4GB Crucial DDR3 SO DIMM 1600MHz PC3 12800 CL11 1.35V Memory Module - for Apple iMac 27-inch by Crucial

When you use your Mac system, you expect intuitive, dependable performance. And if you’re a Mac Pro user, you expect mission-critical workstation reliability. Expect the same out of your memory. Every module that leaves our doors has been extensively tested at the component level for voltage and temperature resistances, signal integrity, and software compatibility. Even better, modules are lead- and halogen-free.

A memory upgrade is the fastest, easiest, and most affordable way to get more performance out of your Mac system. Standard DDR3 modules help Mac systems reach speeds up to 1600 MT/s. 

Unsure how to install memory or have an important question about your Mac system? Let our team of experts help! Our team knows Apple systems and requirements inside and out, and we’ll provide the technical support you need – no matter which Mac system you’re using. From phone support, videos, FAQ articles, and do-it-yourself install guides for more than 70 different Mac systems, we’ve got the resources you need to keep your system up to speed.