Ink cartridge is designed for use with Lexmark X3650, X4650, X5650, X5650ES, X6650, X6675 & Z2420. Superior Lexmark design means precision pairing between printer & cartridge for value, quality & environmental responsibility you can count on. Choose Genuine Lexmark supplies for genuine Lexmark results. Nonrefillable cartridge is licensed for single use only. 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 & return it only to Lexmark for remanufacturing or recycling. Cartridge yields approximately 175 pages.