2GB PC2-5300 (667MHz) DDR2 SDRAM for MacBook, 5-5-5-15, 200-pin SODIMM...The Mac Memory SODIMMs allow users to maximize memory bandwidth and minimize performance bottlenecks to deliver a superior user experience. Built to Corsair's legendary quality and reliability standards, each module is tested to ensure maximum compatibility. Each Mac Memory module is individually tested and certified to be compatible with Apple products. Compatible with the MacBook, the MacBook Pro, and Intel-based versions of the iMac.