Sold as 1 Each. Yields up to 150000 pages per standard-yield cartridge. Unison toner's unique formulation consistently delivers outstanding image quality, ensures long-life print system reliability, and promotes superior sustainability, all in a shake-free print system. This Lexmark imaging unit delivers good-quality printing. Compatible with: Lexmark CS730de/CX730de/CX735adse/CS735de. Contains one black imaging unit.