Keri's PSM-2 Multi Technology Card allows the user to combine several identification technologies in a single, credit card thin credential. The cards can be ordered with or without a high coercivity magnetic stripe, which is useful if there are other types of systems in use that are mag stripe-based, such as cafeteria vending. They are also useful for customers who may have a proximity-based access control system at one site and a mag stripe-based system at other locations, allowing the user to carry a single card. They are for use with Keri's new Pyramid Series Proximity Readers which can be connected to virtually any manufacturer's access control system.