Rhinotek offers a full range of computer consumables manufacturing and marketing OEM compatible toner and inkjet cartridges, ribbons, and copier and fax supplies. Rhinotek products are 100% guaranteed, and Rhinotek's quality control standards rank among the highest in the industry. This Rhinotek color inkjet cartridge is designed for the following systems: Lexmark Color JetPrinter Z11, Z31, 5000, 7000 and Lexmark Optra Color 40.