Kingston is the world's largest independent memory manufacturer. 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 product is designed for the following systems: HP/Compaq - Business Notebook nc6220; HP/Compaq - Business Notebook nc6230; HP/Compaq - Tablet PC tc4200.