CT2K2G2S667M - Crucial Technology 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDimm 1.8V Memory

Product highlights Increases Mac system performance Compatible with Mac systems* All DDR3 and DDR3L modules are lead- and halogen-free Easy to install Every single module extensively tested at the component and module level Available in SODIMMs, RDIMMs, and ECC UDIMMs Limited lifetime warranty 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.