Boost the memory capacity of your supported Mac or Windows PC with the 2666DDR4S64P MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 64GB DDR4 memory upgrade comes in two 32GB modules and has a 2666 MHz clock speed, a bus speed of PC4-21300, and a low-noise, 8-layer PCB design. Operating at 1.2V, this memory upgrade is designed to meet or exceed Apple's and Intel's specifications.
Note: For 27-inch iMac (2020) models - iMac20,1 and iMac 20,2 - OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.
Compatibility
iMac with Retina 5K display (27", March 2019)
Mac mini (November 2018)
Select Intel and AMD processor-based PCs