iMac Memory for Model 19.1 20.1 and 20.2

27-inch iMac with Retina 5K Display - 2019 to Current - (iMac19,1 - iMac20,1 - iMac 20,2)
LPDDR4-2666Mhz

Apple's 27-inch iMac with Retina 5K Display was originally released in March 2019. The system maximum is 64GB (4 x 16GB modules). Ramjet uses premium, non-stacked, low voltage chips for these LPDDR4-2666 modules. You can be assured that all of our modules are tested for your iMac.  

Technical Specifications: LP DDR4-2666MHz, PC4-21300, Non-ECC, Unbuffered, 1.2V, 260pin SO-DIMM

These machines have four low power SO-DIMM DDR4 SDRAM slots located on the rear of the computer just above the power cord receptacle. You can install any configuration of 8GB or 16GB modules in these slots. The 2019 21.5-inch iMac Models are not user-upgradable.

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Watch our installation video for upgrading RAM into a 27-inch iMac with Retina Display.

Click here for Apple's installation guide.