Lexmark C544X1KG Black High-Yield Return Program Toner Cartridge Is Designed To Provide Exceptional Value, Reliability And Outstanding Print Quality. Yields Up To 4,000 Pages. Compatible Lexmark Models C544, C544dn, C544dtn, C544dw, C544n, X544, X544dn, X544dtn, X544dw, X544n, X548de, X548dte.