64GB DDR4-2666 (PC4-21300) CL19 SODIMM Memory for Mac (Two 32GB Memory Modules) - CT2K32G4S266M

Take the guesswork out of upgrading your Mac system with compatible Crucial memory. Simple to install and backed by a limited lifetime warranty, Crucial memory speeds up your Mac so you can increase your productivity. Apple computers have very specific memory requirements including component densities, speeds, and timings thats why its important to use memory that has been specifically engineered for your Mac. With more than a decade of experience manufacturing and developing memory for all types of Apple computers, Crucial makes adding memory the easiest way to upgrade your Mac.