EDGE memory products provide maximum power, speed, quality and reliability. The distinctive blue EDGE is Peripheral's assurance that users have purchased a high-quality and reliable memory upgrade. EDGE memory allows users to maximize system performance resulting in quicker document rendering, faster Internet downloads, quicker saves and loads, and rapid game play.EDGE memory upgrades are the fastest way to upgrade your computer system and are perfect for virtually every computer system.This memory is designed for the following systems: Apple iMac G5 1.6GHz 17-inch (M9248LL/A); Apple iMac G5 1.8GHz 17-inch (M9249LL/A); Apple iMac G5 1.8GHz 20-inch (M9250LL/A).For a complete compatibility list please refer to the original manufacturer's web site.