Boost the memory capacity of your supported Mac or Windows PC with the 128GB DDR4 2666 MHz SO-DIMM Memory Upgrade from OWC. Compatible with 260-pin SO-DIMM slots, this 128GB DDR4 memory upgrade comes in four 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.
iMac with Retina 5K display (27", March 2019)
Select Intel and AMD processor-based PCs