Kingston, the world's largest independent memory manufacturer, has over 2, 000 memory products. In today's performance driven environment, memory upgrades provide an easy, economical alternative to increase system performance. Every memory product Kingston offers is designed to help you get maximum performance at the best price to you.??This memory is designed for HP Color LaserJet 5, 5M, CopyJet C3816A, M C3819A, DeskJet 1600 series, LaserJet MP, Si, P, Pxi series.