SMART+ dispensing cassettes Thermo Scientific™ SMART+ dispensing cassettes are used with the Multidrop Combi SMART+ dispenser. These cassettes are equipped with a SMART information radio-frequency identification (RFID) tag to store lifetime dispensing data for the cassette. When used with the Multidrop Combi SMART+ dispenser, the remaining usage time is displayed. SMART+ cassettes are available in standard and small tube versions and are distinguished from normal cassettes by an RFID tag.