Peripheral Enhancements Corporation 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 must rise above and beyond its competitors and add 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 Compaq Deskpro EX and EXS with Pentium 4 processor, Deskpro Workstation 300, AP250, Professional Workstation AP550, SP750.