Peripheral Enhancements is a worldwide computer memory manufacturer with a strong focus on service, quality, and support. In a commodity-based market sector such as computer memory, Peripheral has risen above and beyond its competitors by adding value to its product beyond the basics such as competitive price and reasonable quality. Peripheral offers extremely high-quality branded memory products at competitive prices built on a foundation of service and support unmatched in its industry.This memory is designed for Apple iMac 233 MHz, 266 MHz, 333 MHz (Original iMac); iMac 333 MHz (Grape, Tangerine, Strawberry, Lime, Blueberry); PowerBook G3 (Black Case) 233, 266, 300 MHz; PowerBook G3 (Black Case) 250, 292 MHz (Wallstreet).