Kensington FRUs, Kensington robot spare parts and Newport PM500 spare parts Field Replaceable Units, are designed to minimize downtime and maximize productivity and can be quickly and easily installed on-site by customers without special tools or testing. The Kensington robot spare and Newport PM500 spare FRU assemblies are the same components used for new Kensington robot and stage manufacturing and in the repair center, with additional testing for field replacement certification. A range of Kensington robot spare and Newport PM500 spare FRUs are available to keep your robots and stages up and running, including: