only $719.96
    • CyberSaver $679.99