Compatible with Mac systems Take the guesswork out of upgrading your Mac with Crucial memory for Mac systems. Since Apple computers often have very specific memory requirements, including particular component densities, speeds and SPD programming specifications, it's important to use memory that's engineered for your Mac. With more than a decade of experience manufacturing and developing memory for all types of Apple computers, trust Crucial memory to optimize your Mac system's performance. Reliability for Mac systems 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 their 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. Speed and energy efficiency for Mac systems 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. For newer Mac systems, DDR3L modules are available. These modules deliver speeds starting at 1866 MT/s and use 10% less power for improved energy efficiency. Support for Mac systems Unsure how to install memory or have an important question about your Mac system? Let Crucial Technology team of experts help! Their team knows Apple systems and requirements inside and out and They will 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, they have got the resources you need to keep your system up to speed.