Toner cartridges are designed for use with the Lexmark Laser Printers: C540n, C543n, C544n, C544dn, C544dw, C544dtn, X543dn, X544n, X544dn, X544dw, X544dtn.
Extra high-yield toner cartridge is designed for use in Lexmark C544, C544DN, C544DTN, C544DW, C544N and X544 Series. Lexmark Return Program Cartridges are sold at a discount, versus the prices of regular cartridges, in exchange for the customer's agreement to use the cartridge only once and return it only to Lexmark for remanufacturing or recycling. Approximate yield: 6000 pages.